. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. FLOWING WATERS 2S0000O 2000000 1500000 -. 1000000 -- 500000. 2500000 - - 2000000 -- 1500000 1000000 -- 500000 O Q O > YEAR. 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; Criti
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. FLOWING WATERS 2S0000O 2000000 1500000 -. 1000000 -- 500000. 2500000 - - 2000000 -- 1500000 1000000 -- 500000 O Q O > YEAR. 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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Keywords: ., bookcentury1900, booksubjecte, booksubjectecology, booksubjectman
