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

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.