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(Thousands)
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1970 1975 1980 1985 1990 1995 1996 1997 1998 1999 2000 2001 2002 TOTAL motor vehicles 8,298 6,576 10,137 9,829 11,073 10,332 10,811 12,509 11,665 11,664 14,299 14,122 13,296 Passenger...(Within 65 dB DNL noise-level contours)
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Year Exposure U.S. resident population (millions) People (thousands) Percent of U.S. resident population 1975 7,000 3.24...Excel | CSV
Unknown 1963-80 1981-89 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Total 1963-2001 TOTAL length 6 224 531 R64 R99 142 R88 89 R129 R54 R88 R129 51 76 69 1,831 Type I barriersa...Excel | CSV
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 Total confirmed releases 87,528 126,816 184,457 237,022 270,567 303,635 317,488 341,773 371,387 397,821 412,392 418,918...Excel | CSV
Source 1985 1990 1995 1996 1997 1998 1999 2000 2001 Incidents Gallons spilled Incidents Gallons spilled Incidents Gallons spilled Incidents Gallons spilled Incidents Gallons spilled...(Million metric tons of carbon)
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Sector 1990 1995 1996 1997 1998 1999 2000 2001 (P) 2002 Total U.S. CO2 Emissions from energy use by sector (R) 1,360.4 (R) 1,433.3 (R) 1,484....Excel | CSV
Ref. no. States Consolidated nonattainment area name a Number of areas in nonattainment d Area population...(Number of days with AQI values greater than 100 at trend sites and all monitoring sites)
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All sites Trend sites Total number of sitesR AQI days > 100 (2003) Number...Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 TOTAL all sources 220.88 159.67 74.16 22.89 14.77 7.68 7.05 5.49 4.98 4.17 3....(Million short tons)
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1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 TOTAL all sources 31.22 28.04 25.93 23.31 22.52 22.27 22.69 22...