Pesticide freshwater aquatic organism water quality benchmark value derivation method and water quality safety assessment method

Abstract

The invention belongs to the technical field of water quality safety assessment, in particular to a pesticide freshwater aquatic organism water quality benchmark value derivation method and a water quality safety assessment method. The pesticide freshwater aquatic organism water quality benchmark value derivation method disclosed by the invention includes data collection, data screening evaluation, species screening, water quality benchmark derivation and benchmark value checking, when evaluating whether a certain water quality is safe or not, the water quality benchmark value for protecting aquatic organisms is obtained according to the aquatic organism water quality benchmark derivation procedure, and then the concentration value of such pollutants in the surface water source to be detected is detected. If the concentration value is lower than the water quality benchmark value, the water quality is safe, otherwise, the water quality is unsafe. The water quality benchmark derivation method provided by the invention has strong pertinence and wide applicability, and provides a theoretical basis for the environmental protection department to formulate the water quality standard of the pesticide surface water for protecting aquatic organisms in China.

Description

technical field [0001] The invention belongs to the technical field of water quality safety evaluation, and in particular relates to a pesticide freshwater aquatic organism water quality benchmark derivation method and a water quality safety evaluation method. Background technique [0002] The problem of surface water pollution is widespread around the world. With the urgent need for water resources and the gradual emphasis on environmental issues, the monitoring and management of surface water quality has always been the focus of scholars' research. Environmental quality assessment of surface water, as the key to managing surface water quality, is the top priority of research. When evaluating whether the water quality is safe, it is often necessary to judge whether the concentration of various pollutants contained in the evaluated water body is within the required limit. Therefore, quickly and accurately obtaining the safe concentrations of various pollutants in water bodi...

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Problems solved by technology

[0004] At present, the public document "Methods and Techniques for Establishment of Pesticide Aquatic Organism Standards" (P297-309, edited by Zhou Junying and Ge Feng, Science Press, published on November 1, 2014) is dedicated to the derivation of pesticide aquatic organism water quality standards. method, the method involved in the formulation of pesticide water quality standards sets different test species for different types of pesticides, and different types of pesticides require at least 5 species, 10 families and 10 species of biological toxicity data, and the necessary toxic effect data for different types of pesticides is usually not easy. Obtain, such as acaricides and herbicides, such as angiosperm toxicity data, so many types of pesticides cannot obtain their water quality standards and standard formulation due to the lack of plants and effective chronic toxicity data, and their applicability is not strong; at the same time, the pesticide standards The derivation method provides two alternative methods, the species sensitivity distribution curve method and the toxicity percentage ranking method, and the uncertainty of the final benchmark value is relatively large

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