Methods The influencing factors to the effective duration of niclosamide in water and soil was investigated by the snail immersion method and the fish toxicity test .

方法用浸泡杀螺试验和鱼毒试验，观察氯硝柳胺在水体及土壤中持效时间及其影响因素。

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In this paper the toxicity and security of intermediate water were detected with method of bioassays including fish toxicity test, the mouse ear swelling test, and guinea pig skin recover test.

采用鱼类急性毒性实验、小鼠耳肿实验和豚鼠皮肤愈合实验等生物检测技术来检测中水毒性及安全性。

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Monsanto says the protein contained in its maize has selective toxicity but is harmless to humans, fish and wildlife.

孟山都公司说，它的玉米中的蛋白质有选择性毒性，但对人类、鱼类和野生动物无害。

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In 1972, on the basis of data on toxicity to fish and migrating birds (but not to humans), the U.S. Environmental Protection Agency banned virtually all uses of DDT.

FORBES: Beyond Copenhagen

The cycle goes on and the levels of toxicity increases until you get to the top of the food chain with pelagic fish such as swordfish that end up on our dinner plate.

CNN: STORY HIGHLIGHTS