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通过毒性试验得出,非离子态氨对美洲鳗鲡的24小时、48小时、96小时的半致死浓度分别为5.6、5.1、4.5mgl~(-1),安全浓度为0.45mgl~(-1)。同时表明当非离子态氨浓度达1.0mgl~(-1)以上时,毒性明显;小于1.omgl~(-1)时,美洲鳗鲡无急性中毒性症状表现。
Toxicity tests showed that the non-ionic ammonia had a median lethal concentration of 5.6, 5.1 and 4.5 mg l -1 at 24 hours, 48 hours and 96 hours, respectively, at a safe concentration of 0.45 mg l -1. . At the same time, the results showed that the toxicity was obvious when the non-ionic ammonia concentration was over 1.0 mgl ~ (-1), and no toxic symptoms were found when the concentration of non-ionic ammonia was less than 1.omgl -1.