WARNING Potential biases have been found in some of the Eastern US Sulfur data and nitrate data used to calculated these trends For more information see http://vista.cira.colostate.edu/improve/Data/QA_QC/issues.htm. These data will be soon be updated with using procedures that minimize the impact of these biases. ANNUAL TRENDS - AMBIENT MASS Group 10, 50, 90 5 year rolling average concentrations of the total fine (PM2.5) and coarse (PM2.5-PM10) mass and major fine aerosol types. The fractional contribution of the aerosol types to the reconstructed fine aerosol mass is also provided. These data are for all IMPROVE sites with data from 1988 - 1999. These data were used to construct the long term trends aerosol trends. Information about the IMPROVE monitoring sites can be obtained from: http://vista.cira.colostate.edu/improve/data/graphicViewer/metadata.asp VARIABLE DEFINITIONS AND UNITS: Group 10 = The average of the data between the 0th and 20th percentile Group 50 = The average of the data between the 40th and 60th percentile Group 90 = The average of the data between the 80th and 100th percentile TM = PM10 CM = COARSE MASS, THE DIFFERENCE OF PM10 AND PM2.5 - (micrograms/cubic meter) RCFM = RECONSTRUCTED PM2.5 - (micrograms/cubic meter) SO4 = AMMONIUM SULFATE MASS - (micrograms/cubic meter) NO3 = AMMONIUM NITRATE MASS - (micrograms/cubic meter) OMC= ORGANIC MASS - (micrograms/cubic meter) LAC = LIGHT ABSORBING CARBON MASS - (micrograms/cubic meter) SOIL = FINE SOIL MASS - (micrograms/cubic meter) THE PREFIX "F_" DENOTES THE PERCENT OF FMASS DUE TO THE INDIVIDUAL SPECIES ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 1 -------------------------------------------------- site=ACAD GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.71 3.48 2.19732 1.09 49.5 0.11 4.78 0.73 33.3 0.16 7.21 0.11 5.17 1994 6.51 3.43 2.16589 1.04 47.8 0.11 4.85 0.75 34.5 0.16 7.37 0.12 5.47 1995 5.99 3.38 2.12994 1.01 47.3 0.11 4.93 0.74 34.8 0.15 7.22 0.12 5.78 1996 5.67 3.22 2.00021 0.95 47.4 0.11 5.25 0.69 34.3 0.15 7.36 0.11 5.70 1997 6.11 3.52 1.98445 0.90 45.2 0.11 5.30 0.71 35.9 0.14 6.84 0.13 6.76 1998 6.12 3.55 1.93888 0.85 43.9 0.11 5.42 0.71 36.7 0.12 6.37 0.15 7.65 1999 6.16 3.61 1.86417 0.83 44.8 0.11 5.64 0.66 35.4 0.11 6.01 0.15 8.24 -------------------------------------------------- site=ACAD GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 10.64 4.63 4.69872 2.50 53.1 0.24 5.18 1.45 30.8 0.32 6.92 0.19 3.98 1994 10.90 4.92 4.76663 2.50 52.5 0.24 5.11 1.50 31.5 0.32 6.70 0.20 4.18 1995 10.43 4.80 4.60649 2.38 51.7 0.24 5.29 1.47 32.0 0.31 6.65 0.20 4.38 1996 10.07 4.71 4.37919 2.31 52.7 0.24 5.56 1.35 30.9 0.28 6.42 0.19 4.41 1997 10.16 4.97 4.30974 2.32 53.7 0.24 5.65 1.31 30.5 0.24 5.61 0.20 4.53 1998 10.36 5.11 4.17363 2.19 52.4 0.24 5.83 1.29 30.9 0.23 5.47 0.22 5.34 1999 9.61 4.61 3.88871 2.05 52.6 0.24 6.26 1.17 30.2 0.21 5.34 0.22 5.58 -------------------------------------------------- site=ACAD GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 21.04 5.79 13.4061 8.67 64.7 0.48 3.59 3.26 24.3 0.63 4.70 0.37 2.74 1994 22.29 6.31 13.9311 9.09 65.3 0.48 3.45 3.33 23.9 0.63 4.51 0.40 2.85 1995 21.48 6.06 13.6433 8.75 64.1 0.48 3.53 3.46 25.3 0.56 4.11 0.40 2.91 1996 20.94 5.88 13.2703 8.70 65.5 0.48 3.63 3.18 24.0 0.53 3.96 0.38 2.86 1997 21.45 6.77 12.5813 7.98 63.4 0.48 3.82 3.24 25.8 0.50 3.94 0.39 3.08 1998 21.33 7.15 11.9518 7.48 62.6 0.48 4.03 3.13 26.2 0.49 4.11 0.37 3.09 1999 19.87 6.70 10.9908 6.85 62.3 0.48 4.38 2.88 26.2 0.45 4.05 0.34 3.05 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 2 -------------------------------------------------- site=BADL GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 4.93 2.62 1.80991 0.61 33.7 0.14 7.51 0.64 35.3 0.08 4.37 0.35 19.2 1994 5.15 2.81 1.81450 0.63 34.7 0.14 7.49 0.63 34.5 0.09 4.74 0.34 18.6 1995 4.89 2.81 1.71926 0.61 35.3 0.14 7.90 0.59 34.2 0.08 4.72 0.31 17.9 1996 5.04 3.03 1.71569 0.63 36.8 0.14 7.92 0.58 33.7 0.08 4.68 0.29 16.9 1997 5.11 3.13 1.69092 0.62 36.5 0.14 8.03 0.58 34.2 0.08 4.76 0.28 16.5 1998 5.14 3.20 1.67921 0.60 36.0 0.14 8.09 0.57 34.1 0.08 5.02 0.28 16.8 1999 4.87 3.10 1.59504 0.57 35.8 0.14 8.52 0.54 34.0 0.08 5.00 0.27 16.7 -------------------------------------------------- site=BADL GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.77 5.51 3.49542 1.36 38.9 0.24 6.95 1.09 31.3 0.14 4.04 0.66 18.8 1994 9.38 5.07 3.52481 1.42 40.4 0.24 6.89 1.14 32.3 0.14 3.89 0.58 16.5 1995 8.71 4.74 3.35493 1.42 42.4 0.24 7.24 1.07 31.8 0.13 3.83 0.49 14.6 1996 8.77 4.80 3.33726 1.43 42.9 0.24 7.28 1.06 31.8 0.13 3.99 0.47 14.1 1997 8.64 4.63 3.31917 1.47 44.4 0.24 7.32 1.07 32.2 0.14 4.08 0.40 12.0 1998 8.62 4.52 3.44083 1.57 45.5 0.24 7.06 1.08 31.4 0.14 4.15 0.41 11.8 1999 8.50 4.61 3.26489 1.47 45.0 0.24 7.44 1.01 30.8 0.14 4.33 0.41 12.5 -------------------------------------------------- site=BADL GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 16.59 8.67 7.45743 3.24 43.4 1.15 15.4 1.88 25.2 0.22 3.01 0.97 13.0 1994 17.13 8.67 7.66854 3.20 41.7 1.15 14.9 2.17 28.3 0.23 3.03 0.92 12.0 1995 15.95 7.81 7.49559 3.17 42.3 1.15 15.3 2.13 28.4 0.23 3.06 0.82 11.0 1996 15.42 7.55 7.21022 3.16 43.9 1.15 15.9 1.97 27.3 0.22 3.09 0.71 9.80 1997 15.28 7.43 6.97793 2.96 42.5 1.15 16.4 1.99 28.5 0.22 3.08 0.66 9.47 1998 16.52 8.08 7.41225 3.13 42.2 1.15 15.5 2.16 29.2 0.23 3.09 0.74 10.0 1999 16.45 8.52 7.11145 3.08 43.3 1.15 16.1 1.90 26.7 0.22 3.06 0.77 10.8 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 3 -------------------------------------------------- site=BAND GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.59 3.08 2.00018 0.72 36.0 0.11 5.64 0.60 30.0 0.07 3.54 0.50 24.9 1994 5.00 2.62 1.95491 0.73 37.6 0.11 5.77 0.62 31.6 0.09 4.78 0.40 20.3 1995 4.69 2.57 1.82356 0.66 36.0 0.11 6.18 0.58 31.8 0.09 5.16 0.38 20.8 1996 4.52 2.53 1.73292 0.61 35.1 0.11 6.51 0.55 31.7 0.10 5.63 0.36 21.0 1997 4.52 2.51 1.71739 0.60 35.0 0.11 6.57 0.56 32.5 0.10 5.74 0.35 20.2 1998 4.52 2.65 1.67105 0.57 34.0 0.11 6.75 0.55 33.1 0.10 6.28 0.33 20.0 1999 4.56 2.71 1.67238 0.54 32.4 0.11 6.74 0.56 33.3 0.11 6.53 0.35 21.0 -------------------------------------------------- site=BAND GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.15 5.31 3.41094 1.03 30.3 0.20 5.99 1.21 35.5 0.18 5.16 0.79 23.1 1994 7.24 3.87 2.98794 0.99 33.0 0.20 6.84 1.12 37.4 0.19 6.24 0.49 16.4 1995 7.04 3.85 2.84155 0.95 33.3 0.20 7.19 1.02 35.8 0.19 6.64 0.48 17.1 1996 6.93 3.79 2.81842 0.94 33.4 0.20 7.25 1.01 35.9 0.18 6.40 0.48 17.1 1997 7.02 3.75 2.83131 0.99 34.8 0.20 7.22 0.99 35.1 0.17 6.16 0.47 16.7 1998 7.01 3.81 2.84868 0.98 34.6 0.20 7.17 1.01 35.5 0.18 6.26 0.47 16.5 1999 6.89 3.65 2.85364 0.98 34.4 0.20 7.16 1.02 35.6 0.17 6.11 0.48 16.7 -------------------------------------------------- site=BAND GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 13.15 6.49 5.53711 2.15 38.9 0.34 6.05 1.98 35.8 0.28 5.02 0.79 14.2 1994 11.34 5.57 5.04383 1.81 35.9 0.34 6.64 1.84 36.4 0.25 4.93 0.81 16.1 1995 11.03 5.39 5.09270 1.85 36.4 0.34 6.58 1.79 35.2 0.25 4.89 0.86 16.9 1996 11.81 6.14 5.09565 1.77 34.7 0.34 6.58 1.80 35.2 0.24 4.76 0.95 18.7 1997 11.96 6.31 5.05771 1.82 36.0 0.34 6.63 1.77 35.1 0.24 