Environmental Statistics

Section 5.  Air Quality

Table Title	HTML	Excel
Table 5.1  U.S. Emissions of Carbon Monoxide by Source, Ten-Year Intervals, 1940-1980, and Annually, 1989-1998	5.1	5.1
Table 5.2  U.S. Emissions of Nitrogen Oxides by Source, Ten-Year Intervals, 1940-1980, and Annually, 1989-1998	5.2	5.2
Table 5.3  U.S. Emissions of Volatile Organic Compounds by Source, Ten-Year Intervals, 1940-1980, and Annually, 1989-1998	5.3	5.3
Table 5.4  U.S. Emissions of Sulfur Dioxide by Source, Ten-Year Intervals, 1940-1980, and Annually, 1989-1998	5.4	5.4
Table 5.5  U.S. Emissions of Particulate Matter (PM-10) by Source, Ten-Year Intervals, 1940-1980, and Annually, 1989-1998	5.5	5.5
Table 5.6  U.S. Emissions of Miscellaneous and Natural Particulate Matter (PM-10) by Source, 1989-1998	5.6	5.6
Table 5.7  U.S. Emissions of Lead by Source, Five-Year Intervals, 1970-1980, and Annually, 1989-1998	5.7	5.7
Table 5.8  U.S. Emissions of Greenhouse Gases by Gas, Based on Global Warming Potential, 1990-1999	5.8	5.8
Table 5.9  U.S. Precipitation Chemistry by Region, 1985-1998	5.9	5.9
Table 5.10  U.S. National Composite Mean Ambient Concentrations of Criteria Air Pollutants, 1979-1998	5.10	5.10
Table 5.11  Number of Days with Air Quality Index (AQI) Values Greater Than 100 at Trend Sites, 1989-1998	5.11	5.11
Table 5.12  Number of People Living in U.S. Counties with Air Quality Concentrations Above the Level of the National Ambient Air Quality Standards, 1986-1998	5.12	5.12
Table 5.13  U.S. Population Living in Areas Designated as Nonattainment For At Least One of the Criteria Pollutants, 1991-1999	5.13	5.13

Online Sources of Air Quality Statistics

Air Quality Conditions and Trends