以水蚤为指示生物探究铵盐的急性毒性

Exploring the Acute Toxicity of Ammonium Salt Using Water Flea as Indicator Organisms

硫酸铵、氯化铵在日常生产生活中应用较为广泛, 可作为氮肥在农田中使用, 也可作为其他化工产品的原料在工厂中使用。在降水等因素作用下, 该类化合物进入自然水体后可对水生态产生一定的影响。本文以水蚤为指示生物探究了硫酸铵、氯化铵的急性毒性。按照《大型溞急性毒性实验方法》 (GB/T16125—2012) 得到了硫酸铵、氯化铵对水蚤急性毒性的24h-LC50值, 分别为469. 9mg/L、546. 7mg/L, 按照毒性等级划分二者均属于微毒范围。

Ammonium sulfate and ammonium chloride are widely used in daily production and life. They can be used as nitrogen fertilizer in agricultural fields and as raw materials for other chemical products in factories. Under the action of precipitation and other factors, these compounds can have a certain impact on water ecology when they enter natural water bodies. In the paper, the acute toxicity of ammonium sulfate and ammonium chloride was investigated using water fleas as indicator organisms. According to GB/T 16125- 2012 test method for acute toxicity of water flea, the 24h-LC50 values of the acute toxicity of ammonium sulfate and ammonium chloride to water flea were 469. 894mg/L and 546. 720mg/L respectively, which were classified as slightly toxic according to the toxicity class.