4.72 0.89 17.6 1998 12.17 6.58 5.27416 1.89 35.8 0.34 6.35 1.89 35.9 0.24 4.63 0.91 17.3 1999 12.40 6.76 5.32392 1.85 34.8 0.34 6.30 1.91 35.9 0.26 4.79 0.97 18.2 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 4 -------------------------------------------------- site=BIBE GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.86 4.30 2.18876 1.02 46.6 0.12 5.55 0.55 24.9 0.08 3.53 0.43 19.4 1994 6.80 4.21 2.25500 1.03 45.5 0.12 5.38 0.59 26.1 0.09 3.77 0.43 19.3 1995 6.59 4.12 2.19955 0.97 43.9 0.12 5.52 0.61 27.9 0.09 3.95 0.41 18.7 1996 6.48 4.12 2.14653 0.95 44.1 0.12 5.65 0.61 28.2 0.09 4.10 0.38 17.9 1997 6.07 3.58 2.15189 0.93 43.2 0.12 5.64 0.63 29.1 0.09 4.20 0.38 17.9 1998 6.63 3.93 2.34914 0.97 41.1 0.12 5.17 0.70 29.7 0.10 4.43 0.46 19.6 1999 7.06 4.25 2.40238 0.95 39.4 0.12 5.05 0.68 28.5 0.11 4.53 0.54 22.5 -------------------------------------------------- site=BIBE GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 12.45 7.05 4.68640 2.03 43.4 0.26 5.48 1.10 23.4 0.13 2.83 1.17 24.9 1994 13.01 7.43 4.75939 2.09 44.0 0.26 5.39 1.11 23.4 0.14 2.97 1.16 24.3 1995 12.47 7.11 4.69214 2.18 46.6 0.26 5.47 1.09 23.2 0.14 2.99 1.02 21.8 1996 12.20 6.88 4.69467 2.21 47.2 0.26 5.47 1.07 22.8 0.14 3.03 1.01 21.6 1997 12.41 7.09 4.71086 2.23 47.4 0.26 5.45 1.08 22.8 0.15 3.08 1.00 21.3 1998 13.20 7.68 4.94468 2.31 46.7 0.26 5.19 1.11 22.4 0.15 3.13 1.12 22.6 1999 13.96 8.11 5.33364 2.35 44.0 0.26 4.81 1.16 21.7 0.16 2.93 1.41 26.5 -------------------------------------------------- site=BIBE GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 20.41 10.92 8.0432 4.11 51.1 0.31 3.90 2.02 25.1 0.27 3.34 1.33 16.6 1994 20.27 10.52 8.3775 4.32 51.5 0.31 3.75 2.03 24.3 0.26 3.15 1.45 17.3 1995 20.86 11.03 8.7456 4.39 50.2 0.31 3.59 2.12 24.2 0.26 3.00 1.66 19.0 1996 19.99 10.21 8.8091 4.51 51.2 0.31 3.56 2.04 23.2 0.26 2.93 1.68 19.1 1997 20.13 9.77 9.3309 4.73 50.7 0.31 3.36 2.06 22.1 0.26 2.75 1.97 21.1 1998 22.34 10.45 10.5644 5.37 50.9 0.31 2.97 2.62 24.8 0.29 2.79 1.96 18.5 1999 26.07 13.38 11.2025 5.40 48.2 0.31 2.80 2.69 24.0 0.30 2.68 2.50 22.3 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 5 -------------------------------------------------- site=BRCA GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 3.51 1.83 1.31163 0.46 34.9 0.11 8.36 0.42 31.9 0.04 3.15 0.28 21.7 1994 3.48 1.82 1.25420 0.44 34.9 0.11 8.74 0.39 31.3 0.04 3.35 0.27 21.7 1995 3.29 1.74 1.19233 0.41 34.4 0.11 9.19 0.38 31.9 0.05 4.06 0.24 20.5 1996 3.06 1.67 1.10242 0.38 34.7 0.11 9.94 0.34 30.9 0.05 4.95 0.21 19.5 1997 2.89 1.56 1.05533 0.35 33.0 0.11 10.4 0.33 31.2 0.06 5.23 0.21 20.2 1998 2.78 1.47 1.03766 0.33 31.9 0.11 10.6 0.33 31.4 0.06 5.72 0.21 20.5 1999 2.65 1.37 1.05680 0.33 31.4 0.11 10.4 0.35 32.7 0.06 5.76 0.21 19.8 -------------------------------------------------- site=BRCA GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.96 3.72 2.65132 0.91 34.2 0.24 9.17 0.78 29.3 0.10 3.83 0.63 23.6 1994 6.95 3.70 2.60376 0.92 35.5 0.24 9.33 0.76 29.2 0.10 3.83 0.58 22.1 1995 6.60 3.66 2.53590 0.91 35.9 0.24 9.58 0.74 29.1 0.10 4.07 0.54 21.4 1996 6.26 3.26 2.55490 0.93 36.4 0.24 9.51 0.76 29.8 0.11 4.43 0.51 19.9 1997 5.95 3.05 2.50372 0.88 35.1 0.24 9.71 0.76 30.4 0.12 4.74 0.50 20.0 1998 5.72 2.97 2.43917 0.86 35.2 0.24 9.96 0.76 31.0 0.12 4.92 0.46 18.9 1999 5.63 2.97 2.42603 0.83 34.2 0.24 10.0 0.77 31.7 0.12 5.06 0.46 19.0 -------------------------------------------------- site=BRCA GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 11.21 6.49 4.11415 1.44 35.0 0.39 9.42 1.37 33.3 0.19 4.71 0.72 17.6 1994 11.18 6.36 4.16831 1.46 35.0 0.39 9.30 1.37 32.8 0.19 4.65 0.76 18.2 1995 10.88 6.02 4.23259 1.51 35.7 0.39 9.16 1.35 31.8 0.19 4.47 0.80 18.8 1996 10.57 5.34 4.58836 1.50 32.7 0.39 8.45 1.67 36.4 0.24 5.25 0.79 17.2 1997 10.56 5.10 4.80327 1.48 30.9 0.39 8.07 1.87 38.8 0.25 5.24 0.82 17.0 1998 10.25 4.89 4.88727 1.53 31.3 0.39 7.93 1.84 37.6 0.24 4.95 0.89 18.2 1999 10.26 4.93 4.95116 1.46 29.6 0.39 7.83 1.97 39.7 0.25 4.95 0.89 18.0 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 6 -------------------------------------------------- site=BRID GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 2.64 1.49 0.88807 0.32 35.7 0.07 8.38 0.33 37.2 0.02 2.22 0.15 16.5 1994 2.69 1.51 0.90955 0.33 36.7 0.07 8.18 0.32 35.5 0.02 2.68 0.15 16.9 1995 2.48 1.47 0.87194 0.32 36.5 0.07 8.54 0.30 34.5 0.03 3.20 0.15 17.3 1996 2.22 1.23 0.85299 0.32 37.8 0.07 8.73 0.29 33.9 0.03 3.93 0.13 15.6 1997 2.08 1.12 0.84302 0.31 36.8 0.07 8.83 0.30 35.8 0.03 4.09 0.12 14.5 1998 2.23 1.24 0.88177 0.32 36.5 0.07 8.44 0.33 37.0 0.04 4.36 0.12 13.6 1999 2.21 1.29 0.90194 0.31 34.4 0.07 8.25 0.35 39.1 0.04 4.60 0.12 13.7 -------------------------------------------------- site=BRID GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.79 3.38 2.02179 0.74 36.4 0.13 6.31 0.74 36.5 0.06 2.96 0.36 17.9 1994 5.75 3.36 2.02268 0.72 35.8 0.13 6.31 0.75 36.8 0.06 3.00 0.37 18.1 1995 5.56 3.17 1.98796 0.70 35.3 0.13 6.42 0.74 37.0 0.07 3.51 0.35 17.7 1996 5.08 2.82 1.93476 0.67 34.6 0.13 6.60 0.71 36.8 0.08 4.04 0.35 18.0 1997 4.92 2.68 1.87834 0.63 33.7 0.13 6.79 0.70 37.0 0.08 4.36 0.34 18.2 1998 4.88 2.61 1.97333 0.64 32.3 0.13 6.47 0.78 39.4 0.09 4.61 0.34 17.3 1999 5.00 2.72 1.98833 0.62 31.4 0.13 6.42 0.80 40.0 0.10 5.04 0.34 17.2 -------------------------------------------------- site=BRID GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 11.07 6.20 3.90503 1.31 33.6 0.20 5.13 1.32 33.7 0.14 3.62 0.94 24.0 1994 10.78 5.81 4.05116 1.25 30.8 0.20 4.94 1.48 36.6 0.14 3.35 0.98 24.3 1995 9.55 4.93 3.88314 1.19 30.8 0.20 5.16 1.43 36.7 0.15 3.88 0.91 23.5 1996 9.30 4.47 4.12180 1.20 29.2 0.20 4.86 1.66 40.4 0.18 4.48 0.87 21.1 1997 8.93 4.45 3.81435 1.16 30.3 0.20 5.25 1.54 40.3 0.18 4.65 0.74 19.5 1998 9.12 4.46 4.09231 1.13 27.7 0.20 4.90 1.76 43.0 0.19 4.69 0.80 19.7 1999 9.37 4.89 4.01820 1.11 27.5 0.20 4.99 1.74 43.2 0.19 4.75 0.78 19.5 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 7 -------------------------------------------------- site=CANY GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.42 2.93 1.80016 0.72 40.2 0.10 5.41 0.46 25.5 0.05 2.56 0.47 26.4 1994 5.36 2.95 1.78316 0.73 40.9 0.10 5.46 0.46 25.9 0.05 2.87 0.44 24.9 1995 5.33 3.07 1.71865 0.69 40.1 0.10 5.66 0.46 26.5 0.06 3.47 0.42 24.3 1996 4.78 2.82 1.56384 0.63 40.2 0.10 6.22 0.41 26.4 0.07 4.35 0.36 22.8 1997 4.92 2.97 1.50094 0.59 39.4 0.10 6.48 0.41 27.2 0.07 4.84 0.33 22.1 1998 4.89 3.02 1.46239 0.55 37.8 0.10 6.65 0.41 28.0 0.08 5.46 0.32 22.1 1999 4.85 2.99 1.43561 0.52 36.0 0.10 6.78 0.40 27.8 0.08 5.64 0.34 23.7 -------------------------------------------------- site=CANY GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.02 5.49 2.95387 1.19 40.2 0.18 6.19 0.75 25.3 0.10 3.51 0.73 24.8 1994 8.96 5.44 2.95216 1.20 40.6 0.18 6.20 0.75 25.3 0.11 3.61 0.72 24.3 1995 8.90 5.58 2.85185 1.13 39.7 0.18 6.42 0.71 24.7 0.11 3.79 0.72 25.3 1996 8.13 4.96 2.74073 1.06 38.6 0.18 6.68 0.71 26.0 0.12 4.39 0.67 24.3 1997 8.70 5.48 2.73172 1.05 38.4 0.18 6.70 0.69 25.4 0.12 4.53 0.68 25.0 1998 8.09 4.99 2.68670 1.02 37.8 0.18 6.81 0.73 27.0 0.14 5.05 0.63 23.3 1999 7.60 4.65 2.56272 0.95 37.0 0.18 7.14 