. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. AGRICULTURAL LANDS 100 -- 90 -- 80 -- 70 -- 60 -â 50 -â 40 â - 30 â - 20 -- 10 - 0 HERBICIDE i++4HHHt. 1945 1950 I I i I I I I I I I I I I I I I I I I I I l I I I I I I I I I 1955 1960 1965 1970 1975 1980 1985 Figure 23. Estimated percentage of corn acreage receiving pesticide applications in Illinois, 1945-1985. The curx'es were drawn to fit data collected in 1952, 1958, 1966, 1971, 1976, and 1985.
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. AGRICULTURAL LANDS 100 -- 90 -- 80 -- 70 -- 60 -â 50 -â 40 â - 30 â - 20 -- 10 - 0 HERBICIDE i++4HHHt. 1945 1950 I I i I I I I I I I I I I I I I I I I I I l I I I I I I I I I 1955 1960 1965 1970 1975 1980 1985 Figure 23. Estimated percentage of corn acreage receiving pesticide applications in Illinois, 1945-1985. The curx'es were drawn to fit data collected in 1952, 1958, 1966, 1971, 1976, and 1985. Source: Department of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Dept. of Energy and Natural Resources; Critical Trends Assessment Project. Springfield, Ill. : Ill. Dept. of Energy and Natural Resources
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