Method for analog computation of concentration of pollutant in sensitive area

Abstract

The invention discloses a method for analog computation of concentration of a pollutant in a sensitive area. The method is as follows: 1) establishing a coordinate system according to the position of a predicted point of the sensitive area, and determining the position of a non-point source pollution source and coordinates of the predicted point; 2) determining the surface source height of the pollution source; determining the wind speed at a discharge site according to the surface source height; 4) determining diffusion parameters; 5) establishing a diffusion model, and inversely calculating emission source intensity of the pollutant according to the concentration of the pollutant at a monitoring point; 6) positively calculating the concentration of the pollutant at the predicted point according to the emission source intensity, and superimposing environmental background value to obtain the actual concentration value of the predicted point; and 7) comparing the positively-calculated concentration, obtained in the step 6), of the pollutant at the predicted point and a environmental standard to judge whether the concentration of the pollutant exceeds the standard. The concentration of the pollutant can be in real time monitored by means of an air automatic monitoring station built in the periphery of an industrial park. By setting up of the pollutant diffusion model, a calculation scheme for the concentration of the pollutant in the sensitive area can be formed, and diffusion of the pollutant in the industrial park can be forecasted and warned when emission source intensity is unknown.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, in particular to a method for simulating and calculating the concentration of pollutants in sensitive areas. Background technique [0002] With the development of the country, the awareness of environmental protection from the people to the government is getting stronger and stronger, and environmental monitoring is an important part of environmental protection. However, the data of the concentration of pollutants in the atmosphere measured by the current automatic monitoring station is mainly used as an early warning of exceeding the standard, and the applicability is not strong, and most of the current predictions directly refer to the concentration data of the pollutant discharge outlets of enterprises as the source strength. Diffusion simulations were studied. However, in the early stage of industrial park construction and when the enterprise sewage data is not connected, th...

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Problems solved by technology

However, the data of the concentration of pollutants in the atmosphere measured by the current automatic monitoring station is mainly used as an early warning of exceeding the standard, and the applicability is not strong, and most of the current predictions directly refer to the concentration data of the pollutant discharge outlets of enterprises as the source strength. Diffusion modeling for research

However, in the early stage of industrial park construction and when the enterprise sewage data is not connected, the source strength is unknown information, so it is impossible to establish an accurate and effective model

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