0.71 27.8 0.14 5.30 0.58 22.7 -------------------------------------------------- site=CANY GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 14.25 9.09 4.41792 1.80 40.8 0.40 8.97 1.29 29.2 0.21 4.73 0.72 16.3 1994 14.23 9.12 4.44855 1.72 38.6 0.40 8.90 1.28 28.9 0.20 4.44 0.85 19.1 1995 12.76 7.95 4.25323 1.67 39.3 0.40 9.31 1.27 29.8 0.20 4.74 0.72 16.8 1996 12.89 7.78 4.52851 1.60 35.3 0.40 8.75 1.38 30.5 0.21 4.66 0.94 20.8 1997 13.19 8.26 4.40993 1.52 34.5 0.40 8.98 1.30 29.6 0.21 4.66 0.98 22.3 1998 13.38 8.50 4.40514 1.49 33.8 0.40 8.99 1.34 30.4 0.22 4.90 0.96 21.9 1999 13.68 8.74 4.39042 1.41 32.2 0.40 9.02 1.35 30.8 0.22 5.08 1.00 22.9 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 8 -------------------------------------------------- site=CHIR GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.38 3.15 1.84668 0.75 40.5 0.13 6.84 0.49 26.8 0.08 4.19 0.40 21.7 1994 5.62 3.32 1.83698 0.73 40.0 0.13 6.88 0.48 25.9 0.08 4.45 0.42 22.8 1995 5.64 3.32 1.88250 0.73 38.9 0.13 6.71 0.49 26.0 0.09 4.65 0.45 23.7 1996 5.44 3.12 1.86671 0.72 38.5 0.13 6.77 0.48 25.5 0.09 4.79 0.46 24.4 1997 5.46 3.14 1.87381 0.73 39.2 0.13 6.74 0.47 25.3 0.09 4.70 0.45 24.1 1998 5.68 3.27 1.90734 0.71 37.4 0.13 6.62 0.50 26.3 0.09 4.66 0.48 24.9 1999 5.54 3.15 1.94460 0.70 35.9 0.13 6.50 0.52 26.9 0.09 4.57 0.51 26.1 -------------------------------------------------- site=CHIR GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.36 5.50 3.27041 1.40 42.7 0.17 5.33 0.84 25.7 0.12 3.80 0.74 22.5 1994 9.34 5.34 3.34645 1.47 43.9 0.17 5.20 0.83 24.8 0.13 3.74 0.75 22.3 1995 9.62 5.70 3.30404 1.42 43.0 0.17 5.27 0.81 24.5 0.13 3.81 0.77 23.4 1996 9.60 5.65 3.36404 1.46 43.5 0.17 5.18 0.79 23.6 0.13 3.76 0.81 24.0 1997 9.63 5.57 3.44938 1.49 43.3 0.17 5.05 0.76 22.1 0.12 3.58 0.89 25.9 1998 9.82 5.70 3.50879 1.49 42.4 0.17 4.96 0.82 23.2 0.12 3.54 0.91 25.9 1999 9.79 5.78 3.45913 1.41 40.7 0.17 5.03 0.82 23.8 0.13 3.70 0.93 26.8 -------------------------------------------------- site=CHIR GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 13.59 7.41 5.36739 2.45 45.6 0.21 3.93 1.63 30.4 0.22 4.15 0.85 15.9 1994 14.03 7.56 5.55462 2.44 44.0 0.21 3.79 1.68 30.3 0.22 4.02 0.99 17.8 1995 13.98 7.50 5.62206 2.55 45.3 0.21 3.75 1.62 28.9 0.22 3.98 1.01 18.0 1996 13.98 7.43 5.75305 2.58 44.9 0.21 3.66 1.63 28.3 0.23 3.98 1.10 19.1 1997 14.17 7.55 5.66073 2.70 47.8 0.21 3.72 1.44 25.5 0.19 3.40 1.11 19.6 1998 14.74 7.90 5.86079 2.78 47.4 0.21 3.60 1.53 26.1 0.19 3.28 1.15 19.5 1999 14.59 8.01 5.72105 2.72 47.6 0.21 3.68 1.44 25.2 0.18 3.23 1.16 20.3 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 9 -------------------------------------------------- site=CRLA GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 2.78 1.90 0.90509 0.26 29.0 0.04 4.58 0.36 39.3 0.09 9.91 0.16 17.2 1994 2.78 1.90 0.90509 0.26 29.0 0.04 4.58 0.36 39.3 0.09 9.91 0.16 17.2 1995 2.24 1.55 0.80329 0.22 28.0 0.04 5.16 0.32 39.3 0.09 11.0 0.13 16.6 1996 2.25 1.63 0.78080 0.21 26.6 0.04 5.30 0.32 40.6 0.09 10.9 0.13 16.6 1997 2.25 1.59 0.73435 0.19 26.0 0.04 5.64 0.31 41.7 0.08 10.5 0.12 16.2 1998 2.17 1.57 0.67438 0.16 23.5 0.04 6.14 0.30 44.9 0.07 10.9 0.10 14.5 1999 2.16 1.55 0.69111 0.16 23.8 0.04 5.99 0.30 43.8 0.07 10.2 0.11 16.2 -------------------------------------------------- site=CRLA GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.77 3.40 1.92775 0.50 25.9 0.09 4.84 0.77 39.9 0.16 8.33 0.41 21.0 1994 5.77 3.40 1.92775 0.50 25.9 0.09 4.84 0.77 39.9 0.16 8.33 0.41 21.0 1995 5.15 3.05 1.85150 0.46 25.1 0.09 5.04 0.74 39.8 0.18 9.59 0.38 20.5 1996 5.09 3.04 1.81278 0.45 24.6 0.09 5.14 0.72 39.9 0.18 10.1 0.37 20.3 1997 4.93 2.98 1.73246 0.42 24.3 0.09 5.38 0.71 40.7 0.17 10.1 0.34 19.5 1998 4.67 3.02 1.56644 0.35 22.6 0.09 5.95 0.68 43.2 0.17 10.9 0.27 17.3 1999 4.43 2.78 1.51919 0.34 22.2 0.09 6.14 0.66 43.7 0.16 10.9 0.26 17.1 -------------------------------------------------- site=CRLA GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 11.33 6.19 4.22693 1.14 27.1 0.20 4.68 1.72 40.6 0.33 7.75 0.84 19.9 1994 11.33 6.19 4.22693 1.14 27.1 0.20 4.68 1.72 40.6 0.33 7.75 0.84 19.9 1995 10.23 5.27 4.24321 1.04 24.6 0.20 4.66 1.75 41.2 0.40 9.36 0.86 20.2 1996 11.88 6.22 4.79013 1.00 21.0 0.20 4.13 2.25 46.9 0.45 9.34 0.89 18.6 1997 11.33 5.94 4.66858 0.91 19.5 0.20 4.23 2.33 49.8 0.45 9.59 0.79 16.9 1998 11.43 5.87 4.88697 0.86 17.6 0.20 4.05 2.50 51.2 0.43 8.72 0.90 18.4 1999 11.38 5.73 4.92927 0.80 16.3 0.20 4.01 2.69 54.6 0.41 8.36 0.82 16.7 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 10 -------------------------------------------------- site=DENA GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 2.81 1.73 0.73458 0.23 31.7 0.03 3.67 0.28 38.6 0.02 3.25 0.17 22.7 1994 2.78 1.62 0.73006 0.25 34.5 0.03 3.70 0.26 35.0 0.03 3.84 0.17 23.0 1995 2.69 1.67 0.70453 0.25 35.2 0.03 3.83 0.23 32.6 0.03 3.94 0.17 24.4 1996 2.74 1.83 0.67723 0.24 35.7 0.03 3.98 0.21 31.5 0.03 4.74 0.16 24.1 1997 2.93 1.96 0.69425 0.24 35.1 0.03 3.89 0.22 32.1 0.04 5.44 0.16 23.5 1998 2.83 1.88 0.65084 0.23 35.2 0.03 4.15 0.22 33.2 0.04 6.11 0.14 21.3 1999 2.76 1.96 0.62270 0.21 34.3 0.03 4.33 0.21 33.7 0.04 6.41 0.13 21.2 -------------------------------------------------- site=DENA GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 3.83 2.33 1.19076 0.44 37.2 0.05 4.30 0.47 39.5 0.06 5.10 0.17 14.0 1994 3.47 2.03 1.08424 0.41 37.7 0.05 4.73 0.42 38.9 0.06 5.18 0.15 13.5 1995 3.38 2.06 1.03446 0.39 37.8 0.05 4.95 0.39 37.6 0.07 6.44 0.14 13.3 1996 3.56 2.22 1.07703 0.42 38.7 0.05 4.76 0.39 36.2 0.07 6.91 0.14 13.4 1997 3.84 2.45 1.12130 0.42 37.8 0.05 4.57 0.41 37.0 0.08 7.20 0.15 13.5 1998 3.71 2.46 1.10340 0.41 37.0 0.05 4.64 0.41 36.8 0.08 7.39 0.16 14.1 1999 3.66 2.44 1.13658 0.43 37.6 0.05 4.51 0.40 35.3 0.09 7.70 0.17 14.9 -------------------------------------------------- site=DENA GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.48 5.41 3.08874 1.00 32.4 0.10 3.31 1.57 50.8 0.16 5.34 0.25 8.24 1994 8.39 4.05 3.21806 1.04 32.3 0.10 3.18 1.70 52.9 0.17 5.35 0.20 6.21 1995 7.96 3.95 3.03406 1.08 35.7 0.10 3.37 1.47 48.3 0.16 5.42 0.22 7.18 1996 7.17 3.69 2.76176 1.10 39.8 0.10 3.70 1.16 41.9 0.16 5.69 0.25 8.98 1997 8.04 4.11 3.06883 1.04 33.8 0.10 3.33 1.50 48.7 0.19 6.06 0.25 8.09 1998 7.57 4.16 2.74371 0.96 34.9 0.10 3.73 1.26 46.1 0.17 6.24 0.25 9.06 1999 7.60 4.45 2.62746 0.88 33.5 0.10 3.89 1.20 45.8 0.17 6.41 0.27 10.4 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 11 -------------------------------------------------- site=GLAC GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.98 3.31 2.19248 0.54 24.5 0.09 4.27 1.15 52.5 0.16 7.36 0.25 11.3 1994 6.05 3.45 2.15172 0.53 24.8 0.09 4.35 1.11 51.8 0.15 7.05 0.26 12.1 1995 5.99 3.52 2.12648 0.51 24.0 0.09 4.41 1.10 51.6 0.16 7.72 0.26 12.3 1996 5.13 2.80 2.02374 0.48 23.7 0.09 4.63 1.05 51.9 0.17 8.60 0.23 11.1 1997 4.78 2.36 1.96848 0.47 23.7 0.09 4.76 1.03 52.2 0.17 8.75 0.21 10.6 1998 4.34 2.09 1.91334 0.43 22.5 0.09 4.90 1.01 52.9 0.18 9.43 0.20 10.3 1999 4.07 1.85 1.85357 0.41 21.9 0.09 5.06 0.99 53.3 0.18 9.97 0.18 9.77 -------------------------------------------------- site=GLAC GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 