Acute and Chronic Toxicity of Azinphos-Methyl to Two Estuarine Species, Mysidopsis bahia and Cyprinodon variegatus

被引：0

作者：

M. G. Morton

F. L. Mayer, Jr.

K. L. Dickson

W. T. Waller

J. C. Moore

机构：

[1] U.S. Environmental Protection Agency Region 6,

[2] 1445 Ross Avenue,undefined

[3] Dallas,undefined

[4] Texas 75202,undefined

[5] USA ,undefined

[6] Gulf Ecology Division (ORD/NHEERL) U.S. Environmental Protection Agency,undefined

[7] Sabine Island,undefined

[8] Gulf Breeze,undefined

[9] Florida 32561,undefined

[10] USA ,undefined

[11] University of North Texas,undefined

[12] Institute of Applied Sciences,undefined

[13] P.O. Box 13078,undefined

[14] Denton,undefined

[15] Texas 76203,undefined

[16] USA ,undefined

来源：

Archives of Environmental Contamination and Toxicology | 1997年 / 32卷

关键词：

Toxicity; Endpoint; Chronic Toxicity; Test Species; Estuarine Species;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The acute and chronic toxicity of azinphos-methyl (Guthion) was evaluated for two estuarine species in the laboratory. Mysids (Mysidopsis bahia) and sheepshead minnows (Cyprinodon variegatus) were selected as the representative invertebrate and vertebrate estuarine test species, respectively. The toxicological endpoints determined for each species included the 96-h LC50, the no-observed-effect concentration (NOEC), the maximum acceptable toxicant concentration (MATC), and the acute-to-chronic ratio. The 96-h LC50 value derived for sheepshead minnows (2.0 μg/L) was seven times higher than the 96-h LC50 value (0.29 μg/L) derived for mysids. The MATCs were 0.024 μg/L and 0.24 μg/L for the mysid and the sheepshead minnow, respectively. The estimated acute-to-chronic ratios were 12 for mysids and 8.3 for sheepshead minnows.

引用

页码：436 / 441

页数：5