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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.
Dat, Nguyen Duy; Thuan, Ngo Thi; Hoang, Nhung Thi-Tuyet; Tran, Hiep Ngoc; Hien, To Thi; Tran, Khoi Tien; Chang, Moo Been.
Afiliación
  • Dat ND; Faculty of Chemical and Food Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam, 700000.
  • Thuan NT; Department of Environmental Engineering, International University, Linh TrungWard, Quarter 6Thu Duc City, Ho Chi Minh City, Vietnam. ntthuan@hcmiu.edu.vn.
  • Hoang NT; Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam. ntthuan@hcmiu.edu.vn.
  • Tran HN; Faculty of Chemical and Food Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam, 700000.
  • Hien TT; Faculty of Chemical and Food Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam, 700000.
  • Tran KT; Vietnam National University, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam.
  • Chang MB; Faculty of Environmental Science, University of Science, Ward 4, District 5, Ho Chi Minh City, Vietnam.
Environ Sci Pollut Res Int ; 29(29): 44054-44066, 2022 Jun.
Article en En | MEDLINE | ID: mdl-35122647
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Hidrocarburos Policíclicos Aromáticos / Contaminantes Atmosféricos / Neoplasias Pulmonares Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Child / Humans País/Región como asunto: Asia Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2022 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Hidrocarburos Policíclicos Aromáticos / Contaminantes Atmosféricos / Neoplasias Pulmonares Tipo de estudio: Etiology_studies / Risk_factors_studies Límite: Child / Humans País/Región como asunto: Asia Idioma: En Revista: Environ Sci Pollut Res Int Asunto de la revista: SAUDE AMBIENTAL / TOXICOLOGIA Año: 2022 Tipo del documento: Article Pais de publicación: Alemania