11.60 6.10 4.63244 1.10 23.8 0.17 3.66 2.47 53.3 0.35 7.53 0.54 11.8 1994 11.45 5.95 4.63948 1.07 23.1 0.17 3.66 2.47 53.3 0.36 7.72 0.57 12.3 1995 11.39 6.14 4.46080 1.04 23.4 0.17 3.80 2.33 52.2 0.35 7.92 0.57 12.7 1996 10.34 5.31 4.31584 1.07 24.8 0.17 3.93 2.20 51.0 0.35 8.14 0.52 12.1 1997 10.10 5.33 4.11153 1.00 24.3 0.17 4.13 2.11 51.4 0.34 8.19 0.49 12.0 1998 10.26 5.57 4.11406 0.96 23.4 0.17 4.12 2.12 51.5 0.35 8.61 0.51 12.4 1999 10.07 5.68 3.88717 0.93 24.0 0.17 4.37 1.98 51.0 0.34 8.63 0.47 12.1 -------------------------------------------------- site=GLAC GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 21.77 10.16 9.47654 1.58 16.6 0.40 4.27 5.67 59.8 0.80 8.43 1.03 10.9 1994 22.79 10.81 9.69103 1.51 15.6 0.40 4.17 5.90 60.8 0.79 8.14 1.09 11.2 1995 22.35 10.73 9.34481 1.50 16.1 0.40 4.33 5.61 60.1 0.74 7.87 1.09 11.7 1996 19.85 9.04 8.85773 1.56 17.6 0.40 4.56 5.24 59.2 0.71 8.03 0.94 10.7 1997 17.63 7.44 8.40746 1.56 18.6 0.40 4.81 5.06 60.1 0.68 8.12 0.70 8.37 1998 21.12 10.50 8.95679 1.47 16.4 0.40 4.51 5.37 59.9 0.70 7.80 1.01 11.3 1999 23.74 13.35 8.77862 1.47 16.7 0.40 4.60 5.00 57.0 0.64 7.35 1.26 14.4 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 12 -------------------------------------------------- site=GRSA GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.09 2.74 1.76658 0.50 28.2 0.10 5.81 0.61 34.7 0.06 3.62 0.49 27.7 1994 4.59 2.34 1.67838 0.50 29.5 0.10 6.12 0.59 35.2 0.07 4.15 0.42 25.0 1995 3.93 2.04 1.55213 0.46 29.8 0.10 6.61 0.53 33.9 0.07 4.41 0.39 25.2 1996 3.61 2.04 1.37879 0.42 30.6 0.10 7.45 0.45 32.8 0.06 4.56 0.34 24.6 1997 3.11 1.66 1.33728 0.40 30.2 0.10 7.68 0.44 32.5 0.07 4.98 0.33 24.6 1998 3.16 1.67 1.40846 0.41 29.1 0.10 7.29 0.46 32.8 0.07 5.09 0.36 25.7 1999 3.21 1.70 1.45503 0.40 27.8 0.10 7.06 0.46 31.5 0.07 5.08 0.41 28.5 -------------------------------------------------- site=GRSA GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 8.82 5.08 3.03016 0.83 27.5 0.18 5.80 0.93 30.6 0.10 3.28 1.00 32.9 1994 8.17 4.62 2.86230 0.81 28.5 0.18 6.14 0.91 31.6 0.10 3.50 0.87 30.2 1995 7.42 4.19 2.76444 0.81 29.4 0.18 6.36 0.85 30.6 0.10 3.46 0.83 30.1 1996 6.98 3.88 2.70566 0.81 30.0 0.18 6.50 0.79 29.2 0.10 3.86 0.83 30.5 1997 6.46 3.53 2.66241 0.82 30.9 0.18 6.60 0.77 29.1 0.11 3.95 0.78 29.5 1998 6.32 3.34 2.74963 0.86 31.2 0.18 6.39 0.83 30.3 0.11 3.99 0.77 28.1 1999 6.13 3.17 2.77209 0.85 30.5 0.18 6.34 0.85 30.8 0.11 3.93 0.79 28.4 -------------------------------------------------- site=GRSA GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 16.76 11.22 4.68921 1.36 29.0 0.30 6.50 1.40 29.9 0.15 3.27 1.47 31.4 1994 20.47 14.75 4.78476 1.31 27.4 0.30 6.37 1.37 28.7 0.15 3.06 1.65 34.5 1995 17.36 11.95 4.66614 1.38 29.7 0.30 6.53 1.32 28.3 0.15 3.16 1.51 32.3 1996 16.36 10.99 4.66428 1.42 30.4 0.30 6.54 1.36 29.1 0.16 3.44 1.43 30.6 1997 16.99 11.45 4.82717 1.44 29.9 0.30 6.32 1.30 27.0 0.16 3.26 1.62 33.6 1998 16.70 11.10 5.07880 1.50 29.5 0.30 6.00 1.42 27.9 0.16 3.20 1.69 33.3 1999 12.99 7.70 4.95762 1.46 29.4 0.30 6.15 1.41 28.4 0.17 3.41 1.61 32.6 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 13 -------------------------------------------------- site=GRSM GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 7.96 3.63 3.92521 2.00 51.0 0.23 5.89 1.24 31.7 0.26 6.63 0.19 4.79 1994 7.85 3.55 3.93276 1.96 50.0 0.23 5.88 1.28 32.5 0.26 6.69 0.20 4.96 1995 7.64 3.51 3.78180 1.84 48.6 0.23 6.12 1.25 33.1 0.26 6.94 0.20 5.22 1996 8.31 3.81 3.97130 1.93 48.5 0.23 5.83 1.30 32.7 0.28 6.96 0.24 5.99 1997 8.33 3.62 4.16818 2.04 48.9 0.23 5.55 1.36 32.6 0.28 6.82 0.25 6.11 1998 8.59 3.77 4.23040 2.02 47.8 0.23 5.47 1.40 33.1 0.29 6.79 0.29 6.84 1999 9.18 4.15 4.34326 2.06 47.4 0.23 5.33 1.46 33.7 0.29 6.79 0.30 6.84 -------------------------------------------------- site=GRSM GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 15.79 5.04 9.63332 5.56 57.7 0.37 3.86 2.74 28.4 0.52 5.41 0.44 4.59 1994 15.47 4.92 9.40685 5.40 57.4 0.37 3.96 2.67 28.4 0.50 5.34 0.46 4.92 1995 15.87 5.62 9.15446 5.18 56.6 0.37 4.06 2.55 27.9 0.46 5.05 0.59 6.42 1996 15.91 5.66 9.19238 5.16 56.1 0.37 4.05 2.63 28.6 0.48 5.20 0.55 6.02 1997 15.54 5.51 8.91138 4.97 55.8 0.37 4.17 2.57 28.8 0.46 5.13 0.54 6.08 1998 15.41 5.17 8.98848 5.00 55.6 0.37 4.14 2.57 28.6 0.47 5.20 0.58 6.45 1999 15.89 5.08 9.32629 5.14 55.2 0.37 3.99 2.75 29.5 0.48 5.17 0.58 6.22 -------------------------------------------------- site=GRSM GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 32.55 7.06 21.4318 15.57 72.7 0.18 0.86 4.47 20.8 0.51 2.38 0.70 3.27 1994 32.77 6.78 21.7955 15.89 72.9 0.18 0.85 4.52 20.7 0.51 2.36 0.69 3.16 1995 30.52 5.73 20.9460 15.17 72.4 0.18 0.88 4.41 21.0 0.50 2.39 0.69 3.28 1996 31.27 5.67 21.5127 15.61 72.5 0.18 0.86 4.49 20.9 0.50 2.34 0.73 3.41 1997 31.89 5.92 21.7125 15.60 71.8 0.18 0.85 4.62 21.3 0.50 2.31 0.81 3.72 1998 33.32 6.84 22.1625 15.80 71.3 0.18 0.83 4.83 21.8 0.58 2.61 0.77 3.48 1999 33.53 7.39 21.7753 15.28 70.2 0.18 0.85 4.94 22.7 0.58 2.68 0.79 3.64 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 14 -------------------------------------------------- site=GUMO GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.39 3.77 2.30193 0.93 40.5 0.16 6.76 0.65 28.4 0.09 3.88 0.47 20.5 1994 5.94 3.65 2.06846 0.86 41.5 0.16 7.53 0.60 28.8 0.09 4.58 0.36 17.6 1995 6.19 3.77 2.21654 0.85 38.5 0.16 7.02 0.64 28.7 0.11 4.76 0.47 21.0 1996 6.18 3.53 2.34140 0.87 37.2 0.16 6.65 0.63 26.8 0.10 4.44 0.58 25.0 1997 6.22 3.47 2.33545 0.86 36.9 0.16 6.67 0.62 26.7 0.11 4.58 0.59 25.1 1998 6.04 3.24 2.34167 0.85 36.5 0.16 6.65 0.59 25.0 0.11 4.81 0.63 27.0 1999 6.28 3.39 2.40359 0.84 35.1 0.16 6.48 0.60 24.9 0.11 4.51 0.70 29.0 -------------------------------------------------- site=GUMO GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 11.00 6.60 3.70948 1.56 42.0 0.23 6.11 0.97 26.2 0.16 4.30 0.79 21.4 1994 11.06 6.79 3.75983 1.48 39.3 0.23 6.03 0.99 26.4 0.16 4.18 0.91 24.1 1995 11.69 7.29 3.90591 1.49 38.0 0.23 5.80 0.98 25.1 0.16 3.99 1.06 27.1 1996 11.29 6.67 4.08299 1.53 37.6 0.23 5.55 1.00 24.5 0.16 3.85 1.17 28.6 1997 11.79 6.89 4.21728 1.65 39.0 0.23 5.37 0.98 23.2 0.15 3.53 1.22 28.9 1998 12.14 7.09 4.36181 1.71 39.2 0.23 5.20 0.94 21.6 0.15 3.44 1.33 30.6 1999 12.03 6.97 4.35786 1.76 40.3 0.23 5.20 0.90 20.7 0.15 3.39 1.33 30.5 -------------------------------------------------- site=GUMO GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 18.36 10.08 7.47271 3.22 43.1 0.38 5.06 1.73 23.1 0.18 2.40 1.97 26.3 1994 19.62 11.61 7.28198 3.02 41.5 0.38 5.19 1.56 21.4 0.16 2.22 2.16 29.7 1995 20.38 12.32 7.34733 3.17 43.1 0.38 5.15 1.50 20.3 0.16 2.22 2.15 29.2 1996 20.53 12.53 7.28498 3.14 43.1 0.38 5.19 1.43 19.6 0.16 2.20 2.18 29.9 1997 21.18 12.81 7.58116 3.42 45.1 0.38 4.99 1.42 18.8 0.17 2.18 2.20 29.0 1998 22.26 13.26 8.23063 3.67 44.6 0.38 4.59 1.54 18.7 0.17 2.12 2.47 30.0 1999 25.11 15.38 8.64689 3.68 42.6 0.38 4.37 1.52 17.6 0.20 2.26 2.87 33.2 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 15 -------------------------------------------------- site=JARB GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 3.80 2.37 1.01013 0.31 30.5 0.04 4.31 0.40 39.7 0.04 3.74 0.22 21.8 1994 