Method for evaluating chronic toxicity data of clothianidin and difenoconazole to gobiocypris rarus

Abstract

The invention belongs to the technical field of data processing, and discloses a method for evaluating chronic toxicity data of clothianidin and difenoconazole to gobiocypris rarus. The method comprises the following steps: solving the sum S of biotoxicity effects; converting S into an addition index AI according to a Marking addition index method and improvement; evaluating the composite effect of the pesticide by using the AI value, and when -0.2<AI<0.25, determining that the composite effect is an additive effect; when AI is greater than or equal to 0.25, determining that the composite effect is a synergistic effect; and when AI is smaller than or equal to -0.2, determining that the composite effect is an antagonism effect, and the toxicity increasing multiple being equal to AI+1. According to the method, the evaluation of the chronic combined toxicity of the thiamethoxam and difenoconazole compound exposure to the gobiocypris rarus is carried out, a reference is provided for chronic toxicity test of the compound exposure of other different pollutants, and meanwhile, an important technical support is provided for monitoring, early warning and restoration treatment of the compound exposure of the pesticide in the water body.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to a method for evaluating chronic toxicity data of clothianidin and difenoconazole to rare gobicon. Background technique [0002] At present, clothianidin (Clothianidin) belongs to the neonicotinoid insecticides, and its insecticidal mechanism is to inhibit the nicotinic acetylcholine receptors (nAChRs) of the postsynaptic membrane of the insect nervous system and the surrounding nerves, so that the insects remain excited, paralyzed and then died. The insecticide has remarkable characteristics such as high insecticidal activity, wide insecticidal spectrum, and strong persistence, and has become an important variety of insecticides in the world. During the use of clothianidin, usually only 5% can be absorbed by crops, and most of it is dispersed into a wider range of environmental media, and can also enter water bodies, animals, plants and humans through migrati...

AI Technical Summary

Problems solved by technology

[0007] Through the above analysis, the existing problems and defects of the prior art are as follows: At present, the pollutants in the environment are becoming diversified and complex, and all exist in the form of compound pollution

Many ecotoxicological effects cannot be explained by the mechanism of action of a single pollutant, and the relevant evaluation standards formulated in the past relying on the effect of a single pollutant cannot truly reflect the objective requirements of the actual environmental quality

[0008] The difficulty in solving the above problems and defects is: due to the adsorption and accumulation of different pesticides in water, the differences in chemical properties and complex interactions, the previous physical and chemical analysis methods can detect the concentration of pesticides in water, but cannot determine the concentration of pesticides. pollution effect

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