Cd is an extremely toxic heavy metal even in low concentrations. Arsenic is a naturally occurring semi-metal found on the earths crust. Study On The Treatment Of Sudden Cadmium Pollution In Surface Water By A Polymer Enhanced Ultrafiltration Process Rsc Advances Rsc Publishing Doi 10 1039 D0ra10818a As given in the question low cadmium level negatively affect the steelhead trout. . Drinking water levels which are. Like all metals cadmium can move from one environmental compartment to another eg. In a survey in the Netherlands about 99 of drinking-water samples in 1982 contained less than 01 µglitre. Based on the then proposed maximum Cd concentration of 10 mgkg for human consumption Cossa 1988 derived a maximum water concentration of around 02 µgL. Further runoff of water containing cadmium is increases so it creates more devastating effect on trout population becouse for flourishing the. These tests did not show a strong ...
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