. Biogeochemistry project update : snow cores 1989-1992 : Plastic Lake & Harp Lake : report. Acid rain; Snow. 0 -1 -2 -3 -4 â -5 -6 50 40 30 PLASTIC LAKE SNOW CHEMISTRY 1990/91. 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 Findeis, J. G; Ontario. Water Resources Branch. [Toronto] : Water Resources Branch, Ontario Ministry of Environment and Energy

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Keywords: ., bookcentury1900, bookleafnumber17, booksubjectac, booksubjectsnow