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Levels, distributio...
Levels, distribution, sources and children health risk of PAHs in residential dust : A multi-city study in China
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Wang, Xinqi (författare)
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Wang, Xiaoli (författare)
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Qi, Jing (författare)
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Gong, Shuhan (författare)
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Wang, Chong (författare)
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Li, Li (författare)
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Fan, Lin (författare)
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Liu, Hang (författare)
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Cao, Yun (författare)
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Liu, Mengmeng (författare)
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Han, Xu (författare)
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Su, Liqin (författare)
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Yao, Xiaoyuan (författare)
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- Tysklind, Mats (författare)
- Umeå universitet,Kemiska institutionen
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Wang, Xianliang (författare)
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(creator_code:org_t)
- Elsevier, 2023
- 2023
- Engelska.
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Ingår i: Science of the Total Environment. - : Elsevier. - 0048-9697 .- 1879-1026. ; 862
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Background: Polycyclic aromatic hydrocarbons (PAHs) are typical residential pollutants mainly from biofuel combustion that impose inevitable risk to children. The PAHs in residential dust is universal in most Chinese households with an obvious public health concern.Methods: In this observational study, a total of 235 residential dust samples from 8 Chinese cities (Panjin, Shijiazhuang, Lanzhou, Luoyang, Xi'an, Wuxi, Mianyang, and Shenzhen) were collected from April 2018 to March 2019, which were extracted and analyzed for 16 priority PAHs by HPLC/FD-UV. Diagnostic ratios, hierarchical clustering analysis and principal component analysis were applied simultaneously for source apportionments. Incremental lifetime cancer risk was employed to estimate children's health risks based on the assumed exposure scenarios. Spearman correlation, Mann-Whitney U test, Kruskal-Wallis H test and Partial Least Squares were used to screen the factors affecting the concentration of PAHs in residential dust.Results: The median concentration of ∑16PAHs in residential dust from 8 cities was 44.11 μg/g (0.04 - 355.79 μg/g). ∑16PAHs were found both higher in dust samples in heating season and from downwind households only in Mianyang (p < 0.05). The leading two sources of PAHs were combustion processes and automobile exhaust emissions based on four principal components that accounted for 74.29 % of the total variance. Indoor air environmental factors, household characteristics, and residents' behavioral lifestyles may be the influencing factors of residential dust PAHs. The carcinogenic risk of children aged 0 - 5 years, under the moderate exposure level of PAHs in residential dust, exceeded the acceptable level (10−5 - 10−4 for dermal contact and 10−6 - 10−5 for ingestion).Conclusions: There was serious PAHs pollution in residential dust under actual living conditions in eight cities across China. More evidence-based measures were needed to control PAHs pollution to safeguard children's health according to appointed sources and influencing factors in residential dust.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Arbetsmedicin och miljömedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Occupational Health and Environmental Health (hsv//eng)
Nyckelord
- Polycyclic aromatic hydrocarbons
- Residential dust
- Chinese children
- Distribution
- Sources
- Health risk assessment
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- Av författaren/redakt...
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Wang, Xinqi
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Wang, Xiaoli
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Qi, Jing
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Gong, Shuhan
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Wang, Chong
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Li, Li
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visa fler...
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Fan, Lin
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Liu, Hang
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Cao, Yun
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Liu, Mengmeng
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Han, Xu
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Su, Liqin
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Yao, Xiaoyuan
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Tysklind, Mats
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Wang, Xianliang
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visa färre...
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Umeå universitet