"NOx Emissions (tons/day, annual average)" "ROG Emissions (tons/day, annual average)" County 1975 1980 1985 1990 1995 2000 2005 2010 1975 1980 1985 1990 1995 2000 2005 2010 Lake 7 8 9 10 10 9 9 8 13 15 18 17 17 16 15 14 "PM10 Emissions (tons/day, annual average)" "CO Emissions (tons/day, annual average)" County 1975 1980 1985 1990 1995 2000 2005 2010 1975 1980 1985 1990 1995 2000 2005 2010 Lake 5 7 10 10 11 12 14 16 122 133 162 163 151 128 120 109