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Atmospheric particulate collection and analysis device and collection and analysis method thereof

A technology for the collection and analysis of atmospheric particulate matter, applied in the direction of particle suspension analysis, measuring devices, and analysis materials, can solve the problems of poor accuracy of atmospheric particle concentration and inability to trace the source of atmospheric particle pollution

Pending Publication Date: 2020-05-26
HUNAN CITY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the accuracy of collecting and analyzing the concentration of atmospheric particles in the existing atmospheric particle collection and analysis devices and their collection and analysis methods is poor; at the same time, the source of atmospheric particle pollution cannot be accurately traced

Method used

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  • Atmospheric particulate collection and analysis device and collection and analysis method thereof
  • Atmospheric particulate collection and analysis device and collection and analysis method thereof
  • Atmospheric particulate collection and analysis device and collection and analysis method thereof

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Embodiment 1

[0096] The collection and analysis method of the atmospheric particle collection and analysis device provided by the embodiment of the present invention is as follows: figure 1 As shown, as a preferred embodiment, the method for identifying the collected atmospheric particulate matter image by using the atmospheric particulate matter SEM imaging method through the image recognition program provided by the embodiment of the present invention is as follows:

[0097] (1) Collect PM2.5 atmospheric particulate matter and attach the atmospheric particulate matter to the filter membrane.

[0098] (2) Make the filter membrane into a sample: cut out a rectangular block from the sample, and adhere it to an aluminum metal post with conductive adhesive; the rectangular block is plated with platinum under vacuum conditions, and put the platinum-plated rectangular block into the sample tower.

[0099] (3) Use a high-resolution scanning electron microscope and an energy dispersive analyzer ...

Embodiment 2

[0106] The collection and analysis method of the atmospheric particle collection and analysis device provided by the embodiment of the present invention is as follows: figure 1 As shown, as a preferred embodiment, the method for correcting the collected concentration data through the single-chip microcomputer control data correction program provided by the embodiment of the present invention is as follows:

[0107] (1) Obtain the air particulate matter mass concentration data monitored by all monitoring stations in the monitoring area through the concentration detection equipment, wherein the monitoring stations include reference stations and non-reference stations.

[0108] (II) Acquiring the meteorological data of the reference station, using the meteorological data of the reference station and the monitored atmospheric particle mass concentration data to perform model training, and obtaining an online calibration model.

[0109] (III) Calibrate the atmospheric particulate m...

Embodiment 3

[0116] The collection and analysis method of the atmospheric particle collection and analysis device provided by the embodiment of the present invention is as follows: figure 1 As shown, as a preferred embodiment, the method for tracing the source of atmospheric particle pollution through the traceability program provided by the embodiment of the present invention is as follows:

[0117] 1) Collect and obtain activity level data related to atmospheric particulate matter emissions in the jurisdiction through monitoring equipment, and establish a regional particulate matter emission information database.

[0118] 2) According to the actual monitoring or forecast results, determine the period of particle pollution.

[0119] 3) Use the meteorological model WRF to simulate the regional meteorological environment during the pollution event period, and obtain the regional meteorological data during the pollution period to determine the location of the receptor; the location of the re...

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Abstract

The invention belongs to the technical field of atmospheric particulate collection and analysis, and discloses an atmospheric particulate collection and analysis device and a collection and analysis method thereof. The collection and analysis method of the atmospheric particulate collection and analysis device comprises the steps: atmospheric particulate concentration data and images are collected, and atmospheric particulate images are recognized; the collected concentration data are corrected, compared and analyzed; and the source of atmospheric particulates is traced, and atmospheric particulate data are stored and displayed. By establishing the correction model, the data of the monitoring station can be directly corrected, so that the accuracy of the atmospheric particulate mass concentration data is improved; a source list-meteorological model-particle diffusion model technology is adopted to analyze atmospheric particulate pollution sources, and a pollution source area identification model is established; historical and future particulate matter pollution sources can be traced, the traceability result is accurate, the targeting performance is high, and the supporting performance specified by the prevention and control policy is particularly high.

Description

technical field [0001] The invention belongs to the technical field of atmospheric particle collection and analysis, and in particular relates to an atmospheric particle collection and analysis device and a collection and analysis method thereof. Background technique [0002] Atmospheric particulate matter (Atmospheric Particulate Matters) is a general term for various solid and liquid particulate matter existing in the atmosphere. All kinds of particulate matter are evenly dispersed in the air to form a relatively stable and huge suspension system, that is, the aerosol system, so atmospheric particulate matter is also called atmospheric aerosols (Atmospheric Aerosols). In 1918, physicist E.GDonnan found that the colloidal chemical process and the atmospheric process with clouds have important similarities, so referring to the term "Hydrosol (Hydrosol)", the term "Aerosol (Aerosol)" was introduced to refer to Particles and droplets dispersed in the air. Aerosol is a multip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 卿湘东徐玲黄毅林立李必才
Owner HUNAN CITY UNIV
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