Site_ID Site NH4NO3_Replacement_Val N StartYr EndYr Replacement_Method (ug/m3) 1 ACAD1 0.2776 3 1997 1999 97-99 weighted 167 ARCH1 0.5074 406 1988 1992 88-99 un-weighted 59 BADL1 0.4519 3 1997 1999 97-99 weighted 33 BAND1 0.2061 3 1997 1999 97-99 weighted 31 BIBE1 0.2319 3 1997 1999 97-99 weighted 95 BLIS1 0.2786 5 1991 1996 88-99 weighted 23 BOWA1 0.5224 1 1997 1997 97-99 weighted 49 BRCA1 0.2295 3 1997 1999 97-99 weighted 65 BRID1 0.1261 3 1997 1999 97-99 weighted 5 BRIG1 0.7629 2 1997 1999 97-99 weighted 50 CANY1 0.2015 3 1997 1999 97-99 weighted 18 CHAS1 0.4058 2 1997 1998 97-99 weighted 39 CHIR1 0.1678 3 1997 1999 97-99 weighted 145 COGO1 0.5135 207 1996 1998 97-99 un-weighted 113 CORI1 0.5120 3 1997 1999 97-99 weighted 86 CRLA1 0.0947 3 1997 1999 97-99 weighted 102 DENA1 0.0466 2 1997 1998 97-99 weighted 109 DOLA1 0.6886 65 1996 1998 97-99 un-weighted 8 DOSO1 0.4089 3 1997 1999 97-99 weighted 19 EVER1 0.6581 2 1989 1990 88-99 weighted 42 GICL1 0.1247 3 1997 1999 97-99 weighted 72 GLAC1 0.1988 3 1997 1999 97-99 weighted 117 GRBA1 0.1457 3 1997 1999 97-99 weighted 171 GRCA1 0.1896 1 1997 1997 97-99 weighted 48 GRCA2 0.1744 1 1999 1999 97-99 weighted 4 GRGU1 0.1050 122 1996 1999 97-99 un-weighted 53 GRSA1 0.1753 3 1997 1999 97-99 weighted 10 GRSM1 0.2776 3 1997 1999 97-99 weighted 32 GUMO1 0.2575 3 1997 1999 97-99 weighted 107 HAVO1 0.0718 3 1989 1991 88-99 weighted 118 INGA1 0.2173 1 1999 1999 97-99 weighted 173 ISRO1 0.4610 176 1988 1991 88-99 un-weighted 68 JARB1 0.1125 2 1998 1999 97-99 weighted 174 JEFF1 0.5133 247 1996 1999 97-99 un-weighted 175 JOTR1 1.5474 67 1991 1992 88-99 un-weighted 90 LAVO1 0.1661 3 1997 1999 97-99 weighted 116 LOPE1 0.5732 286 1996 1999 97-99 un-weighted 3 LYBR1 0.4414 3 1997 1999 97-99 weighted 176 LYND1 1.2639 61 1996 1997 97-99 un-weighted 9 MACA1 0.5548 2 1997 1999 97-99 weighted 125 MEAD1 0.2131 63 1991 1992 88-99 un-weighted 54 MEVE1 0.1449 3 1997 1999 97-99 weighted 2 MOOS1 0.2721 3 1997 1999 97-99 weighted 78 MORA1 0.1749 3 1997 1999 97-99 weighted 58 MOZI1 0.1453 301 1996 1999 97-99 un-weighted 81 NOCA1 0.2634 65 1997 1998 97-99 un-weighted 16 OKEF1 0.3468 2 1997 1998 97-99 weighted 41 PEFO1 0.1951 3 1997 1999 97-99 weighted 92 PINN1 0.9032 2 1997 1999 97-99 weighted 91 PORE1 0.8705 2 1998 1999 97-99 weighted 165 PUSO1 0.6290 3 1997 1999 97-99 weighted 88 REDW1 0.2867 3 1997 1999 97-99 weighted 182 RMHQ1 0.4093 1 1989 1989 88-99 weighted 15 ROMA1 0.4327 2 1997 1999 97-99 weighted 57 ROMO1 0.2064 3 1997 1999 97-99 weighted 99 SAGO1 2.6153 1 1999 1999 97-99 weighted 40 SAGU1 0.4533 4 1989 1992 88-99 weighted 98 SEQU1 1.6217 2 1997 1999 97-99 weighted 6 SHEN1 0.4351 3 1997 1999 97-99 weighted 11 SHRO1 0.1970 1 1997 1997 97-99 weighted 21 SIPS1 0.9522 4 1993 1996 88-99 weighted 80 SNPA1 0.3078 2 1997 1998 97-99 weighted 186 SOLA1 0.3518 94 1996 1997 97-99 un-weighted 187 STPE1 0.2312 56 1993 1994 88-99 un-weighted 47 SYCA1 0.2451 71 1991 1992 88-99 un-weighted 84 THSI1 0.1130 3 1997 1999 97-99 weighted 44 TONT1 0.3175 3 1997 1999 97-99 weighted 27 UPBU1 0.9383 3 1997 1999 97-99 weighted 106 VIIS1 0.3498 88 1998 1999 97-99 un-weighted 24 VOYA1 0.6046 512 1988 1993 88-99 un-weighted 120 WASH1 1.6157 1 1997 1997 97-99 weighted 55 WEMI1 0.1101 3 1997 1999 97-99 weighted 66 YELL1 0.1398 2 1997 1999 97-99 weighted 189 YELL2 0.1398 2 1997 1999 88-99 weighted 96 YOSE1 0.3862 3 1997 1999 97-99 weighted