Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment
Abstract Levels, compositions, sources and health risk of PM2.5-bound PAHs were measured at a regional monitoring site of Huang-gang in the winter of 2018. Samples were collected every morning, afternoon, evening and late night (LN). The average concentrations of PM2.5 and PAHs were 110.4 ± 48.3 µg...
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| Language: | English |
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Springer
2020-11-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.2020.06.0337 |
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| author | Mingming Shi Tianpeng Hu Yao Mao Cheng Cheng Weijie Liu Qian Tian Zhanle Chen Xinli Xing Shihua Qi |
| author_facet | Mingming Shi Tianpeng Hu Yao Mao Cheng Cheng Weijie Liu Qian Tian Zhanle Chen Xinli Xing Shihua Qi |
| author_sort | Mingming Shi |
| collection | DOAJ |
| description | Abstract Levels, compositions, sources and health risk of PM2.5-bound PAHs were measured at a regional monitoring site of Huang-gang in the winter of 2018. Samples were collected every morning, afternoon, evening and late night (LN). The average concentrations of PM2.5 and PAHs were 110.4 ± 48.3 µg m−3 and 25.6 ± 12.0 ng m−3, respectively. The concentration of PM2.5 was in the order of evening > morning > afternoon > LN, while PAHs concentration was in the order of evening > LN > morning > afternoon. According to PM2.5 concentration and its changing trend, the haze can be divided into three stages: early (low concentration, January 13–15, EHZ), medium (high concentration, January 16–22, MHZ) and late (concentration decreased rapidly, January 23–24, LHZ). A positive correlation (P < 0.01) was observed between PM2.5 and Σ16PAHs concentration only in MHZ. Besides, PAHs concentration was positively related to NOx concentration, CO concentration and temperature but negatively correlated with RH, independent of O3 concentration. The ratios of OC/EC indicated that the secondary aerosol had a great influence on the formation of haze. Three sources of PAHs including traffic emission, coal combustion and biomass combustion were extracted and quantified, accounting for 54.4%, 13.3% and 32.3% of PAHs, respectively. Potential source contribution function (PSCF) and concentration weighted trajectory (CWT) indicated the transmission of PM2.5 from Wuhan and local pollutant emission were crucial to the formation of haze. BaPeq concentration combined with ILCR values was used to evaluate health risk and the results showed this haze had potential health risk to both adults and children. |
| format | Article |
| id | doaj-art-8d5a84fe44a24a43a4f81fe2453014a6 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2020-11-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-8d5a84fe44a24a43a4f81fe2453014a62025-02-09T12:20:56ZengSpringerAerosol and Air Quality Research1680-85842071-14092020-11-0121511910.4209/aaqr.2020.06.0337Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk AssessmentMingming Shi0Tianpeng Hu1Yao Mao2Cheng Cheng3Weijie Liu4Qian Tian5Zhanle Chen6Xinli Xing7Shihua Qi8School of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesState Key Laboratory of Biogeology and Environmental Geology, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesAbstract Levels, compositions, sources and health risk of PM2.5-bound PAHs were measured at a regional monitoring site of Huang-gang in the winter of 2018. Samples were collected every morning, afternoon, evening and late night (LN). The average concentrations of PM2.5 and PAHs were 110.4 ± 48.3 µg m−3 and 25.6 ± 12.0 ng m−3, respectively. The concentration of PM2.5 was in the order of evening > morning > afternoon > LN, while PAHs concentration was in the order of evening > LN > morning > afternoon. According to PM2.5 concentration and its changing trend, the haze can be divided into three stages: early (low concentration, January 13–15, EHZ), medium (high concentration, January 16–22, MHZ) and late (concentration decreased rapidly, January 23–24, LHZ). A positive correlation (P < 0.01) was observed between PM2.5 and Σ16PAHs concentration only in MHZ. Besides, PAHs concentration was positively related to NOx concentration, CO concentration and temperature but negatively correlated with RH, independent of O3 concentration. The ratios of OC/EC indicated that the secondary aerosol had a great influence on the formation of haze. Three sources of PAHs including traffic emission, coal combustion and biomass combustion were extracted and quantified, accounting for 54.4%, 13.3% and 32.3% of PAHs, respectively. Potential source contribution function (PSCF) and concentration weighted trajectory (CWT) indicated the transmission of PM2.5 from Wuhan and local pollutant emission were crucial to the formation of haze. BaPeq concentration combined with ILCR values was used to evaluate health risk and the results showed this haze had potential health risk to both adults and children.https://doi.org/10.4209/aaqr.2020.06.0337PM2.5PAHsSourcesSpatial distributionHealth risk assessment |
| spellingShingle | Mingming Shi Tianpeng Hu Yao Mao Cheng Cheng Weijie Liu Qian Tian Zhanle Chen Xinli Xing Shihua Qi Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment Aerosol and Air Quality Research PM2.5 PAHs Sources Spatial distribution Health risk assessment |
| title | Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment |
| title_full | Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment |
| title_fullStr | Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment |
| title_full_unstemmed | Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment |
| title_short | Polycyclic Aromatic Hydrocarbons in Atmospheric PM2.5 during Winter Haze in Huang-gang, Central China: Characteristics, Sources and Health Risk Assessment |
| title_sort | polycyclic aromatic hydrocarbons in atmospheric pm2 5 during winter haze in huang gang central china characteristics sources and health risk assessment |
| topic | PM2.5 PAHs Sources Spatial distribution Health risk assessment |
| url | https://doi.org/10.4209/aaqr.2020.06.0337 |
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