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Co-occurrence of polycyclic aromatic hydrocarbons and their oxygenated derivatives in indoor dust from various microenvironments in Guangzhou, China: levels, sources, and potential human health risk

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Titel: Co-occurrence of polycyclic aromatic hydrocarbons and their oxygenated derivatives in indoor dust from various microenvironments in Guangzhou, China: levels, sources, and potential human health risk
Autoren: Wu, Yang, Hu, Qiongpu, Zeng, Xiangying, Xu, Liang, Liang, Yi, Yu, Zhiqiang
Publikationsjahr: 2023
Bestand: Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) / 中国科学院广州地球化学研究所机构知识库
Schlagwörter: Environmental Sciences, STREET DUST, NITRATED-PAHS, PARTICLE-SIZE, URBAN SOILS, HOUSE-DUST, AIR, AZAARENES, PM2.5, BIOACCESSIBILITY, CYTOTOXICITY
Beschreibung: For decades, the presence and potential health risk of polycyclic aromatic hydrocarbons (PAHs) in indoor dust have been extensively investigated while with limited attention to oxygenated PAHs (OPAHs). In this study, we collected 45 indoor dust from four microenvironments in Guangzhou City, China, and then focused on the co-occurrence of 16 PAHs and 8 OPAHs and their potential carcinogenic risk to humans. The ΣPAHs concentrations, dominated by 4–6 ring PAHs, ranged from 1761 to 14,290?ng/g (mean of 6058?ng/g) without significant difference in the different microenvironments (Tukey, p > 0.05). The OPAHs were observed with concentrations from 250 to 5160?ng/g (mean of 1646?ng/g), and anthraquinone (AQ) was identified as the main OPAHs with significantly high levels in the residential environment than in instrumental rooms. Notably, AQ dominated over the other target analytes in dust in this study. Our results indicated that PAHs and OPAHs in indoor dust were from outdoor environments, which mainly originated from vehicular exhaust and biomass/coal combustion. A potential cancer risk of PAHs and OPAHs to local adults and children was observed via inhalation, ingestion, and dermal absorption, with the main contribution from benzo[a]pyrene and dibenz[a,h]anthracene. ? 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
Publikationsart: report
Sprache: English
Relation: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH; http://ir.gig.ac.cn/handle/344008/80321
DOI: 10.1007/s11356-023-26476-6
Verfügbarkeit: http://ir.gig.ac.cn/handle/344008/80321
https://doi.org/10.1007/s11356-023-26476-6
Rights: cn.org.cspace.api.content.CopyrightPolicy@5d4e37b1
Dokumentencode: edsbas.69FFB833
Datenbank: BASE
Beschreibung
Abstract:For decades, the presence and potential health risk of polycyclic aromatic hydrocarbons (PAHs) in indoor dust have been extensively investigated while with limited attention to oxygenated PAHs (OPAHs). In this study, we collected 45 indoor dust from four microenvironments in Guangzhou City, China, and then focused on the co-occurrence of 16 PAHs and 8 OPAHs and their potential carcinogenic risk to humans. The ΣPAHs concentrations, dominated by 4–6 ring PAHs, ranged from 1761 to 14,290?ng/g (mean of 6058?ng/g) without significant difference in the different microenvironments (Tukey, p > 0.05). The OPAHs were observed with concentrations from 250 to 5160?ng/g (mean of 1646?ng/g), and anthraquinone (AQ) was identified as the main OPAHs with significantly high levels in the residential environment than in instrumental rooms. Notably, AQ dominated over the other target analytes in dust in this study. Our results indicated that PAHs and OPAHs in indoor dust were from outdoor environments, which mainly originated from vehicular exhaust and biomass/coal combustion. A potential cancer risk of PAHs and OPAHs to local adults and children was observed via inhalation, ingestion, and dermal absorption, with the main contribution from benzo[a]pyrene and dibenz[a,h]anthracene. ? 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
DOI:10.1007/s11356-023-26476-6