Method for resolving collinearity problem in origin parse for particles in air

An air particulate matter and collinearity technology, which is applied in the field of analyzing the source of ambient air particulate matter, can solve problems such as collinearity, achieve the effects of avoiding errors, accurate and reliable analysis results, and improving accuracy and stability

Inactive Publication Date: 2009-04-29
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0006] The problem to be solved by the present invention is that in the existing method for analyzing the source of ambient air particulate matter, there is a problem of multiple results of a set of data due to the problem of collinearity
Thereby providing a method to solve the collinearity problem encountered in air particulate matter source apportionment

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  • Method for resolving collinearity problem in origin parse for particles in air
  • Method for resolving collinearity problem in origin parse for particles in air
  • Method for resolving collinearity problem in origin parse for particles in air

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Embodiment Construction

[0026] The present invention takes the analysis of the source of air particulate matter in Taiyuan City as an example, and in conjunction with the accompanying drawings, the specific implementation of the present invention is further described in detail with examples, which are subject to the realization of those skilled in the art. This embodiment is a detailed description of the present invention and does not limit the present invention in any way.

[0027] First, collect samples. The sampling points are the streets, buildings, factories and surrounding farmland in Taiyuan City; The measurement of isotopic composition and can represent the ambient air quality of Taiyuan City; the sampling time can be determined according to the cleanliness of the local air, the detection limit of the chemical composition and carbon isotopic composition measurement method used, and the sampling efficiency of the instrument. The principle is to be able to meet the requirements of component ana...

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Abstract

The invention provides a method for solving the collinearity problem in the process of analyzing the source of air particulate matters, which comprises the following steps: firstly, collecting an ambient air particulate matter sample and a pollution source sample, and performing stable carbon isotope analysis on the collected samples; secondly, reconstructing a stable carbon isotope mass balance model of three pollution sources including automotive vehicle tail gas and dust, coal soot, and soil wind dust and sand which have collinearity through analyzing the component characteristics of stable isotopes of a total carbon in the pollution sources and the ambient air particulate matters; and thirdly, analyzing the contribution of the three pollution sources to the ambient air particulate matters. The isotope mass balance model is the development of a chemical mass balance receptor model, and solves the difficult problem of one set of data with various results encountered by singly using a chemical mass balance to analyze the source of the air particulate matters.

Description

technical field [0001] The invention relates to a method for analyzing the source of ambient air particles, in particular to a method for solving the collinearity problem encountered in analyzing the source of air particles. technical background [0002] Particulate matter is the main cause of serious air pollution in most cities in my country. Due to the complexity of the sources of particulate matter, to formulate scientific and reasonable particulate matter pollution prevention and control measures, the source of particulate matter in the ambient air and the contribution rate of each main source category should be analyzed first. At present, the analysis of the source of air particulate matter in the world mainly uses the chemical mass balance model (ie, CMB, according to the principle of mass conservation, the amount of an element in atmospheric particulate matter is the linear sum of the contributions of various sources to it). Calculate the contribution rate of various...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N15/00
CPCY02A50/20
Inventor 彭林张建强李玉倩任照芳牟玲施瑞良
Owner TAIYUAN UNIV OF TECH
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