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FIPSST:
FIPs state code
FIPSCNTY: FIPs county code
POLLUT: pollutant name as described below
NOx - oxides of nitrogen;
tons per year
VOC - volatile organic
compounds; tons per year
PM10 - directly emitted
particulate matter <10 µm; tons per year
SO2 - sulfur dioxide;
tons per year
CO - carbon monoxide;
tons per year
NOXOSD - oxides of
nitrogen; tons per typical ozone season day
VOCOSD - volatile organic
compounds; tons per typical ozone season day
1996VMT - millions
of vehicle miles traveled in 1996 See
Reference
1990POP - population
in 1990
1996REG - number of
vehicles registered in 1996
POINT: non-utility point source emissions
UTILITY : utility emissions
AREA: area source emissions
MOTOR: highway vehicle mobile source emissions
OFFHIGHW: off-highway mobile source emissions
TOTAL : total county emissions, population, VMT,
or registered vehicles
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