3.56 2.10 0.99129 0.31 31.0 0.04 4.39 0.39 39.8 0.04 3.67 0.21 21.2 1995 3.12 1.82 0.94445 0.28 29.8 0.04 4.61 0.38 40.4 0.04 4.30 0.20 20.9 1996 3.12 1.82 0.94445 0.28 29.8 0.04 4.61 0.38 40.4 0.04 4.30 0.20 20.9 1997 2.48 1.28 0.90217 0.27 29.6 0.04 4.82 0.37 41.4 0.04 4.66 0.18 19.6 1998 2.47 1.29 0.93567 0.27 28.8 0.04 4.65 0.38 40.7 0.05 5.03 0.19 20.8 1999 1.99 1.04 0.80225 0.22 28.0 0.04 5.42 0.30 37.3 0.05 5.87 0.19 23.3 -------------------------------------------------- site=JARB GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 7.66 5.07 2.19013 0.55 25.2 0.11 4.82 0.81 37.1 0.08 3.75 0.64 29.1 1994 7.72 5.13 2.16851 0.55 25.3 0.11 4.86 0.78 36.2 0.08 3.65 0.65 30.0 1995 7.00 4.54 2.09379 0.53 25.3 0.11 5.04 0.75 35.8 0.09 4.08 0.62 29.8 1996 7.00 4.54 2.09379 0.53 25.3 0.11 5.04 0.75 35.8 0.09 4.08 0.62 29.8 1997 6.51 4.12 2.07945 0.52 25.1 0.11 5.07 0.75 36.0 0.08 3.89 0.62 29.9 1998 6.34 4.17 1.88500 0.51 26.9 0.11 5.59 0.67 35.3 0.09 4.64 0.52 27.6 1999 6.74 4.44 2.00818 0.50 24.8 0.11 5.25 0.66 32.9 0.09 4.46 0.65 32.6 -------------------------------------------------- site=JARB GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 17.16 11.39 4.64651 1.00 21.6 0.19 3.99 1.41 30.4 0.12 2.62 1.92 41.4 1994 17.73 10.98 5.55312 0.94 16.9 0.19 3.33 2.19 39.4 0.17 3.04 2.08 37.4 1995 16.68 10.46 5.23527 0.90 17.2 0.19 3.54 2.07 39.6 0.17 3.29 1.90 36.4 1996 16.68 10.46 5.23527 0.90 17.2 0.19 3.54 2.07 39.6 0.17 3.29 1.90 36.4 1997 15.72 9.66 5.22636 0.85 16.3 0.19 3.54 2.22 42.5 0.18 3.45 1.79 34.2 1998 17.02 10.50 5.79439 0.82 14.2 0.19 3.20 2.46 42.5 0.21 3.55 2.12 36.6 1999 16.63 10.28 5.57968 0.84 15.0 0.19 3.32 2.23 40.0 0.22 3.92 2.11 37.8 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 16 -------------------------------------------------- site=LAVO GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 2.91 1.69 1.04740 0.23 22.4 0.04 3.88 0.52 49.3 0.05 5.13 0.20 19.3 1994 2.66 1.52 1.00861 0.23 23.1 0.04 4.03 0.51 50.2 0.05 5.42 0.17 17.3 1995 2.54 1.45 0.97959 0.24 24.3 0.04 4.15 0.46 47.3 0.06 5.69 0.18 18.6 1996 2.35 1.33 0.96526 0.24 24.7 0.04 4.21 0.44 45.7 0.06 5.95 0.19 19.5 1997 2.33 1.30 0.96276 0.24 24.8 0.04 4.22 0.44 45.7 0.06 5.77 0.19 19.5 1998 2.28 1.26 0.91667 0.21 23.0 0.04 4.43 0.45 48.8 0.05 5.88 0.16 17.9 1999 2.29 1.14 0.89271 0.20 22.5 0.04 4.55 0.44 49.7 0.06 6.37 0.15 16.8 -------------------------------------------------- site=LAVO GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.85 4.16 2.36887 0.52 21.9 0.13 5.65 1.20 50.7 0.15 6.35 0.36 15.4 1994 6.61 3.98 2.28902 0.50 21.8 0.13 5.85 1.11 48.7 0.14 6.10 0.40 17.6 1995 6.13 3.42 2.37596 0.52 22.0 0.13 5.64 1.10 46.4 0.15 6.13 0.47 19.8 1996 5.58 2.99 2.31205 0.53 22.7 0.13 5.79 1.02 44.1 0.14 5.97 0.50 21.4 1997 4.91 2.47 2.18854 0.49 22.5 0.13 6.12 0.97 44.5 0.13 5.89 0.46 21.0 1998 4.92 2.38 2.29332 0.49 21.4 0.13 5.84 1.10 47.8 0.14 5.96 0.43 19.0 1999 4.59 2.13 2.31578 0.49 21.3 0.13 5.78 1.16 50.0 0.15 6.35 0.38 16.6 -------------------------------------------------- site=LAVO GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 13.65 8.36 4.76116 1.04 21.8 0.38 8.04 2.43 51.0 0.32 6.62 0.60 12.5 1994 12.67 7.39 4.79620 1.01 21.1 0.38 7.99 2.39 49.9 0.29 6.13 0.71 14.8 1995 12.09 6.54 4.85337 1.07 22.1 0.38 7.89 2.35 48.3 0.29 5.93 0.77 15.8 1996 10.42 4.34 5.23437 1.19 22.7 0.38 7.32 2.50 47.8 0.31 5.94 0.85 16.3 1997 9.96 3.94 5.13184 1.14 22.3 0.38 7.46 2.43 47.3 0.30 5.81 0.88 17.1 1998 10.14 3.71 5.57805 1.17 21.1 0.38 6.87 2.71 48.5 0.35 6.32 0.96 17.3 1999 12.37 4.10 7.21598 1.17 16.2 0.38 5.31 4.27 59.2 0.57 7.87 0.83 11.5 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 17 -------------------------------------------------- site=MEVE GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 4.50 2.32 1.54442 0.55 35.9 0.09 5.76 0.43 27.9 0.05 3.12 0.42 27.4 1994 4.57 2.26 1.66721 0.63 37.9 0.09 5.33 0.47 28.2 0.06 3.42 0.42 25.1 1995 4.13 2.12 1.61465 0.59 36.5 0.09 5.51 0.46 28.3 0.07 4.39 0.41 25.3 1996 3.56 1.83 1.52263 0.56 36.6 0.09 5.84 0.42 27.8 0.08 4.99 0.38 24.8 1997 3.35 1.68 1.52508 0.55 36.4 0.09 5.83 0.41 27.2 0.08 5.31 0.39 25.3 1998 3.31 1.73 1.53219 0.51 33.2 0.09 5.80 0.45 29.2 0.10 6.24 0.39 25.5 1999 3.10 1.68 1.47688 0.43 29.3 0.09 6.02 0.45 30.2 0.10 7.10 0.40 27.4 -------------------------------------------------- site=MEVE GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.43 3.31 2.48668 1.01 40.8 0.16 6.32 0.70 28.1 0.09 3.53 0.53 21.2 1994 7.00 3.78 2.57563 1.04 40.4 0.16 6.10 0.73 28.5 0.09 3.64 0.55 21.3 1995 6.74 3.68 2.61189 1.01 38.8 0.16 6.01 0.73 28.1 0.10 3.95 0.60 23.0 1996 6.57 3.61 2.66557 0.96 35.9 0.16 5.89 0.74 27.7 0.12 4.44 0.69 26.0 1997 6.59 3.60 2.71767 0.93 34.2 0.16 5.78 0.76 27.8 0.12 4.53 0.75 27.7 1998 6.16 3.24 2.76978 0.93 33.7 0.16 5.67 0.83 30.1 0.14 4.96 0.71 25.6 1999 5.35 2.61 2.72132 0.87 32.1 0.16 5.77 0.85 31.2 0.15 5.51 0.69 25.4 -------------------------------------------------- site=MEVE GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 12.16 7.19 3.96204 1.67 42.2 0.21 5.39 1.18 29.9 0.19 4.84 0.70 17.6 1994 12.80 7.92 3.93100 1.57 40.0 0.21 5.44 1.19 30.4 0.19 4.89 0.76 19.3 1995 11.52 6.97 3.89827 1.64 42.2 0.21 5.48 1.13 28.9 0.19 4.82 0.72 18.6 1996 11.18 6.11 4.39019 1.68 38.3 0.21 4.87 1.34 30.5 0.22 4.96 0.94 21.4 1997 11.76 6.37 4.67795 1.69 36.2 0.21 4.57 1.44 30.8 0.23 4.89 1.10 23.5 1998 10.93 5.52 4.91675 1.77 36.0 0.21 4.35 1.53 31.1 0.22 4.44 1.18 24.1 1999 13.88 7.85 5.44237 1.74 32.0 0.21 3.93 1.58 29.0 0.23 4.27 1.68 30.8 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 18 -------------------------------------------------- site=MORA GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 4.74 2.90 1.41025 0.33 23.7 0.04 2.85 0.83 58.9 0.11 7.95 0.09 6.59 1994 4.64 2.85 1.32450 0.33 24.7 0.04 3.03 0.76 57.5 0.11 8.11 0.09 6.72 1995 4.29 2.65 1.22767 0.30 24.2 0.04 3.27 0.71 57.8 0.10 8.26 0.08 6.45 1996 3.99 2.54 1.16113 0.27 23.3 0.04 3.46 0.67 58.0 0.09 8.08 0.08 7.12 1997 3.47 2.11 1.09549 0.27 24.6 0.04 3.67 0.62 57.0 0.08 7.22 0.08 7.52 1998 3.08 1.98 0.94513 0.23 24.4 0.04 4.25 0.55 57.8 0.07 7.29 0.06 6.32 1999 2.72 1.76 0.92268 0.21 22.9 0.04 4.35 0.55 59.5 0.07 7.18 0.06 6.08 -------------------------------------------------- site=MORA GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 8.61 3.39 4.44624 1.23 27.7 0.15 3.46 2.46 55.4 0.39 8.86 0.20 4.60 1994 8.41 3.38 4.27225 1.19 27.9 0.15 3.60 2.35 54.9 0.38 8.99 0.20 4.60 1995 7.99 3.25 4.03536 1.15 28.4 0.15 3.81 2.19 54.3 0.36 8.98 0.18 4.50 1996 7.52 2.98 3.83977 1.10 28.8 0.15 4.00 2.06 53.6 0.34 8.96 0.18 4.66 1997 7.19 2.94 3.57315 1.07 29.9 0.15 4.30 1.88 52.6 0.31 8.76 0.16 4.42 1998 6.81 2.82 3.39488 1.06 31.3 0.15 4.53 1.73 50.8 0.30 8.74 0.16 4.62 1999 6.49 2.71 3.30925 1.05 31.6 0.15 4.64 1.68 50.8 0.28 8.37 0.15 4.59 -------------------------------------------------- site=MORA GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 16.02 4.72 9.43176 3.12 33.0 0.35 3.73 4.80 50.9 0.78 8.22 0.39 4.17 1994 16.05 4.92 9.27160 3.09 33.3 0.35 3.80 4.67 50.4 0.75 8.05 0.41 4.44 1995 15.50 4.86 8.93726 2.97 33.2 0.35 3.94 4.48 50.1 0.72 8.08 0.41 4.62 1996 14.54 4.19 8.78091 2.77 31.6 0.35 