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Exposure Year People (millions) Percent of U.S. Resident Population U.S. Resident Population (millions) 1975 7.0 3.2 215.5 1980...Excel | CSV
Unknown R1970-79 R1980-89 R1990 R1995 1996 1997 1998 Total 1970-98 Type I barriersa 6d 102 419 44 87 34 47 114 1,146 Type II barriersb 0 70 128 19 32 15 31 22 391 All other typesc N 2 28 0...Excel | CSV
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Total Confirmed releases 87,528 127,195 184,457 237,022 270,567 303,635 317,488 341,773 371,387 397,821 Cleanups initiated 51,770 79,506...Excel | CSV
Source 1985 1990 1995 1996 1997 1998 1999 Incidents Gallons Spilled Incidents Gallons Spilled Incidents Gallons Spilled Incidents Gallons Spilled Incidents Gallons Spilled Incidents Gallons...Excel | CSV
1960 1965 1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 Air Certificated...Excel | CSV
Sector 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Industrial 454.8 444.1 461.6 461 471 469.2 483.8 489.7 480.2 481.2 Residential 254.2 259 258.6...Excel | CSV
Ref. no. States Consolidated nonattainment area name a Number of areas in nonattainment c Area...Excel | CSV
All sites Trend sites Total number of sites AQI days > 100 (1998) Number of trend sites...Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 Transportation ...Excel | CSV
1970 1975 1980 1985 1990 1995 1996 1997 1998 Transportation On-road vehicles 0.41 0.50 0.52 0.52 0.54 0.30 0.32...