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Air pollution source area determination method based on fine particulate matter and ozone

A technology for fine particles and pollution sources, which is used in air quality improvement, particle suspension analysis, and analysis of gas mixtures to achieve high accuracy and easy operation.

Active Publication Date: 2022-07-26
TIANJIN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Studies have shown that although PM 2.5 and O 3 belong to different types of pollutants, but the two can interact in many ways, and PM 2.5 Changes in the emission structure of pollution sources caused by emission reduction measures focusing on prevention and control may be an important reason for the continuous rise of ozone pollution

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  • Air pollution source area determination method based on fine particulate matter and ozone
  • Air pollution source area determination method based on fine particulate matter and ozone
  • Air pollution source area determination method based on fine particulate matter and ozone

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Embodiment Construction

[0056] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure will be further described in detail below with reference to the specific embodiments and the accompanying drawings.

[0057] PM 2.5 and O 3 The interaction mechanism is more controversial, the troposphere O 3 and secondary PM 2.5 are produced from NO x The photochemical oxidation process of VOCs and VOCs, but the related research on the transformation mechanism is still relatively weak. At present, the joint prevention and control mechanism is playing an important role in solving regional air pollution problems. Especially in the urgent need to solve PM 2.5 with O 3 In the case of pollution, but the chemical mechanism is unknown, the role of the joint prevention and control mechanism can be fully utilized to sort out the transmission relationship of pollutants between cities, clarify the types of pollution in cities, and cla...

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Abstract

The present disclosure provides a method for determining an air pollution source area based on fine particulate matter and ozone, including: acquiring an air pollution source area determination task; executing the air pollution source area determination task to acquire backward trajectory data in a research area; Meshing; PM imported into the study area 2.5 and O 3 Hourly observations of ; according to PM 2.5 Corresponding observations determine PM 2.5 Corresponding potential source contribution factor PSCF ij and concentration weighted trajectory CWT ij ; according to O 3 The corresponding observations determine O 3 Corresponding potential source contribution factor PSCF ij and concentration weighted trajectory CWT ij ; according to PM 2.5 and O 3 Corresponding PSCF ij and PM 2.5 and O 3 Corresponding CWT ij Respectively determine multiple areas that meet the preset conditions; determine common areas in the multiple areas; determine the common areas as air pollution source areas.

Description

technical field [0001] The present disclosure relates to the technical field of air quality monitoring, and in particular, to a method for determining an air pollution source area based on fine particulate matter and ozone. Background technique [0002] Due to the severe situation of air pollution, researchers at home and abroad have carried out a lot of research on the concentration distribution, temporal and spatial changes, regional transport and formation mechanism of air pollutants. All localities are also actively carrying out air pollution source analysis, air quality forecasting business and capacity building, in order to analyze the source of air pollution and analyze and identify key areas that contribute to pollution, so as to provide a basis for pollution control. [0003] Currently, although fine particulate matter (PM 2.5 ) concentrations continued to decline, but ozone (O 3 ) concentration showed a rapid rise and spread. Research has shown that although PM ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06G01N33/00G06Q50/26
CPCG01N15/06G01N33/0039G01N33/0047G01N33/0004G01N33/0037G06Q50/26G01N2033/0068Y02A50/20
Inventor 王媛王琰玮朱荣杰张蓝心杨晨博潘洲
Owner TIANJIN UNIV