4.01 4.50 51.2 0.72 8.19 0.44 5.02 1997 14.03 4.31 8.24403 2.65 32.1 0.35 4.27 4.18 50.7 0.64 7.79 0.42 5.12 1998 14.01 4.38 8.39966 2.69 32.1 0.35 4.19 4.18 49.7 0.65 7.80 0.52 6.22 1999 13.31 3.91 8.36669 2.68 32.1 0.35 4.21 4.17 49.9 0.65 7.74 0.51 6.13 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 19 -------------------------------------------------- site=PEFO GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.34 2.55 2.43868 0.75 30.6 0.12 4.93 0.78 32.0 0.13 5.50 0.66 27.0 1994 5.16 2.46 2.27698 0.71 31.2 0.12 5.28 0.72 31.8 0.13 5.59 0.60 26.1 1995 5.00 2.43 2.20069 0.67 30.6 0.12 5.47 0.68 30.8 0.13 5.93 0.60 27.2 1996 4.39 2.17 1.97569 0.62 31.6 0.12 6.09 0.61 30.7 0.12 6.06 0.51 25.6 1997 4.39 2.24 1.88399 0.58 30.8 0.12 6.39 0.56 29.8 0.12 6.40 0.50 26.5 1998 4.48 2.32 1.92221 0.58 29.9 0.12 6.26 0.59 30.5 0.13 6.74 0.51 26.6 1999 4.32 2.20 1.98375 0.58 29.4 0.12 6.07 0.61 30.6 0.14 6.95 0.53 26.9 -------------------------------------------------- site=PEFO GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 8.10 3.71 3.76748 1.31 34.7 0.19 5.15 1.16 30.8 0.31 8.19 0.80 21.1 1994 7.75 3.50 3.64341 1.26 34.6 0.19 5.32 1.13 31.0 0.31 8.48 0.75 20.6 1995 7.52 3.42 3.50025 1.19 34.0 0.19 5.54 1.08 30.9 0.30 8.47 0.74 21.1 1996 7.41 3.48 3.34952 1.09 32.5 0.19 5.79 1.03 30.9 0.27 7.99 0.77 22.9 1997 7.34 3.53 3.28179 1.06 32.3 0.19 5.91 0.99 30.2 0.25 7.56 0.79 24.0 1998 7.47 3.81 3.22311 1.01 31.3 0.19 6.02 0.98 30.3 0.25 7.70 0.80 24.7 1999 7.45 3.85 3.25874 0.99 30.4 0.19 5.95 1.00 30.7 0.23 7.09 0.84 25.9 -------------------------------------------------- site=PEFO GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 11.66 6.30 4.77320 1.82 38.1 0.29 6.04 1.53 32.1 0.41 8.54 0.73 15.3 1994 11.45 6.25 4.70628 1.78 37.9 0.29 6.13 1.49 31.7 0.39 8.32 0.75 15.9 1995 11.04 5.72 4.84517 1.87 38.7 0.29 5.95 1.54 31.7 0.38 7.88 0.76 15.8 1996 10.76 5.53 4.79768 1.93 40.3 0.29 6.01 1.48 30.8 0.34 7.10 0.76 15.7 1997 10.87 5.52 4.98202 1.90 38.2 0.29 5.79 1.51 30.3 0.33 6.61 0.95 19.1 1998 11.12 5.72 5.19760 2.01 38.7 0.29 5.55 1.59 30.5 0.32 6.22 0.99 19.0 1999 12.01 6.27 5.48049 1.94 35.3 0.29 5.26 1.76 32.1 0.33 6.04 1.16 21.2 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 20 -------------------------------------------------- site=PINN GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 8.22 5.01 2.08021 0.69 33.3 0.37 17.9 0.71 34.1 0.12 5.79 0.19 8.92 1994 8.20 4.97 2.07966 0.68 32.7 0.37 17.9 0.72 34.6 0.12 5.94 0.19 8.90 1995 7.76 4.97 1.97569 0.64 32.3 0.37 18.8 0.67 34.1 0.12 6.14 0.17 8.60 1996 7.13 4.56 1.89208 0.57 30.4 0.37 19.7 0.67 35.4 0.12 6.35 0.15 8.17 1997 6.86 4.30 1.91690 0.56 29.2 0.37 19.4 0.69 36.1 0.13 6.68 0.16 8.58 1998 6.80 4.20 1.94836 0.54 27.6 0.37 19.1 0.73 37.7 0.14 7.15 0.17 8.53 1999 6.49 3.99 1.87619 0.52 28.0 0.37 19.8 0.69 37.0 0.13 6.96 0.16 8.27 -------------------------------------------------- site=PINN GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 15.73 9.02 4.99998 1.49 29.7 0.89 17.8 1.85 37.1 0.37 7.41 0.40 8.04 1994 14.80 8.54 4.78877 1.36 28.4 0.89 18.6 1.79 37.5 0.36 7.59 0.38 7.94 1995 13.83 8.01 4.77082 1.41 29.6 0.89 18.6 1.75 36.8 0.35 7.30 0.37 7.74 1996 13.13 7.74 4.68873 1.34 28.7 0.89 19.0 1.70 36.2 0.35 7.47 0.41 8.71 1997 12.25 6.97 4.60361 1.27 27.6 0.89 19.3 1.69 36.8 0.34 7.40 0.41 8.90 1998 11.77 6.80 4.50046 1.22 27.2 0.89 19.7 1.65 36.6 0.34 7.60 0.40 8.87 1999 11.90 6.84 4.53927 1.27 27.9 0.89 19.6 1.64 36.1 0.33 7.21 0.42 9.21 -------------------------------------------------- site=PINN GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 24.04 13.29 8.95350 2.40 26.8 1.45 16.2 3.59 40.1 0.75 8.33 0.77 8.64 1994 23.11 12.96 8.52810 2.36 27.7 1.45 17.0 3.30 38.7 0.66 7.74 0.76 8.90 1995 22.90 13.12 8.34386 2.31 27.6 1.45 17.3 3.16 37.9 0.64 7.72 0.78 9.36 1996 21.49 12.07 8.22819 2.24 27.2 1.45 17.6 3.12 37.9 0.62 7.58 0.80 9.71 1997 19.71 10.69 8.05148 2.11 26.2 1.45 18.0 3.14 39.0 0.63 7.77 0.73 9.06 1998 19.40 10.54 7.93890 2.11 26.5 1.45 18.2 3.06 38.5 0.62 7.78 0.71 8.98 1999 20.34 10.74 8.53720 2.17 25.4 1.45 16.9 3.44 40.3 0.66 7.74 0.82 9.66 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 21 -------------------------------------------------- site=PORE GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 10.67 7.30 1.52886 0.77 50.2 0.20 13.4 0.42 27.3 0.05 3.36 0.09 5.73 1994 10.46 6.85 1.51183 0.78 51.7 0.20 13.5 0.38 25.4 0.05 3.22 0.09 6.20 1995 9.19 5.88 1.53806 0.76 49.7 0.20 13.3 0.42 27.1 0.06 3.83 0.09 6.14 1996 8.31 5.18 1.55019 0.74 47.7 0.20 13.2 0.45 28.9 0.07 4.22 0.09 6.03 1997 8.14 4.98 1.54645 0.74 48.1 0.20 13.2 0.44 28.6 0.06 3.99 0.09 6.09 1998 7.76 4.47 1.54120 0.70 45.3 0.20 13.2 0.48 30.8 0.06 4.09 0.10 6.54 1999 7.76 4.45 1.61709 0.75 46.3 0.20 12.6 0.50 31.1 0.06 3.72 0.10 6.23 -------------------------------------------------- site=PORE GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 19.36 12.96 3.40594 1.65 48.5 0.49 14.5 1.00 29.3 0.11 3.16 0.16 4.56 1994 18.43 11.98 3.25612 1.61 49.4 0.49 15.1 0.89 27.5 0.10 3.15 0.16 4.89 1995 16.94 10.69 3.19746 1.58 49.3 0.49 15.4 0.85 26.6 0.10 3.13 0.18 5.61 1996 16.39 10.29 3.10285 1.50 48.4 0.49 15.9 0.81 26.2 0.10 3.13 0.20 6.38 1997 16.90 10.70 3.00784 1.45 48.3 0.49 16.4 0.77 25.6 0.09 2.90 0.21 6.82 1998 15.13 8.88 2.98563 1.46 49.0 0.49 16.5 0.74 24.9 0.08 2.56 0.21 7.09 1999 15.38 9.47 2.99539 1.38 46.1 0.49 16.4 0.82 27.4 0.08 2.72 0.22 7.33 -------------------------------------------------- site=PORE GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 29.61 16.68 9.35155 2.53 27.1 2.36 25.2 3.53 37.7 0.62 6.64 0.32 3.39 1994 27.55 14.99 8.90233 2.61 29.3 2.36 26.5 3.11 34.9 0.53 5.92 0.30 3.39 1995 27.18 14.37 8.77689 2.73 31.1 2.36 26.9 2.89 32.9 0.49 5.62 0.31 3.50 1996 25.96 13.08 8.68160 2.85 32.8 2.36 27.2 2.69 31.0 0.45 5.21 0.33 3.80 1997 26.10 12.97 8.56109 2.73 31.9 2.36 27.5 2.67 31.2 0.44 5.18 0.35 4.12 1998 23.07 10.54 8.35567 2.79 33.4 2.36 28.2 2.45 29.3 0.41 4.88 0.35 4.20 1999 24.16 11.30 8.90397 2.99 33.6 2.36 26.5 2.77 31.1 0.37 4.18 0.41 4.60 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 22 -------------------------------------------------- site=REDW GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.84 3.79 1.06418 0.29 27.3 0.08 7.63 0.58 54.2 0.06 6.03 0.05 4.80 1994 5.70 3.79 1.02209 0.28 27.3 0.08 7.94 0.54 53.3 0.07 6.55 0.05 4.90 1995 5.68 3.90 0.99979 0.28 27.6 0.08 8.12 0.52 51.9 0.07 7.14 0.05 5.33 1996 5.28 3.64 0.93181 0.27 29.2 0.08 8.71 0.46 49.2 0.07 7.25 0.05 5.67 1997 5.13 3.32 0.92255 0.27 29.0 0.08 8.80 0.45 48.9 0.07 7.09 0.06 6.19 1998 5.15 3.32 0.87063 0.25 28.2 0.08 9.32 0.42 48.6 0.06 7.04 0.06 6.79 1999 5.26 3.28 0.87457 0.26 29.3 0.08 9.28 0.42 47.9 0.05 6.12 0.07 7.47 -------------------------------------------------- site=REDW GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.88 5.51 2.74366 0.88 32.1 0.24 8.83 1.34 48.8 0.15 5.49 0.13 4.82 1994 9.67 5.30 2.70205 0.83 30.8 0.24 8.97 1.35 50.0 0.14 5.24 0.13 4.99 1995 9.66 5.48 2.57609 0.81 31.6 0.24 9.41 1.24 48.1 0.13 5.10 0.15 5.73 1996 9.09 5.04 2.44117 0.81 33.3 0.24 9.93 1.13 46.1 0.12 4.77 0.14 5.82 1997 9.22 5.25 2.32193 0.81 35.0 0.24 10.4 1.03 44.6 0.10 