. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. MANUFACTURING. NOx HC CO Figure 19. Percent reduction in tons of emissions per million dollars of output -1973 through 1989. CONCLUSION The number of manufacturing establishments in Illinois slightly decreased between 1968 and 1989. Employment within these finns, however, saw a significant decline. The number of manufacturing employees statewide dropped from million in 1968 to million in 1
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. MANUFACTURING. NOx HC CO Figure 19. Percent reduction in tons of emissions per million dollars of output -1973 through 1989. CONCLUSION The number of manufacturing establishments in Illinois slightly decreased between 1968 and 1989. Employment within these finns, however, saw a significant decline. The number of manufacturing employees statewide dropped from million in 1968 to million in 1989, a reduction of 27%. The value of manufacturing output, on the other hand, increased during this 21 year period. In 1987 dollars, ouq)ut rose from $117 billion to $127 billion, an increase of almost 9%. Within several counties and metropolitan statistical areas (MSA's), striking changes took place over the twenty years. Cook County and the Davenport/Rock Island/Moline and St. Louis MSA's experienced significant losses, with output in Cook County and the St. Louis MSA declining by 15% and in the Davenport/Rock Island/Moline MSA by 9%. In the collar counties, output increased, with DuPage County leading at 431%, followed by McHenry County at 183% and Lake County at 135%. In the university MSA's of ChampaignAJrbana/Rantoul and Bloomington/Normal, both employment and output increased, with output up 358% and 171%, respec- tively. Emissions data for 1973 through 1989, available from the lEPA shows that emissions of criteria air pollutants are down, particularly particulates. Emissions of particulates are down 87%; sulfiu" oxides, 67%; nitrogen oxides, 69%; hydrocarbons, 45%; and carbon monoxide, 59%. Emissions per dollar of output are also down, with particulates and sulfur dioxide again in the lead, illustrating gains in manufacturing efficiency. 12. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
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