Method and device for obtaining criteria priority research pollutant of water environment

Abstract

The invention discloses a method and a device for obtaining the criteria priority research pollutant of a water environment. The method comprises the following steps: utilizing a published optimal-control pollutant list to obtain a target pollutant list corresponding to a target drainage basin area; on the basis of a water environment criteria data screening specification, collecting qualified water ecology acute toxicity data, on species, of target pollutant; calculating a geometric mean of the qualified water ecology acute toxicity data, on the same species, of the target pollutant to obtain the average acute values of the species; obtaining a geographical distribution area to which each species belongs, and classifying the obtained average acute values of the species; sorting the classified average acute values of the species; independently fitting the sorted average acute values of the species to obtain a concentration value of the pollution which harms 5% of biology; and utilizing the obtained concentration value of the pollution which harms 5% of biology to carry out difference significance analysis, and obtaining the criteria priority research pollutant according to a difference significance analysis result. When the method and the device are applied, technical supports can be provided for regional water environment management.

Description

technical field [0001] The invention relates to water environment ecological technology, in particular to a method and device for obtaining water environment benchmarks and preferentially studying pollutants. Background technique [0002] Water is a resource that every species on earth depends on for survival. With the increasing population, the per capita water resources are decreasing. At the same time, with the rapid development of modern industrial and agricultural economy, the water environment is facing serious threats of various pollution, such as domestic sewage, factory chemical pollution, sewage discharge Waste and excessive pesticides and fertilizers applied on farmland. That is to say, while the per capita water resources are decreasing, the water quality and functional water shortages caused by the deterioration of the water environment are also becoming more and more prominent, which has become a prominent and global common technical problem. [0003] At pres...

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Problems solved by technology

However, at present, my country has not yet proposed how to obtain water environment benchmark pollutants for the protection of ecosystems and biodiversity. As a result, there are many types and quantities of pollutants in water environment benchmark research, and the results are not great.

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