Water quality model based regional environment risk assessment method

Abstract

The invention provides a water quality model based regional environment risk assessment method. The water quality model based regional environment risk assessment method includes five steps of establishing a regional environment risk source information database, and utilizing a Monte Carlo algorithm to simulate discharge of risk source pollutants; selecting a water quality model, and constructing a water quality model which meets characteristics of an assessment region source intensity water quality response relationship; calculating vulnerability indexes of risk receptors by using a fuzzy integral method with the risk assessment goal of influence on water ecology, human health and social economy; utilizing the water quality model to predict the distribution of regional pollutant concentration under all possible source intensity situations, and analyzing dangerousness of risk sources; characterizing regional environment risks with a risk curve under the synthesis of dangerousness of the risk sources and vulnerability indexes of the receptors. According to the risk curve, regional environment risk assessment can be performed, high-risk regions, and key risk sources and vulnerary receptors are identified, so that a reference is provided for planning a targeted region risk prevention and control scheme.

Description

technical field [0001] The invention belongs to a regional environmental risk assessment method based on a water quality model, and is a method for quantitatively characterization and evaluation of regional environmental risk by obtaining a regional environmental risk curve according to a water quality model simulation result. It is applicable to the comprehensive assessment of the water environment risk of a river basin or a certain area. Background technique [0002] Point sources, area sources, and flow sources are the main sources of regional environmental health threats. Pollutants emitted by human activities directly affect aquatic ecological security, and ultimately affect human health and social and economic development. Risk assessment, which uses quantitative analysis methods to systematically explore potential environmental problems, is a commonly used and effective environmental management technique. Looking at the current regional-scale water environment risk ...

AI Technical Summary

Problems solved by technology

Looking at the current regional-scale water environment risk assessment methods, generally only the risk assessment index system is used to assess the regional risk level. Conclusions are also highly subjective and arbitrary

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