Question

9. What is rotenone, what is its source, what are its uses, and what are its biological effects? What concentration levels are normally used? What concentrations affect various species of finfish? 10. What ammonia levels are considered normal in an estuarine system? What types of toxic effects can it cause? At what concentration levels? 11. How is the toxicity of ammonia affected by pH? Why? 12. What fluoride ion concentration is normally found in natural water supplies? Why is it often added to drinking water? 13. What effects do fluoride ions have on finfish? At what concentrations?

Answer 1

ROTENONE Rotenone is an odorless, colorless isoflarvenre used as abroad. Spectrum insecticide, pesticide, and pesticide. If occurs naturally in the seeds and stems of several plants such as the ticama vine plant, and the roots of several members of Fabaecal. Formula: C_23H_22O_6 Source It Occurs naturally in the seeds and the jicama vine plant, and the roots of several members of fabaceae. Uses: - Rotenone is used as a pesticide, insecticide and as a nonselective (Fish Killes) Rotenone has historically been used by indigenous has to catch fish. Rotenone is also used in powdered from to treat scables, and head lice on humans of parasitic mites on livestock of pet animals. It has been used as an organic pesticide dust for gardens. \r\n Biological Effects: - Rotenone is classified by the world health organizations as moderately hazardous. It is mildly toxic to humans and other mammals, but life, including fish. This higher toxicity in fish and insect is because the lipophilic rotenone is easily taken up through the gills as trachea.