4.10 0.14 5.87 1998 8.86 5.11 2.17020 0.80 37.0 0.24 11.2 0.91 42.1 0.08 3.79 0.13 5.90 1999 8.67 5.01 2.05651 0.82 39.7 0.24 11.8 0.80 38.7 0.07 3.52 0.13 6.24 -------------------------------------------------- site=REDW GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 18.26 8.37 6.34123 2.22 35.0 0.61 9.65 2.95 46.5 0.27 4.18 0.30 4.73 1994 17.52 8.02 5.99976 2.12 35.3 0.61 10.2 2.74 45.6 0.24 4.05 0.29 4.81 1995 16.57 7.44 5.94278 2.05 34.5 0.61 10.3 2.74 46.2 0.24 4.08 0.29 4.93 1996 15.97 7.23 5.67690 2.05 36.0 0.61 10.8 2.51 44.2 0.22 3.87 0.29 5.15 1997 15.65 7.38 5.54519 1.96 35.4 0.61 11.0 2.49 44.8 0.20 3.60 0.29 5.15 1998 14.95 7.22 5.14030 1.98 38.6 0.61 11.9 2.10 40.8 0.18 3.43 0.27 5.29 1999 16.59 7.64 6.15535 1.93 31.3 0.61 9.94 3.07 49.9 0.25 4.04 0.29 4.76 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 23 -------------------------------------------------- site=ROMO GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 2.96 1.65 0.99648 0.37 36.8 0.05 5.00 0.34 34.0 0.04 3.60 0.21 20.6 1994 3.29 1.95 1.04836 0.36 34.2 0.05 4.75 0.36 34.8 0.04 4.09 0.23 22.1 1995 3.07 1.91 1.04064 0.34 32.4 0.05 4.79 0.36 35.1 0.06 5.53 0.23 22.3 1996 2.90 1.93 1.00842 0.32 32.1 0.05 4.94 0.34 33.4 0.07 6.55 0.23 23.0 1997 2.93 2.08 0.99860 0.32 31.6 0.05 4.99 0.34 34.1 0.07 7.18 0.22 22.2 1998 2.76 1.99 1.00102 0.31 30.9 0.05 4.98 0.37 36.5 0.08 8.15 0.20 19.5 1999 2.37 1.74 0.93770 0.30 31.5 0.05 5.31 0.35 36.9 0.08 8.60 0.17 17.7 -------------------------------------------------- site=ROMO GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.79 3.35 2.85653 0.99 34.8 0.18 6.26 0.92 32.1 0.12 4.14 0.65 22.7 1994 7.37 3.96 2.79102 0.97 34.6 0.18 6.41 0.87 31.1 0.12 4.26 0.66 23.6 1995 7.46 4.28 2.65642 0.88 33.2 0.18 6.73 0.81 30.5 0.11 4.20 0.67 25.4 1996 6.94 3.98 2.61547 0.89 33.8 0.18 6.84 0.78 30.0 0.12 4.67 0.64 24.6 1997 6.57 4.00 2.46655 0.85 34.5 0.18 7.25 0.74 30.1 0.12 4.97 0.57 23.2 1998 6.44 3.83 2.53765 0.84 33.2 0.18 7.05 0.83 32.6 0.13 5.25 0.56 21.9 1999 5.68 3.17 2.52628 0.82 32.5 0.18 7.08 0.86 34.1 0.13 5.27 0.53 21.1 -------------------------------------------------- site=ROMO GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 13.43 6.93 5.30989 1.74 32.8 0.47 8.82 1.93 36.3 0.23 4.36 0.94 17.7 1994 13.73 7.12 5.23311 1.64 31.4 0.47 8.95 1.89 36.1 0.23 4.30 1.01 19.3 1995 13.24 7.16 5.21373 1.64 31.4 0.47 8.98 1.78 34.1 0.23 4.33 1.11 21.2 1996 12.82 6.72 5.28313 1.59 30.1 0.47 8.86 1.91 36.2 0.25 4.64 1.07 20.2 1997 12.10 6.24 5.19712 1.59 30.6 0.47 9.01 1.87 36.0 0.25 4.72 1.02 19.7 1998 11.92 5.99 5.39762 1.54 28.5 0.47 8.67 2.00 37.1 0.26 4.88 1.13 20.9 1999 11.00 5.42 5.27566 1.54 29.2 0.47 8.87 1.92 36.4 0.27 5.13 1.08 20.4 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 24 -------------------------------------------------- site=SAGO GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 5.88 3.33 1.77505 0.36 20.5 0.35 19.9 0.56 31.7 0.17 9.83 0.32 18.1 1994 5.88 3.33 1.77505 0.36 20.5 0.35 19.9 0.56 31.7 0.17 9.83 0.32 18.1 1995 5.55 3.30 1.66444 0.34 20.2 0.35 21.2 0.55 32.9 0.17 10.0 0.26 15.6 1996 4.78 2.76 1.55567 0.31 20.2 0.35 22.7 0.47 30.3 0.14 8.98 0.28 17.8 1997 4.78 2.76 1.55567 0.31 20.2 0.35 22.7 0.47 30.3 0.14 8.98 0.28 17.8 1998 5.12 2.98 1.56604 0.28 17.9 0.35 22.6 0.45 28.9 0.14 8.64 0.35 22.1 1999 5.69 3.16 1.71878 0.31 18.1 0.35 20.6 0.48 28.1 0.15 8.76 0.42 24.5 -------------------------------------------------- site=SAGO GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 20.39 11.12 7.56409 1.53 20.3 2.01 26.5 2.38 31.4 0.45 5.95 1.19 15.8 1994 20.39 11.12 7.56409 1.53 20.3 2.01 26.5 2.38 31.4 0.45 5.95 1.19 15.8 1995 19.10 10.39 7.25623 1.50 20.7 2.01 27.7 2.17 29.9 0.41 5.60 1.17 16.1 1996 16.28 8.58 6.60179 1.33 20.2 2.01 30.4 1.89 28.7 0.38 5.77 0.99 14.9 1997 16.28 8.58 6.60179 1.33 20.2 2.01 30.4 1.89 28.7 0.38 5.77 0.99 14.9 1998 15.05 7.82 6.14099 1.24 20.3 2.01 32.7 1.61 26.3 0.36 5.79 0.92 15.0 1999 14.41 7.10 6.08898 1.22 20.1 2.01 33.0 1.61 26.4 0.34 5.63 0.91 14.9 -------------------------------------------------- site=SAGO GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 35.99 20.59 16.1456 3.15 19.5 6.36 39.4 4.19 26.0 0.71 4.37 1.74 10.8 1994 35.99 20.59 16.1456 3.15 19.5 6.36 39.4 4.19 26.0 0.71 4.37 1.74 10.8 1995 32.20 18.57 15.3825 3.09 20.1 6.36 41.4 3.69 24.0 0.59 3.84 1.65 10.7 1996 27.06 13.76 15.0756 2.98 19.8 6.36 42.2 3.71 24.6 0.60 4.01 1.42 9.44 1997 27.06 13.76 15.0756 2.98 19.8 6.36 42.2 3.71 24.6 0.60 4.01 1.42 9.44 1998 24.28 10.96 14.6710 2.85 19.4 6.36 43.4 3.56 24.3 0.63 4.29 1.27 8.67 1999 23.73 10.41 14.4312 2.73 19.0 6.36 44.1 3.50 24.3 0.62 4.28 1.21 8.40 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 25 -------------------------------------------------- site=SHEN GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 7.61 3.56 3.73311 1.97 52.8 0.34 9.20 1.03 27.6 0.20 5.34 0.19 5.10 1994 7.31 3.39 3.61315 1.88 52.0 0.34 9.50 1.00 27.7 0.20 5.63 0.19 5.15 1995 7.08 3.37 3.46910 1.82 52.5 0.34 9.89 0.93 26.8 0.20 5.68 0.18 5.13 1996 7.09 3.25 3.54489 1.90 53.5 0.34 9.68 0.92 25.8 0.21 5.83 0.18 5.17 1997 7.24 3.12 3.67178 1.96 53.4 0.34 9.35 0.95 25.9 0.22 5.98 0.20 5.37 1998 6.92 2.91 3.42631 1.78 51.9 0.34 10.0 0.89 25.9 0.22 6.46 0.20 5.71 1999 6.95 2.93 3.40625 1.78 52.2 0.34 10.1 0.86 25.3 0.21 6.26 0.21 6.17 -------------------------------------------------- site=SHEN GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 15.58 5.40 9.35268 5.56 59.4 0.65 6.98 2.30 24.6 0.42 4.54 0.42 4.45 1994 15.25 5.29 9.11727 5.38 59.0 0.65 7.16 2.25 24.6 0.42 4.58 0.42 4.63 1995 14.99 5.23 8.87189 5.22 58.8 0.65 7.36 2.18 24.6 0.38 4.31 0.43 4.89 1996 14.21 4.71 8.57804 5.08 59.3 0.65 7.61 2.06 24.0 0.37 4.28 0.41 4.81 1997 13.89 4.60 8.27034 4.93 59.6 0.65 7.90 1.95 23.5 0.35 4.22 0.40 4.81 1998 12.68 4.29 7.75172 4.54 58.6 0.65 8.43 1.80 23.2 0.35 4.49 0.41 5.30 1999 12.44 4.20 7.58085 4.38 57.8 0.65 8.62 1.79 23.6 0.35 4.61 0.40 5.33 -------------------------------------------------- site=SHEN GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 33.72 6.76 23.7626 18.43 77.5 0.35 1.47 3.80 16.0 0.43 1.83 0.75 3.15 1994 33.79 6.78 23.9197 18.40 76.9 0.35 1.46 3.98 16.7 0.43 1.79 0.76 3.19 1995 33.23 6.51 23.7378 18.23 76.8 0.35 1.48 3.97 16.7 0.43 1.80 0.77 3.23 1996 31.84 6.28 22.5644 17.13 75.9 0.35 1.55 3.91 17.3 0.43 1.91 0.74 3.30 1997 31.32 5.97 22.1022 16.62 75.2 0.35 1.59 3.95 17.9 0.43 1.95 0.75 3.40 1998 29.58 5.27 21.5154 15.55 72.3 0.35 1.63 4.42 20.5 0.51 2.37 0.68 3.17 1999 27.60 5.07 20.1743 14.30 70.9 0.35 1.74 4.31 21.4 0.54 2.66 0.68 3.35 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 26 -------------------------------------------------- site=TONT GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 7.26 4.47 2.37290 0.84 35.6 0.18 7.48 0.74 31.1 0.12 5.02 0.49 20.8 1994 6.57 3.88 2.29683 0.81 35.4 0.18 7.73 0.71 30.9 0.13 5.49 0.47 20.5 1995 6.62 3.93 2.26965 0.77 33.9 0.18 7.83 0.72 31.8 0.14 6.11 0.46 20.4 1996 6.27 3.77 2.21833 0.73 32.8 0.18 8.01 0.70 31.7 0.15 6.55 0.46 20.9 1997 6.42 3.88 2.23365 0.74 33.2 0.18 7.95 0.70 31.3 0.14 6.23 0.48 21.4 1998 6.24 3.79 2.17114 0.69 31.8 0.18 8.18 0.70 32.4 0.14 6.50 0.46 21.1 