The traditional method of ecological pollution risk assessment in nearshore waters can only collect pollutant concentrations.Therefore,a nearshore ecological pollution risk assessment method based on rough set GRNN algorithm is designed.Collect information on pollutant concentration,environmental factors,and spatial coordinates from historical monitoring data,and calculate the migration time of pollutants from the discharge outlet to the monitoring point.Determine the scope of impact of different pollutants,and formulate corresponding environmental protection measures for different risk levels.The experimental results show that the designed ecological pollution risk assessment method based on rough set GRNN algorithm is correct for the selected 6 risk levels of nearshore waters,and the output values of the model are all lower than the standard ecological threshold,with a maximum difference of 0.2.This proves that the proposed method has higher accuracy and better comprehensive performance.
维普
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