The use of tetrasul has been banned in Europe since 2003.
Tetrasul becomes toxic for fishes at concentrations above 11 mg/l. As a substance witch bioaccumulates and possibly also biomagnifies there may be risks to marine mammals by secondary poisoning. Mammals which consume more than 3,9 g per kilogram of body weight might be affected. Chronic exposure might cause effects at lower doses.
Environmental standards and legislation
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