Polycyclic aromatic hydrocarbon source apportionment method

A polycyclic aromatic hydrocarbon and source analysis technology, applied in the field of pollutant source analysis, can solve the problems of low application value, no consideration of the nonlinear characteristics of the pollution source spectrum, and the identification results cannot truly reflect the corresponding relationship between the factor load and the pollution source spectrum.

Inactive Publication Date: 2016-08-17
NORTH CHINA INST OF AEROSPACE ENG
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  • Abstract
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Problems solved by technology

Most of these methods do not consider the nonlinear characteristics of the pollution source spectrum, and the identification results cannot truly

Method used

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  • Polycyclic aromatic hydrocarbon source apportionment method
  • Polycyclic aromatic hydrocarbon source apportionment method
  • Polycyclic aromatic hydrocarbon source apportionment method

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Experimental program
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Embodiment

[0073] Combined with the overall urban planning and industrial layout along the Jinjiang River Basin, the Jinjiang area with complex emission sources and serious pollution was selected as the investigation and research area.

[0074] Carry out investigations on pollution sources of polycyclic aromatic hydrocarbons and analyze the investigation data.

[0075] This data analysis mainly carried out K-means cluster analysis on the 16 kinds of PAH substances limitedly controlled by the EPA above, and the results are shown in Table 3 and Table 4 below. Table 3 is the initial classification center, and Table 4 is the final classification center.

[0076] Table 3 Initial classification center

[0077]

[0078] Table 4 Final classification center

[0079]

[0080] Table 5 is an analysis of variance table, which analyzes whether each clustering variable has statistical significance. It can be seen from the table that the p-value (Sig.) corresponding to the 5 clustering variables...

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Abstract

The invention discloses a polycyclic aromatic hydrocarbon source apportionment method. The method comprises the steps of firstly, determining the research area of source apportionment according to urban industrial distribution, and then determining polycyclic aromatic hydrocarbon featured pollutants through site sampling and analysis; subsequently, further applying a chemical mass balance method based on clustering classification identification for precisely screening and identifying sources of polycyclic aromatic bodies in the environment; finally, according to the featured pollutants and the contribution rate of the featured pollutants to source apportionment of the pollutants in the environment, determining the source type and the influential degree of the featured pollutants. By means of the method, the sources of the pollutants can be traced rapidly and accurately, practicability is great, and the method is suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of pollutant source apportionment methods, in particular to a polycyclic aromatic hydrocarbon source apportionment method based on chemical mass balance based on cluster classification identification. Background technique [0002] Source apportionment is a method to study the impact and effect of pollution sources on the surrounding environmental pollution. The current pollution source apportionment techniques can be roughly divided into three types: inventory analysis, diffusion model and receptor model. The inventory analysis method is a source apportionment method to establish a list model by observing and simulating the source emissions, emission characteristics, and geographical distribution of pollutants; the diffusion model is a predictive model, which is input by inputting the emission data of each pollution source and Relevant parameter information is used to predict the spatial and temporal change...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 陈锋曹张伟张云峰刘晓立王红梅
Owner NORTH CHINA INST OF AEROSPACE ENG
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