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Tytuł pozycji:

Insights into the source-specific health risk of ambient particle-bound metals in the Pearl River Delta region, China

Tytuł:
Insights into the source-specific health risk of ambient particle-bound metals in the Pearl River Delta region, China
Autorzy:
Shaojie Fu
Dingli Yue
Weiwei Lin
Qiansheng Hu
Luan Yuan
Yan Zhao
Yuhong Zhai
Dejian Mai
Hedi Zhang
Qing Wei
Lingyan He
Temat:
PM2.5
Risk assessment
Carcinogenic risk
Non-carcinogenic risk
Source apportionment
Environmental pollution
TD172-193.5
Environmental sciences
GE1-350
Źródło:
Ecotoxicology and Environmental Safety, Vol 224, Iss , Pp 112642- (2021)
Wydawca:
Elsevier, 2021.
Rok publikacji:
2021
Kolekcja:
LCC:Environmental pollution
LCC:Environmental sciences
Typ dokumentu:
article
Opis pliku:
electronic resource
Język:
English
ISSN:
0147-6513
Relacje:
http://www.sciencedirect.com/science/article/pii/S0147651321007545; https://doaj.org/toc/0147-6513
DOI:
10.1016/j.ecoenv.2021.112642
Dostęp URL:
https://doaj.org/article/cf16f0399a004397917b92bceccbbf05  Link otwiera się w nowym oknie
Numer akcesji:
edsdoj.f16f0399a004397917b92bceccbbf05
Czasopismo naukowe
Quantification of source-specific health risks of PM2.5 plays an essential role in health-oriented air pollution control. However, there is limited evidence supporting the source-based risk apportionment of particle-bound metals. In this study, source-specific cancer and non-cancer risk characterization of 12 particle-bound metals was performed in the Pearl River Delta (PRD) region, China. A combination of health risk assessment model and receptor-based source apportionment modeling with positive matrix factorization (PMF) was applied for characterizing the spatial-temporal patterns for inhalation health risks of particle-bound metals in three main city clusters, inland area and coastal area in the region from December 2014 through July 2016. Results showed that the carcinogenic risk of particle-bound metals for adults (4.13 × 10-5) was higher than that for children (9.53 × 10-6) in the PRD region. The highest and significant non-carcinogenic risk was found in the northwest city cluster. Industrial emission (63.3%) were the dominant contributors to the cancer risk, while the main contributors to the non-cancer risk were the vehicle emission source (33.2%) in the dry season and industrial emission (30.8%) in the wet season. Our results provide important evidence for spatial source-specific health risks with temporal characteristics of particle-bound metals in most densely populated areas in the southern China, and suggest that reduction of industrial and vehicle emissions could facilitate more cost-effective PM2.5 control measures to improve human health.

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