摘要：We investigated the subacute toxicity of 2 wood preservatives, DDAC (principal component: 37.5% didecyldimethyl ammonium chloride) and BAAC (principal components: 40% DDAC, 13.4% boric acid), in a number of aquatic invertebrates: a green alga (Selenastrum capricornutum), 2 cladocerans ( Ceriodaphnia dubia and Daphnia magna ), 2 fishes ( Danio rerio and Oryzias latipes ), and photobacteria (Microtox®). DDAC and BAAC inhibited biological functions in all of the organisms tested; the order of sensitivity was green alga > cladocerans > fish. Growth of S. capricornutum was inhibited by both preservatives at very similar levels of exposure. DDAC inhibited reproduction in C. dubia at lower levels of exposure than for D. magna , and the reverse was true for BAAC. Both DDAC and BAAC reduced the survival rate of D. rerio at lower exposure levels than for O. latipes . However, phylogenetic class differences in sensitivity to the preservatives were much greater than species differences.
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