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Chronic effects of low levels of hydrogen sulfide on freshwater fish
Smith Jr., L.L. (1974). Chronic effects of low levels of hydrogen sulfide on freshwater fish, in: Proceedings of the 7th International Conference on Water Pollution Research, Paris, France, September 9-13, 1974. pp. 113-121
In: (1974). Proceedings of the 7th International Conference on Water Pollution Research, Paris, France, September 9-13, 1974. Pergamon Press: Paris, more

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Keyword
    Fresh water

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  • Smith Jr., L.L.

Abstract
    Comparison of LC50 levels of hydrogen sulfide with those which have adverse effects after long exposure indicates that the 96-hr LC50 may be 3 to 8 times higher than the safe levels. The present work, and that of Smith and Oseid (1974), who examined the effect of hydrogen sulfide on early life history stages of 8 species of freshwater fish, slow that a safe level of hydrogen sulfide which will insure survival and growth of a fish population, and adequate survival of all life history stages will generally be between 0.002 and 0.004 mg/1 at 20 °C. In bluegills, the level is significantly lower, and this pattern may be followed in other species not rested.

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