Correction method for mass concentration data of atmospheric particulates

A technology of atmospheric particulate matter and mass concentration, which is applied in particle suspension analysis, measurement device, suspension and porous material analysis, etc. The effect of improving reliability and improving monitoring efficiency

Active Publication Date: 2016-04-27
BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT
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Problems solved by technology

[0004] The prior art also uses the mass concentration of atmospheric particulate matter calculated from the empirical value of a single particle density, which is to calculate the particle size of a single particle detected by the light-scattering particle sensor to obtain the particle volume, multiply it by the empirical value of the particle density, and obtain the mass of a single particle, according to The mass concentration of particulate matter is calculated based on the number of detected particulate matter and sampling conditions. Moreover, the d...

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  • Correction method for mass concentration data of atmospheric particulates
  • Correction method for mass concentration data of atmospheric particulates
  • Correction method for mass concentration data of atmospheric particulates

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Embodiment approach

[0020] According to an embodiment of the present invention, the method for correcting the mass concentration data of atmospheric particulate matter includes:

[0021] S1, obtain the mass concentration data of atmospheric particulate matter monitored by all monitoring stations in the monitoring area, where the monitoring stations include reference stations and non-reference stations, specifically, the mass concentration data of atmospheric particulate matter can be sent to the data center;

[0022] S2, obtaining the meteorological data of the reference site, wherein the meteorological data can be measured by the meteorological parameter monitoring equipment configured in the reference site, using the meteorological data of the reference site and the monitored atmospheric particulate matter mass concentration data to perform model training, Get the calibration model;

[0023] S3, correcting the atmospheric particle mass concentration data of the non-reference station according t...

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Abstract

The invention provides a correction method for mass concentration data of atmospheric particulates. According to the method, an on-line correction model is established according to meteorological data of a reference station and the mass concentration data, measured by the reference station, of the atmospheric particulates, and the correction model is adopted to correct the measured mass concentration data, measured by a non-reference station, of the atmospheric particulates. The correction method improves the accuracy of the mass concentration data of the atmospheric particulates and increases the monitoring efficiency of monitoring stations.

Description

technical field [0001] The invention relates to the field of environmental monitoring, in particular to a method for correcting atmospheric particle mass concentration data monitored by a monitoring station. Background technique [0002] At present, the methods for measuring the mass concentration of atmospheric particulate matter at home and abroad are mainly the off-line filter membrane weighing method, as well as the on-line β-ray method and micro-oscillating balance method. The filter membrane weighing method is to extract a quantitative volume of air at a constant speed, and after the particle size is screened, the particles of the selected particle size in the air are trapped on the filter membrane, and the weight of the filter membrane before and after sampling is weighed with a balance , according to the difference and the sampling volume, calculate the particle mass concentration. The filter membrane weighing method is currently an internationally recognized benchm...

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Application Information

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IPC IPC(8): G01N15/06
CPCG01N15/06
Inventor 张大伟陈添刘保献王莉华安欣欣姜南周一鸣
Owner BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT
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