. Annual program report, 1989. Acidic Precipitation in Ontario Study; Acid precipitation (Meteorology); Acid pollution of rivers, lakes, etc; Acid rain. - 6 - (A) 3500. ^ 500 71 72 73 74 75 76 77 78 79 YERR 81 8? 83 84 85 (B). 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 Acidic Precipitation in Ontario Study; Ontario. Ministry of the Environment. [Toronto] : Ministry of the Environment, A. P. I. O. S. Coordination Office

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