File updated 5/17/2002 4:01:02 PM IMPROVE Parameter List: CODE UNIQUE_CODE UNITS NAME TYPE DESCRIPTION AL AL ug/m3 Aluminum Particles AS AS ug/m3 Arsenic Particles BR BR ug/m3 Bromine Particles CA CAf ug/m3 Calcium: Fine Particles Mass of calcium particles < 2.5 um in diameter CHL CHL ug/m3 Chloride Particles CL CL ug/m3 Chlorine Particles CR CR ug/m3 Chromium Particles CU CU ug/m3 Copper Particles EC1 EC1 ug/m3 Carbon: elemental (EC1) Particles EC2 EC2 ug/m3 Carbon: elemental (EC2) Particles EC3 EC3 ug/m3 Carbon: elemental (EC3) Particles FE FE ug/m3 Iron Particles H H ug/m3 Hydrogen Particles K Kf ug/m3 Potassium: Fine Particles Mass of potassium particles < 2.5 um in diameter MASS MF ug/m3 PM2.5: mass Particles Gravimetric fine mass MASS MT ug/m3 PM10: mass Particles Gravimetric total mass MG MGf ug/m3 Magnesium: Fine Particles Mass of magnesium particles < 2.5 um in diameter MN MN ug/m3 Manganese Particles MO MO ug/m3 Molybdenum Particles N2 N2 ug/m3 Nitrite Particles NA NAf ug/m3 Sodium: Fine Particles Mass of sodium particles < 2.5 um in diameter NH4 NH4f ug/m3 Ammonium ion: Fine Particles Mass of ammonium particles < 2.5 um in diameter NI NI ug/m3 Nickel Particles NO3 NO3f ug/m3 Nitrate: Fine Particles Mass of nitrate particles < 2.5 um in diameter OC1 OC1 ug/m3 Carbon: organic (OC1) Particles OC2 OC2 ug/m3 Carbon: organic (OC2) Particles OC3 OC3 ug/m3 Carbon: organic (OC3) Particles OC4 OC4 ug/m3 Carbon: organic (OC4) Particles OP OP ug/m3 Carbon: organic (OP) Particles P P ug/m3 Phosphorus Particles PB PB ug/m3 Lead Particles RB RB ug/m3 Rubidium Particles S S ug/m3 Sulfur Particles SE SE ug/m3 Selenium Particles SI SI ug/m3 Silicon Particles SO4 SO4f ug/m3 Sulfate: Fine Particles Mass of sulfate particles < 2.5 um in diameter SR SR ug/m3 Strontium Particles TI TI ug/m3 Titanium Particles V V ug/m3 Vanadium Particles ZN ZN ug/m3 Zinc Particles ZR ZR ug/m3 Zirconium Particles BABS BABS 10^-8 m^-1 Light absorption coefficient Optical bext bext Mm-1 Light extinction coefficient Optical bsp bsp Mm-1 Light scattering coefficient Optical AT AT C Air Temperature Meteorology RH RH % Relative Humidity Meteorology TPINT TPINT C Internal instrument temperature Meteorology Internal temperature as recorded inside instrument SO2 SO2 ug/m3 Sulfur Dioxide Gas (NH4)2SO4 ammSO4f ug/m3 Ammonium sulfate Calculated (NH4)2SO4_bext ammSO4f_bext Mm-1 Ammonium sulfate extinction Calculated aerosol_bext aerosol_bext Mm-1 Aerosol extinction Calculated CM CM ug/m3 PM2.5-10: mass Calculated Calculated coarse mass CM_bext CM_bext Mm-1 Coarse mass extinction Calculated dv dv deciview Calculated EC EC ug/m3 Carbon: total elemental Calculated EC_bext EC_bext Mm-1 Elemental carbon extinction Calculated fRH fRH_grid Relative Humidity Factor Calculated NH4NO3 ammNO3f ug/m3 Ammonium Nitrate Calculated NH4NO3_bext ammNO3f_bext Mm-1 Ammonium nitrate extinction Calculated OC OC ug/m3 Carbon: total organic Calculated OC_bext OC_bext Mm-1 Organic carbon extinction Calculated RCFM RCFM ug/m3 Reconstructed Fine Mass Calculated RH RH_grid % Relative Humidity Calculated SOIL SOILf ug/m3 Fine Soil Calculated SOIL_bext SOILf_bext Mm-1 Fine soil extinction Calculated