1999 6.60 4.12 2.21595 0.67 30.4 0.18 8.02 0.74 33.5 0.15 6.66 0.47 21.4 -------------------------------------------------- site=TONT GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 13.43 8.08 4.32138 1.61 37.2 0.26 5.96 1.26 29.1 0.21 4.76 0.99 23.0 1994 12.04 6.89 4.18975 1.55 36.9 0.26 6.15 1.21 28.9 0.22 5.19 0.96 22.9 1995 11.83 6.90 4.13422 1.53 36.9 0.26 6.23 1.20 29.1 0.24 5.72 0.91 22.1 1996 11.69 6.94 4.10690 1.50 36.4 0.26 6.27 1.18 28.7 0.23 5.65 0.94 22.9 1997 11.49 6.82 4.02044 1.51 37.7 0.26 6.41 1.12 27.9 0.23 5.63 0.90 22.4 1998 11.15 6.70 3.94552 1.45 36.9 0.26 6.53 1.10 27.9 0.23 5.75 0.91 23.0 1999 11.54 7.26 3.95109 1.40 35.3 0.26 6.52 1.17 29.5 0.23 5.78 0.90 22.9 -------------------------------------------------- site=TONT GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 16.72 9.27 6.50861 2.40 36.9 0.47 7.29 2.30 35.3 0.36 5.53 0.97 14.9 1994 15.98 8.73 6.35098 2.22 34.9 0.47 7.47 2.20 34.7 0.35 5.56 1.10 17.4 1995 16.47 9.11 6.50470 2.23 34.3 0.47 7.30 2.31 35.5 0.38 5.86 1.11 17.0 1996 17.69 10.23 6.68060 2.16 32.3 0.47 7.10 2.40 36.0 0.39 5.90 1.25 18.7 1997 17.61 10.29 6.59545 2.22 33.7 0.47 7.20 2.27 34.4 0.37 5.58 1.26 19.1 1998 17.50 10.42 6.55379 2.28 34.7 0.47 7.24 2.15 32.8 0.36 5.48 1.29 19.7 1999 18.57 11.33 6.80670 2.20 32.3 0.47 6.97 2.40 35.3 0.38 5.63 1.35 19.8 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 27 -------------------------------------------------- site=WEMI GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 4.18 2.55 1.22160 0.40 33.1 0.05 4.17 0.39 31.7 0.09 7.50 0.29 23.6 1994 3.95 2.33 1.24632 0.43 34.3 0.05 4.09 0.39 31.0 0.10 7.70 0.29 22.9 1995 3.78 2.25 1.20448 0.40 33.4 0.05 4.23 0.37 30.6 0.10 7.96 0.29 23.8 1996 3.51 2.04 1.18089 0.40 33.6 0.05 4.32 0.37 31.0 0.09 7.81 0.27 23.3 1997 3.28 1.96 1.17178 0.39 33.2 0.05 4.35 0.36 31.0 0.10 8.16 0.27 23.2 1998 3.11 1.84 1.15722 0.38 33.2 0.05 4.41 0.35 30.6 0.09 7.87 0.28 23.9 1999 2.99 1.82 1.11005 0.34 30.4 0.05 4.59 0.35 31.7 0.09 7.98 0.28 25.3 -------------------------------------------------- site=WEMI GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 7.25 4.47 2.35603 0.78 33.2 0.12 5.01 0.72 30.7 0.15 6.57 0.58 24.5 1994 7.51 4.63 2.40166 0.79 33.1 0.12 4.92 0.72 30.0 0.16 6.74 0.61 25.3 1995 7.21 4.38 2.34013 0.78 33.3 0.12 5.05 0.69 29.4 0.16 6.98 0.59 25.2 1996 6.83 4.07 2.34548 0.77 32.6 0.12 5.03 0.68 28.8 0.16 6.85 0.63 26.7 1997 6.67 3.88 2.33373 0.78 33.2 0.12 5.06 0.68 29.3 0.16 6.92 0.59 25.5 1998 6.31 3.63 2.29027 0.77 33.4 0.12 5.16 0.69 30.3 0.16 7.05 0.55 24.0 1999 5.82 3.22 2.24206 0.73 32.6 0.12 5.27 0.71 31.7 0.16 7.12 0.52 23.3 -------------------------------------------------- site=WEMI GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 10.81 6.45 3.79950 1.34 35.4 0.17 4.39 1.18 31.0 0.24 6.34 0.87 22.9 1994 10.76 6.36 3.81895 1.36 35.6 0.17 4.37 1.19 31.3 0.23 6.13 0.86 22.6 1995 10.37 5.93 3.82859 1.39 36.3 0.17 4.36 1.20 31.2 0.24 6.25 0.84 21.9 1996 9.26 4.82 3.82430 1.43 37.4 0.17 4.36 1.28 33.5 0.26 6.69 0.69 18.0 1997 9.52 4.99 3.85583 1.47 38.2 0.17 4.33 1.24 32.1 0.24 6.31 0.73 19.0 1998 9.45 4.87 3.94338 1.50 38.1 0.17 4.23 1.28 32.5 0.24 6.12 0.75 19.0 1999 10.50 5.71 4.05728 1.47 36.1 0.17 4.11 1.34 33.0 0.25 6.08 0.84 20.7 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 28 -------------------------------------------------- site=YELL GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 3.43 1.81 1.43629 0.39 26.8 0.08 5.48 0.57 39.5 0.07 4.89 0.33 23.3 1994 3.15 1.72 1.28810 0.36 27.7 0.08 6.12 0.51 39.5 0.07 5.10 0.28 21.6 1995 3.34 2.00 1.20301 0.34 28.4 0.08 6.55 0.45 37.7 0.06 5.34 0.26 22.0 1996 3.29 2.00 1.17757 0.34 28.8 0.08 6.69 0.46 38.7 0.06 5.16 0.24 20.7 1997 3.17 2.00 1.09024 0.32 29.0 0.08 7.23 0.43 39.6 0.06 5.36 0.20 18.8 1998 3.20 2.13 1.01293 0.31 30.5 0.08 7.78 0.38 38.0 0.05 5.40 0.19 18.4 1999 2.84 1.79 0.96455 0.29 30.5 0.08 8.17 0.35 36.4 0.05 5.33 0.19 19.7 -------------------------------------------------- site=YELL GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 6.62 3.56 2.87026 0.70 24.4 0.18 6.13 1.15 40.1 0.15 5.17 0.69 24.1 1994 6.12 3.18 2.71050 0.71 26.0 0.18 6.49 1.05 38.6 0.14 5.14 0.64 23.7 1995 6.11 3.35 2.56474 0.65 25.5 0.18 6.85 1.00 39.2 0.14 5.48 0.59 23.0 1996 6.39 3.67 2.52932 0.65 25.7 0.18 6.95 1.02 40.3 0.13 5.28 0.55 21.8 1997 6.34 3.74 2.41016 0.63 26.0 0.18 7.29 0.98 40.6 0.12 5.09 0.51 21.0 1998 6.24 3.74 2.31399 0.62 26.6 0.18 7.60 0.94 40.4 0.12 5.37 0.46 20.0 1999 5.84 3.40 2.30948 0.59 25.5 0.18 7.61 0.98 42.5 0.12 5.22 0.44 19.2 -------------------------------------------------- site=YELL GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 14.37 8.63 4.98242 0.94 18.8 0.20 4.02 2.19 43.9 0.28 5.59 1.38 27.7 1994 16.26 9.70 5.74395 0.91 15.9 0.20 3.49 2.83 49.2 0.30 5.21 1.50 26.2 1995 15.64 9.43 5.39520 0.89 16.6 0.20 3.71 2.57 47.7 0.29 5.43 1.44 26.6 1996 16.09 9.40 5.70428 0.91 15.9 0.20 3.51 2.90 50.8 0.32 5.55 1.38 24.2 1997 16.11 9.40 5.74138 0.87 15.2 0.20 3.49 3.02 52.6 0.32 5.53 1.33 23.2 1998 17.19 9.88 6.16365 0.89 14.4 0.20 3.25 3.35 54.3 0.34 5.54 1.39 22.5 1999 15.26 8.58 5.49319 0.83 15.1 0.20 3.65 2.73 49.7 0.29 5.26 1.44 26.3 ANNUAL TRENDS - AMBIENT MASS 09:42 Thursday, February 21, 2002 29 -------------------------------------------------- site=YOSE GROUP=10 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 3.38 2.23 0.95326 0.26 27.3 0.07 7.66 0.44 46.5 0.06 6.47 0.12 12.1 1994 3.49 2.38 0.94527 0.26 27.0 0.07 7.72 0.44 47.1 0.06 6.41 0.11 11.8 1995 3.63 2.58 0.93300 0.24 26.1 0.07 7.82 0.44 47.2 0.06 6.35 0.12 12.5 1996 3.44 2.55 0.86396 0.23 26.6 0.07 8.45 0.39 44.6 0.06 6.86 0.12 13.5 1997 3.38 2.34 0.97355 0.23 23.2 0.07 7.50 0.48 49.5 0.06 6.52 0.13 13.3 1998 3.47 2.42 0.97173 0.22 22.2 0.07 7.51 0.49 50.7 0.06 6.26 0.13 13.4 1999 3.29 2.20 1.03400 0.22 21.5 0.07 7.06 0.53 51.6 0.06 6.16 0.14 13.7 -------------------------------------------------- site=YOSE GROUP=50 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 9.42 5.09 3.73433 0.97 26.0 0.42 11.3 1.60 42.9 0.21 5.67 0.53 14.1 1994 9.18 4.98 3.69480 0.96 25.9 0.42 11.4 1.54 41.8 0.20 5.40 0.57 15.4 1995 8.86 4.55 3.81383 0.97 25.5 0.42 11.1 1.65 43.2 0.20 5.35 0.57 14.9 1996 8.76 4.55 3.84654 0.96 24.9 0.42 11.0 1.67 43.4 0.21 5.36 0.59 15.3 1997 8.51 4.37 3.75908 0.92 24.3 0.42 11.2 1.65 43.9 0.19 5.10 0.58 15.4 1998 8.12 4.05 3.76442 0.90 24.0 0.42 11.2 1.68 44.6 0.19 5.16 0.56 14.9 1999 8.59 4.23 4.04737 0.96 23.8 0.42 10.4 1.86 45.9 0.21 5.30 0.59 14.7 -------------------------------------------------- site=YOSE GROUP=90 -------------------------------------------------- YEAR TM CM RCFM SO4 F_SO4 NO3 F_NO3 OMC F_OMC LAC F_LAC SOIL F_SOIL 1993 18.64 9.26 7.8027 1.97 25.2 0.86 11.0 3.60 46.1 0.43 5.56 0.94 12.1 1994 17.53 8.10 8.1347 1.91 23.5 0.86 10.5 3.98 48.9 0.45 5.50 0.94 11.5 1995 17.80 8.27 8.5276 1.89 22.2 0.86 10.0 4.35 51.0 0.46 5.39 0.97 11.4 1996 18.38 8.06 9.5573 1.84 19.3 0.86 8.96 5.33 55.8 0.55 5.75 0.97 10.2 1997 17.84 7.70 9.3521 1.69 18.1 0.86 9.15 5.22 55.8 0.52 5.56 1.07 11.4 1998 17.67 7.47 9.5813 1.76 18.4 0.86 8.93 5.30 55.3 0.53 5.55 1.14 11.9 1999 19.11 7.16 11.3634 1.63 14.3 0.86 7.53 7.10 62.5 0.66 5.78 1.12 9.85