Characterization of short-, medium- and long-chain chlorinated paraffins in ambient PM2.5 from the Pearl River Delta, China
Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved..
Research on the environmental occurrence of long-chain chlorinated paraffins (LCCPs) in ambient fine particulate matter (PM2.5) is still scarce. In the present study, short-chain chlorinated paraffins (SCCPs), medium-chain chlorinated paraffins (MCCPs) and LCCPs were simultaneously quantified and profiled in PM2.5 samples collected from 96 primary or secondary schools in the Pearl River Delta of South China. SCCPs, MCCPs and LCCPs were detected in higher than 90% samples with concentrations in the range of 0.832-109, 1.02-110, and 0.173-17.4 ng/m3, respectively. The dominant congener groups of SCCPs, MCCPs and LCCPs were C13Cl6-8, C14Cl7-8, and C18Cl7-9, respectively. The concentrations of SCCPs and MCCPs were higher in summer than in winter, while an opposite seasonal trend was observed for LCCPs. Principal components analysis showed there were seasonal variations in the congener group patterns with C13Cl6-7 and C14Cl7 more abundant in summer than in winter. Concentrations of CPs also exhibited slight spatial variations. Exposure risk assessment based on different age groups suggested exposure to PM2.5-associated CPs would not pose significant health risk. The present study expands the existing knowledge of CPs contamination in atmospheric environment.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:175 |
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| Enthalten in: |
Environment international - 175(2023) vom: 15. Mai, Seite 107932 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Huang, Jingwen [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 22.05.2023 Date Revised 01.06.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.envint.2023.107932 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM356199843 |
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| 100 | 1 | |a Huang, Jingwen |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Characterization of short-, medium- and long-chain chlorinated paraffins in ambient PM2.5 from the Pearl River Delta, China |
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| 520 | |a Copyright © 2023 The Author(s). Published by Elsevier Ltd.. All rights reserved. | ||
| 520 | |a Research on the environmental occurrence of long-chain chlorinated paraffins (LCCPs) in ambient fine particulate matter (PM2.5) is still scarce. In the present study, short-chain chlorinated paraffins (SCCPs), medium-chain chlorinated paraffins (MCCPs) and LCCPs were simultaneously quantified and profiled in PM2.5 samples collected from 96 primary or secondary schools in the Pearl River Delta of South China. SCCPs, MCCPs and LCCPs were detected in higher than 90% samples with concentrations in the range of 0.832-109, 1.02-110, and 0.173-17.4 ng/m3, respectively. The dominant congener groups of SCCPs, MCCPs and LCCPs were C13Cl6-8, C14Cl7-8, and C18Cl7-9, respectively. The concentrations of SCCPs and MCCPs were higher in summer than in winter, while an opposite seasonal trend was observed for LCCPs. Principal components analysis showed there were seasonal variations in the congener group patterns with C13Cl6-7 and C14Cl7 more abundant in summer than in winter. Concentrations of CPs also exhibited slight spatial variations. Exposure risk assessment based on different age groups suggested exposure to PM2.5-associated CPs would not pose significant health risk. The present study expands the existing knowledge of CPs contamination in atmospheric environment | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Exposure assessment | |
| 650 | 4 | |a Long-chain chlorinated paraffins | |
| 650 | 4 | |a Particulate matter | |
| 650 | 4 | |a Spatiotemporal variations | |
| 650 | 7 | |a Paraffin |2 NLM | |
| 650 | 7 | |a 8002-74-2 |2 NLM | |
| 650 | 7 | |a Hydrocarbons, Chlorinated |2 NLM | |
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| 700 | 1 | |a Zhao, Lei |e verfasserin |4 aut | |
| 700 | 1 | |a Shi, Yumeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zeng, Xiaowen |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Wenwen |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Xianglong |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Ruqing |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Qizhen |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Guanghui |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Da |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Xiaotu |e verfasserin |4 aut | |
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