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Title

Levels of Non-Nutritive Substances In Fertilizers (Historical)

 
Publication number Date Published
99-450December 1999
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Author(s) Department of Agriculture
Description Report describes legislation which protects human health and the environment by creating regulatory standards for nine heavy metals commonly found in commercial fertilizers (arsenic, cadmium, cobalt, lead, mercury, molybdenum, nickel, selenium and zinc). These standards set limits for the annual loading (addition) of these metals to soils in Washington. Washington is first state to set clear, scientifically defined standards designed to identify and minimize contaminants in fertilizers. Since the passage of the Act, only fertilizers that meet the Washington metals standards have been registered by the Department of Agriculture for distribution in the state.
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Keywords soil, report, health, waste, zinc, lead, fertilizer, agriculture