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Surveys of trace contaminants in the St. Clair River, 1985

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Title: Surveys of trace contaminants in the St. Clair River, 1985
Author: Chan, C. H.; Kohli, J.
Abstract: The Water Quality Branch of Environment Canada carried out four water quality surveys on the St. Clair River between August and October of 1985 to determine the ambient concentrations of selected organic contaminants at major confluences of the river. Forty- litre water samples were collected at Point Edward, Port Lambton, Chenal Écarté, the North Channel, the South Channel, and the Detroit River at Peach Island. Water samples were analyzed for organochlorine pesticides, polychlorinated biphenyls, chlorobenzenes, octachlorostyrene, and hexachlorobutadiene. Concentrations of organochlorine pesticides were fairly uniform in the St. Clair River and were similar to those found in Lake Huron water. Concentrations remained in the parts per trillion (ng/L) range. Discharges of industrial chemicals such as hexachlorobenzene, hexachlorobutadiene, and octachlorostyrene, just downstream from Sarnia, were detected at the nanogram per litre range along the Canadian shore at Port Lambton, but not above Sarnia. Chenal Écarté and the South Channel received major portions of the industrial chemicals carried by the St. Clair River.
Date: 1987
Rights: In Copyright - Non-Commercial Use Permitted
Rights Holder: Minister of Supply and Services Canada

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