Method for forecasting ecological risks of pollutant in surface water environment on living beings

Abstract

The invention discloses a method for forecasting ecological risks of pollutant in surface water environment on living beings. Combined with a non-constant water environment module and a water ecology toxicology comprehensive module, the invention discloses a method for assessing the ecological risks in the surface water environment, which comprises a long-term ecological risks assessing method and an acute ecological risks assessing method. The long-term ecological risks assessing method emphasizes the long-term accumulation effect of the pollutant and also takes the ecological toxicology effect and hydrodynamic and water quality space-time trends characteristics into consideration, which is a comprehensive ecological risk assessment method; and the acute ecological risks assessing method emphasizes the acute ecological risk assessment for the pollutant and provides methodology support for rapid ecological risk assessment in surface water pollution events.

Description

Technical field [0001] The invention relates to a method for predicting the ecological risk of pollutants in the surface water environment to organisms. Background technique [0002] Scientifically predicting the possibility of pollution incidents, clarifying the main control elements of different types of pollution incidents, assessing the degree of pollution, the scope of impact and risk levels that the incident may cause, and carrying out ecological risk assessment are of important research significance. [0003] Ecological risk assessment methods mainly include: extrapolation method based on single species test, micro- and mesocosmic ecosystem simulation method based on multi-species test, and ecological risk model method based on population or ecosystem. The extrapolation technique of single-species testing plays a good predictive role in evaluating the effects of compounds, and can be applied to the risk assessment of the entire ecosystem through certain assumptions, but the ...

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Problems solved by technology

[0004] At present, my country still lacks ecological risk assessment technology, and ecological risk assessment research is in the exploratory stage. Among the existing ecosystem risk assessment models, some models do not consider the spatial characteristics of the study area, and are essentially zero-dimensional models of material balance; The model does not consider the water quality and hydrodynamic characteristics of the study area, and is essentially a static box-type evaluation model; some models only focus on the migration and transformation process of pollutants in multi-media, without considering their ecotoxicological effects; some focus on The content of the evaluation is limited to local factors, without consideration from a comprehensive perspective; there are also some models that only focus on the long-term cumulative effect of pollutants, with a large amount of calculation, and cannot take into account the two needs of long-term cumulative evaluation and acute "quick and effective" evaluation

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