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Characteristics of polycyclic aromatic hydrocarbons in ambient air of a tropical mega-area, Ho Chi Minh City, Vietnam: concentration, distribution, gas/particle partitioning, potential sources and cancer risk assessment.
In: Environmental Science & Pollution Research, Jg. 29 (2022-06-21), Heft 29, S. 44054-44066
Online
academicJournal
Zugriff:
This is the first investigation on overall characteristics of 25 polycyclic aromatic hydrocarbons (PAHs) (15 PAHs regulated by US-EPA (excluding naphthalene) and 16 PAHs recommended by the European Union) in ambient air of Ho Chi Minh City, Vietnam. Their levels, congener profiles, gas/particle partitioning, potential sources of atmospheric PAHs (gas and particulate phases), and lung cancer risks in the dry and rainy seasons were examined. The ∑25 PAH concentration in the dry and rainy seasons ranged from 8.79 to 33.2 ng m−3 and 26.0 to 60.0 ng m−3, respectively. Phenanthrene and Indeno[123-cd]pyrene were major contributors to gaseous and particulate PAHs, respectively, while benzo[c]fluorene was dominant component of the total BaP-TEQ. The ∑16 EU-PAH concentration contributed to 13 ± 2.7% of the total ∑ 25 PAH concentration; however, they composed over 99% of the total ∑ 25 PAH toxic concentration. Adsorption mainly governed the phase partitioning of PAHs because the slope of correlation between logKp and logP0L was steeper than − 1. Vehicular emission was the primary source of PAHs in two seasons; however, PAHs in the dry season were also originated from biomass burning. Assessment of lung cancer risk showed that children possibly exposed to potential lung cancer risk via inhalation. [ABSTRACT FROM AUTHOR]
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Characteristics of polycyclic aromatic hydrocarbons in ambient air of a tropical mega-area, Ho Chi Minh City, Vietnam: concentration, distribution, gas/particle partitioning, potential sources and cancer risk assessment.
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Autor/in / Beteiligte Person: | Dat, Nguyen Duy ; Thuan, Ngo Thi ; Hoang, Nhung Thi-Tuyet ; Tran, Hiep Ngoc ; Hien, To Thi ; Tran, Khoi Tien ; Chang, Moo Been |
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Zeitschrift: | Environmental Science & Pollution Research, Jg. 29 (2022-06-21), Heft 29, S. 44054-44066 |
Veröffentlichung: | 2022 |
Medientyp: | academicJournal |
ISSN: | 0944-1344 (print) |
DOI: | 10.1007/s11356-022-18859-y |
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