Method and device for determining pollutant concentration

Abstract

The invention provides a method for determining pollutant concentration. The method comprises the following steps of: acquiring first to third point information and first to third pollutant concentration data of first to third devices; acquiring all sub-mesh information of a first mesh; calculating first to third distances of each sub-mesh and the first to third devices separately, according to the point information and location information of each sub-mesh; calculating original pollutant concentration data of each sub-mesh according to first data of first area and the location information ofeach mesh; using third correction data of each sub-mesh as its pollutant concentration data according to the first to third distances; determining the original pollutant concentration data of the first mesh according to a preset relationship of the first mesh and all sub-mesh information, and the pollutant concentration data of each sub-mesh; and repeating the above steps, using sixth correction data as the pollutant concentration data of the first mesh. The method for determining the pollutant concentration improves the accuracy of the pollutant concentration data in the meshes.

Description

technical field [0001] The invention relates to the field of data processing, in particular to a method and device for determining the concentration of pollutants. Background technique [0002] With the rapid development of various industries, a large number of harmful substances are produced, such as smoke, sulfur dioxide, nitrogen oxides, carbon monoxide, hydrocarbons, etc. These harmful substances are continuously discharged into the atmosphere. When their content exceeds the limit that the environment can bear, it will destroy the natural physical, chemical and ecological balance, form air pollution, and endanger people's life, work and health. With the emergence of large-scale smog across the country, the term PM2.5 has entered the public eye. PM2.5 refers to particulate matter in the ambient air with an aerodynamic equivalent diameter less than or equal to 2.5 microns. It can be suspended in the air for a long time, and the higher its concentration in the air, the mo...

AI Technical Summary

Problems solved by technology

Due to the large monitoring area and limited manpower and material resources, it brings difficulties to air pollution monitoring

[0007] However, in the prior art, the monitoring area is generally divided according to the administrative unit, such as the city, and the pollutant concentration data obtained in this way is aimed at the administrative unit. For example, the pollutant concentration data of a certain city, due to the The interior also includes small administrative units with different pollution levels, so the determined pollutant concentration data cannot reliably reflect the pollution level of the administrative unit

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