. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. ATMOSPHERIC DEPOSITION TRENDS IN ILLINOIS 100 (0 O + (0 C o o 'E (0 I" S o ^ z o + (D Q. + I 90 80 70 60 50. Percentile Avg (Range) () () () () () () () All Illinois Sites Figure 5. Distribution of the ratios (in percent) of the sum of concentrations of five ions (H*, SO^', NOj, NH/, and Ca**) to the
. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. ATMOSPHERIC DEPOSITION TRENDS IN ILLINOIS 100 (0 O + (0 C o o 'E (0 I" S o ^ z o + (D Q. + I 90 80 70 60 50. Percentile Avg (Range) () () () () () () () All Illinois Sites Figure 5. Distribution of the ratios (in percent) of the sum of concentrations of five ions (H*, SO^', NOj, NH/, and Ca**) to the total measured inorganic ion concentrations in individual Illinois samples. The percentage values at seven reference percentiles in the distribution are listed, along with the range of percentages at the eight Illinois sites, when ranked separately (see table 1 for a list of sites). 167. 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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