Relationship between water solubility of chlorobenzenes and their effects on a freshwater green alga期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Relationship between water solubility of chlorobenzenes and their effects on a freshwater green alga

Authors:	PTS Wong YK Chau JS Rhamey M Docker

Institution:	1. Fisheries and Oceans, Great Lakes Fisheries Research Branch, Canada;2. National Water Research Institute, Canada Centre for Inland Waters, Burlington, Ontario, L7R 4A6 Canada;3. University of Guelph, Guelph, Ontario, N1G 2W1, Canada

Abstract:	The effective concentrations of benzene and 12 chlorobenzenes that reduced 50% of the primary productivity (EC₅₀) of a freshwater green alga, $Ankistrodesmus falcatus$ , were determined. Benzene was the least toxic chemical and the toxicity increased as the degree of chlorine substitution in the aromatic ring increased. No EC₅₀ value could be obtained for HCB. A quantitative relationship was found to exist between water solubility, lipophilicity and the EC₅₀. A good correlation was also observed between the EC₅₀ for this alga and other toxicity data for various aquatic biota.

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