The indoor-outdoor relationship of Polycyclic Aromatic Hydrocarbons (PAHs) from PM2.5 in Beijing during APEC

IF 2.9 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Air Quality Atmosphere and Health Pub Date : 2024-10-24 DOI:10.1007/s11869-024-01656-6

Yuxin Wang, Yangyang Xie

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引用次数: 0

Abstract

Studies confirm that polycyclic aromatic hydrocarbons (PAHs) in PM_2.5 elevate cancer risk. Recognized globally, the majority of exposure to outdoor particulate matter (PM) occurs indoors. Control measures such as traffic restrictions, industrial shutdowns, and designated holidays during the APEC summit significantly altered the concentration of PAHs in indoor and outdoor environments. The indoor-to-outdoor (I/O) ratio for total PAHs concentration is 0.540, while for equivalent toxicity concentration (ETC) and equivalent carcinogenic risk concentration (ECRC), the ratios are 0.552 and 0.549, respectively. In severe pollution, these ratios drop to 0.348 and 0.353. These results show that the containment structure effectively reduces PAHs, particularly in severe pollution conditions. The total average exposure concentration of the population during and after the control measures was 10.780 ng/m³ and 18.600 ng/m³, respectively. The results indicate that the control strategy effectively reduced the concentrations of PAHs indoors and outdoors during the meeting, providing a reference for controlling pollutant concentrations in indoor and outdoor environments.

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研究证实，PM2.5 中的多环芳烃（PAHs）会增加癌症风险。全球公认，接触室外颗粒物（PM）的大部分时间是在室内。亚太经合组织峰会期间的交通限制、工业停产和指定假期等控制措施极大地改变了室内外环境中多环芳烃的浓度。多环芳烃总浓度的室内外（I/O）比率为 0.540，而等效毒性浓度（ETC）和等效致癌风险浓度（ECRC）的室内外（I/O）比率分别为 0.552 和 0.549。在严重污染情况下，这些比率分别降至 0.348 和 0.353。这些结果表明，围护结构能有效减少多环芳烃，尤其是在严重污染条件下。在采取控制措施期间和之后，居民的总平均暴露浓度分别为 10.780 纳克/立方米和 18.600 纳克/立方米。结果表明，控制策略有效降低了会议期间室内外的多环芳烃浓度，为控制室内外环境的污染物浓度提供了参考。

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来源期刊

Air Quality Atmosphere and Health ENVIRONMENTAL SCIENCES-

CiteScore

8.80

自引率

2.00%

发文量

146

审稿时长

>12 weeks

期刊介绍： Air Quality, Atmosphere, and Health is a multidisciplinary journal which, by its very name, illustrates the broad range of work it publishes and which focuses on atmospheric consequences of human activities and their implications for human and ecological health. It offers research papers, critical literature reviews and commentaries, as well as special issues devoted to topical subjects or themes. International in scope, the journal presents papers that inform and stimulate a global readership, as the topic addressed are global in their import. Consequently, we do not encourage submission of papers involving local data that relate to local problems. Unless they demonstrate wide applicability, these are better submitted to national or regional journals. Air Quality, Atmosphere & Health addresses such topics as acid precipitation; airborne particulate matter; air quality monitoring and management; exposure assessment; risk assessment; indoor air quality; atmospheric chemistry; atmospheric modeling and prediction; air pollution climatology; climate change and air quality; air pollution measurement; atmospheric impact assessment; forest-fire emissions; atmospheric science; greenhouse gases; health and ecological effects; clean air technology; regional and global change and satellite measurements. This journal benefits a diverse audience of researchers, public health officials and policy makers addressing problems that call for solutions based in evidence from atmospheric and exposure assessment scientists, epidemiologists, and risk assessors. Publication in the journal affords the opportunity to reach beyond defined disciplinary niches to this broader readership.