元素磷对鱼类生化毒性影响的研究

Research on Biochemical Toxicity Effect of Phosphor on Fishes

通过对含有元素磷的水体中鱼类的血清胆碱酯酶和三磷酸腺苷(ATP)酶活性的测定,发现元素磷对上述两类酶的活性有一定的抑制作用。当抑制率为40%～70%时,即可导致鱼类亚急性中毒死亡。结果表明:元素磷不但是一种剧毒物质,能引起鱼类的急性中毒,而且是一种稳定的可积累的毒物,它能破坏鱼类的肝细胞,抑制正常代谢,造成神经毒性,以致引起鱼类的亚急性和慢性中毒死亡。

By assaying the activity of serum cholinesterase and ATPase of fishes in the water which contains phosphor, it is found there are a little inhibition to the above two enzymes. As the ratio of inhibition is 40—70%, it will lead fish to be subacute poisoning The result shows phosphor is not only a strong toxicant which can lead fish to be acute toxicity, but also a stable accumulatable toxicant which will destroy fish liver ceils, inhibit fish normal metabolism, poison fish nerve and thus leading fish to die by subacute toxicity and chronic toxicity.