Derivation method for wildlife protection water quality standard of dieldrin

Abstract

The invention discloses a derivation method for a wildlife protection water quality standard of dieldrin.The method comprises the steps that firstly, a tissue residue standard of cumulative substances is derived through a toxicity percentage ranking method; secondly, a biological cumulative factor of a representative species is selected, and the tissue residue standard is converted into a water quality standard; finally, the water quality standard for wildlife protection in China is determined according to the content level of the substance in a water body in China.According to the method, the biological cumulativity and effectiveness of the dieldrin are taken into account, and a direct support role can be supplied to water environment management and risk evaluation in China.

Description

technical field [0001] The invention belongs to the technical field of water quality safety evaluation, and in particular relates to a method for deriving water quality standards for the protection of wild organisms by dieldrin. Background technique [0002] Water quality standards are the scientific basis for water environment management and play an irreplaceable role in environmental management. Water quality benchmarks are the basis for scientific determination of water quality standards, and are research hotspots in the field of environment. Bioaccumulative and persistent pollutants can bioaccumulate through the food chain, thus causing serious harm to wild organisms with high trophic levels. Water quality benchmarks for a variety of pollutants have been intensively studied, but traditional water quality benchmarks are derived using water-based toxicity data. For substances with bioaccumulative properties, the accumulative effect of organisms on the substance and the b...

AI Technical Summary

Problems solved by technology

The evaluation factor method uses the most sensitive toxicity data and has a large uncertainty

However, the species sensitivity distribution method requires more toxicity data, and because the toxicity data of wild organisms is less, it generally cannot meet the needs of fitting the sensitivity distribution.

[0004] As for the water quality standard for the protection of wild life by dieldrin, the data on the toxicity of dieldrin to wild life has not been used to derive the water quality standard for the protection of wild life by dieldrin, so it is difficult to obtain a more effective water quality for the protection of wild life by dieldrin Standard data, and thus can not protect wildlife well

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