. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. 1901 1911 1921 1931 1941 1951 1961 1971 1981 First Year of 5-Year Period -*- MOLINE PEORIA -^- CHICAGO Figure 35. Average number of days per five years with glaze (freezing precipitation) at Chicago, Moline, and Peoria, IL, ] 901-1990. 120. T—I 1 1 1 1 1 1—; 1 1 1 1 1—I 1 1 r 1901 1911 1921 1931 1941 1951 1961 1971 1981 First Year of 5-Year Period SPRINGFIELD ST. LOU IS -^- EVANSVILLE Figure 36. Ave
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. 1901 1911 1921 1931 1941 1951 1961 1971 1981 First Year of 5-Year Period -*- MOLINE PEORIA -^- CHICAGO Figure 35. Average number of days per five years with glaze (freezing precipitation) at Chicago, Moline, and Peoria, IL, ] 901-1990. 120. T—I 1 1 1 1 1 1—; 1 1 1 1 1—I 1 1 r 1901 1911 1921 1931 1941 1951 1961 1971 1981 First Year of 5-Year Period SPRINGFIELD ST. LOU IS -^- EVANSVILLE Figure 36. Average number of days per five years with glaze (freezing precipitation) at Springfield. IL; St. Louis, MO; and Evansville. IL, 1901-1990. 47. 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
