An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
(Million metric tons of carbon)
Excel | CSV
Sector 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000P IndustrialR 452.7 439.8 455.1 452.9 463.3 461.1 476.1 481.5 469.5 465.8 465.7 ResidentialR...(Condensed nonattainment area list as of September 2000)
Excel | CSV
Ref. no. States Consolidated nonattainment area name a Number of areas in nonattainmentc,d Area...(Number of days with AQI values greater than 100 at trend sites and all monitoring sites)
Excel | CSV
All sites Trend sites Total number of sites AQI days > 100 (...(Thousand short tons)
Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 TOTAL all sources 220.87 159.66 74.15 22.89 14.76 7.68 7.05 5.47 4.98 4.17...(Million short tons)
Excel | CSV
1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Transportation ...(Million short tons)
Excel | CSV
1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 TOTAL all sources 7.96 7.74 7.65 7.33 7.98 7.18 R7.70 R8.06 R7.86 N Transportation ...(Million short tons)
Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 TOTAL all sources 13.04 7.67 7.12 45.45 50.94 42.46 61.07 53.06 R29....(Million short tons)
Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 TOTAL all sources 30.98 26.08 R26.33 24.43 23.62 23.47 24.31 22.51 R21...(Million short tons)
Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 TOTAL all sources 20.93 22.63 24.38 23.20 22.81 23.07 24.12 23.89 R24.17 R24.34...(Million short tons)
Excel | CSV
1970 1975 1980 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 TOTAL all sources 129.44 116.76 117.43 117.01 111.53 110.80 118.73 106.44 R99.12...