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Particulate matter inorganic component and organic identifier-based refined source analysis method

A technology of inorganic components and analytical methods, applied in the field of environmental monitoring

Active Publication Date: 2018-05-18
NANKAI UNIV
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Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a refined source apportionment method based on particulate inorganic components and organic markers, which can perform refined source apportionment on particulate pollution, which can meet the needs of atmospheric particulate pollution management for refined source apportionment

Method used

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  • Particulate matter inorganic component and organic identifier-based refined source analysis method

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Embodiment 1

[0027] 1. Collect a sample of particulate matter.

[0028] In a certain place, an automatic sampler was used to collect air for 100 consecutive days, and a total of about 100 samples were collected and brought back to the laboratory.

[0029] 2. Determining the content of inorganic components and organic components in particulate matter samples.

[0030] The organic components (such as hopanes, zanes, alkanes, polycyclic aromatic hydrocarbons, levoglucosan, cholesterol, etc.) and inorganic components (such as elements Na, Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Cd, Zn, Hg, Pb, etc.; ion Cl - , NO 3 - , SO 4 2- , NH 4 + etc.; organic carbon OC; elemental carbon EC, etc.) are detected.

[0031] The content of organic components was measured by GC-MS (gas chromatography-mass spectrometry), and the content of metal elements was measured by ICP-MS (inductively coupled plasma mass spectrometry) or ICP-AES (inductively coupled plasma atomic emission spectrometry) or XRF...

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Abstract

The invention provides a particulate matter inorganic component and organic identifier-based refined source analysis method. The method comprises the steps of collecting a particulate matter sample; measuring the content of inorganic components and organic components in the particulate matter sample; according to obtained content data of the inorganic components, performing source analysis on a particulate matter receptor by utilizing a factor analysis model to obtain a source spectrum matrix and a source contribution matrix; calculating a related coefficient R1 of the organic component content and the source contribution matrix, screening the organic components according to the related coefficient R1, and identifying the organic components as organic identifiers; and according to the organic identifiers and the content data of the inorganic components, performing refined source analysis on the particle matter receptor by utilizing the factor analysis model to obtain the source spectrum matrix and the source contribution matrix. According to the source analysis method, by utilizing a relationship between the organic components and the inorganic components in a particular matter, and a relationship between the organic components and the analysis contribution of the inorganic components, the organic identifiers are identified; conventional components and the organic identifiers are combined for performing refined analysis; and refined demands of atmospheric particulate matter pollution management on source analysis are met.

Description

technical field [0001] The invention belongs to the technical field of environmental monitoring, and in particular relates to a refined source apportionment method based on particulate matter inorganic components and organic markers. Background technique [0002] In recent years, my country's urbanization and industrialization process has been rapid, energy consumption has shown a trend of continuous increase, and the number of motor vehicles has increased rapidly, making the problem of urban air pollution increasingly serious. The prevention and control of particulate matter pollution is an important part of my country's environmental management. The sources of atmospheric particulate matter are complex, and the use of source apportionment results to guide the prevention and control of particulate matter pollution can improve the scientific nature of air pollution management. Atmospheric particulate matter source analysis refers to the technical method of qualitatively or q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18G06F17/16
CPCG06F17/16G06F17/18
Inventor 田瑛泽冯银广薛倩倩
Owner NANKAI UNIV
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