Research of the pollution characteristics of PAHs in air particulate pollutants

International Conference on Manufacturing Technology, Materials and Chemical Engineering

材料科学;化学工业

Ma, Tongyu^1 ; Chu, Yiwei^1 ; Zhang, Bo^1^2 ; Liu, Nannan^3

Tianjin Eco-City Water Investment and Construction Co., Ltd, Tianjin

300450, China^1

School of Environmental Science and Engineering, Tianjin University, Tianjin

300350, China^2

School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin

300384, China^3

关键词: Air particulate;    Human activities;    Industrial pollutants;    Particulate Matter;    Polycyclic aromatic hydrocarbons (PAHS);    Positive correlations;    Suburban areas;    Urban and suburban areas;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/592/1/012196/pdf
DOI  :  10.1088/1757-899X/592/1/012196

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Polycyclic aromatic hydrocarbons (PAHs) and particulate matter (PM) exhibit a slightly positive correlation. Results showed that PAHs and PM2.5 occurred in the following order of areas: urban > suburban > rural. The light-ring PAHs accounted for higher percentage than the heavy-ring ones in PM2.5. Coal burning, human activities, and industrial pollutants were major sources of PAHs in the urban area according to the ratio of specific toxic PAH compounds. Traffic release and coal burning were predominant integrative sources in suburban areas. In rural areas, the contribution of PAH pollution may originate from coal burning and human activities as the result of long-range transportation from urban and suburban areas.