Ecotoxicology deals with the ecological effects of toxic substances in the environment. Internationally acceptable methods for testing of organisms referred to as 'biological monitoring' are being developed. Biological monitoring is the use of living organisms to determine presence, amounts, changes in toxic compounds, and effects of both abiotic and biotic factors in the environment. Biological monitoring provides information that is useful for setting standards which can provide a warning for any changes that may occur in an ecosystem. This information is deemed critical in making policy decisions and developing sound strategies for controlling pollution.
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