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某些重金属对砂海螂的急性毒性

Acute toxicities of selected heavy metals to the softshell clam, Mya arenaria.

作者信息

Eisler R

出版信息

Bull Environ Contam Toxicol. 1977 Feb;17(2):137-45. doi: 10.1007/BF01685540.

DOI:10.1007/BF01685540
PMID:843631
Abstract

Static acute toxicity bioassays with adult softshell clams and salts of copper, cadmium, zinc, lead, manganese, and nickel were conducted at 30 0/00 salinity and 22 degrees C. Concentrations fatal to 50% in 168 hours, in mg/l (ppm) metal added at start, were 0.035 for Cu, 0.150 for Cd, 1.55 for Zn, 8.80 for Pb, 300.0 for Mn, and less than 50.0 for Ni. Additional tests were conducted with Zn2+ and Cu2+ at 30 0/00 during fall (17.5 degrees C) and winter (4 degrees C); clams displayed increasing survival with decreasing temperature. For Cu, LC-50 (336 hr) values at 17 degrees C and 4 degrees C were 0.086 and greater than 3.00 mg/l, respectively; for Zn these were 2.65 and greater than 25.0, respectively.

摘要

在盐度为30‰且温度为22摄氏度的条件下，对成年软壳蛤以及铜、镉、锌、铅、锰和镍的盐类进行了静态急性毒性生物测定。开始时添加的金属在168小时内致使50%死亡的浓度，以毫克/升（ppm）计，铜为0.035，镉为0.150，锌为1.55，铅为8.80，锰为300.0，镍小于50.0。秋季（17.5摄氏度）和冬季（4摄氏度）期间在盐度30‰的条件下对锌离子和铜离子进行了额外测试；蛤的存活率随温度降低而增加。对于铜，在17摄氏度和4摄氏度时的LC-50（336小时）值分别为0.086和大于3.00毫克/升；对于锌，这些值分别为2.65和大于25.0。

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本文引用的文献

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