Information obtaining method and information obtaining device

Abstract

The invention discloses an information obtaining method, which comprises the following steps of determining a time period to be analyzed and the preset time interval in the time period to be analyzed,wherein the time period to be analyzed comprises N preset time intervals; then, obtaining the contaminant concentration information set in each preset time interval; next, determining a target concentration value meeting the preset conditions in the contaminant concentration information set as the region background concentration, wherein the region background concentration is the target contaminant concentration value which is simultaneously observed from all monitoring units in the preset designated cell, is from the accumulated contaminants from the upwind direction on the units and is diffused into the cells through transmission; finally, determining the region background concentration in each preset time interval. The method and the device have the advantages that the information reflecting the region background concentration and the information reflecting the local discharge contribution can be distinguished; the discharge responsibility is strictly distinguished; the targeted improvement on atmospheric pollution can be facilitated.

Description

technical field [0001] The present application relates to the field of environmental monitoring, and in particular to an information acquisition method and an information acquisition device. Background technique [0002] With the development of science and technology, air pollution is becoming more and more serious, and even has a greater impact on human health. Typical air pollutants include carbon monoxide (CO), nitrogen monoxide (NO), nitrogen dioxide (NO 2 ), sulfur dioxide (SO 2 ), volatile organic compounds (VOCs), ozone (O 3 ) and particulate matter (PM). The concentration of pollutants is not only related to the concentration of pollutants emitted by the emission source, but also related to the flow of the atmosphere. During the flow of the atmosphere, the pollutants emitted through the pollution source will mix with the background atmosphere, thereby increasing the environmental concentration of the pollutant. . [0003] Conventional atmospheric environment mon...

AI Technical Summary

Problems solved by technology

It is known from common sense that two unknown quantities cannot be deduced from one monitoring data (i.e., the regional background concentration is unknown, and the concentration increase value caused by local emission sources is unknown), so the results of this conventional monitoring station cannot obtain a separate regional background concentration, while the background The calculation of concentration is the basis of pollutant monitoring. If the regional background concentration cannot be deducted, the concentration increase value contributed by the local emission cannot be accurately determined, and the emission responsibility cannot be strictly distinguished.

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