title: Household air pollution and personal exposure risk of polycyclic aromatic hydrocarbons among rural residents in Shanxi, China.
abstract: Polycyclic aromatic hydrocarbons (PAHs) are a group of pollutants of widespread concerns. Gaseous and size-segregated particulate-phase PAHs were collected in indoor and outdoor air in rural households. Personal exposure was measured and compared to the ingestion exposure. The average concentrations of 28 parent PAHs and benzo(a)pyrene (BaP) were 9000 ± 8390 and 131 ± 236 ng/m(3) for kitchen, 2590 ± 2270 and 43 ± 95 ng/m(3) for living room, and 2800 ± 3890 and 1.6 ± 0.7 ng/m(3) for outdoor air, respectively. The mass percent of high molecular weight (HMW) compounds with 5-6 rings contributed 1.3% to total 28 parent PAHs. Relatively higher fractions of HMW PAHs were found in indoor air compared to outdoor air. Majorities of particle-bound PAHs were found in the finest PM0.25 , and the highest levels of fine PM0.25 -bound PAHs were in the kitchen using peat and wood as energy sources. The 24-h personal PAH exposure concentration was 2100 ± 1300 ng/m(3) . Considering energies, exposures to those using wood were the highest. The PAH inhalation exposure comprised up to about 30% in total PAH exposure through food ingestion and inhalation, and the population attributable fraction (PAF) for lung cancer in the region was 0.85%. The risks for inhaled and ingested intakes of PAHs were 1.0 × 10(-5) and 1.1 × 10(-5) , respectively.
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: Y
authors: Y
authors: Chen
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.|Jiangsu Provincial Laboratory of Environmental Engineering, Jiangsu Academy of Environmental Sciences, Nanjing, China.
authors: G
authors: G
authors: Shen
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: Y
authors: Y
authors: Huang
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: Y
authors: Y
authors: Zhang
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: Y
authors: Y
authors: Han
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: R
authors: R
authors: Wang
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: H
authors: H
authors: Shen
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: S
authors: S
authors: Su
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: N
authors: N
authors: Lin
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: D
authors: D
authors: Zhu
authors: Institute of Population Research, Peking University, Beijing, China.
authors: L
authors: L
authors: Pei
authors: Institute of Population Research, Peking University, Beijing, China.
authors: X
authors: X
authors: Zheng
authors: Institute of Population Research, Peking University, Beijing, China.
authors: J
authors: J
authors: Wu
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: X
authors: X
authors: Wang
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: W
authors: W
authors: Liu
authors: Consortium on Health, Environment, Education and Research (CHEER), Department of Science and Environmental Studies, Hong Kong Institute of Education, Hong Kong, China.
authors: M
authors: M
authors: Wong
authors: Laboratory of Earth Surface Processes, College of Urban and Environmental Science, Peking University, Beijing, China.
authors: S
authors: S
authors: Tao
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis / Q000706:statistics & numerical data*; D002681:China; D004784:Environmental Monitoring; D019570:Inhalation Exposure / Q000032:analysis / Q000706:statistics & numerical data*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment; D012424:Rural Population
chemical_list: D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons
keywords: Cancer risks; Cooking fuel; Dietary exposure; Household air pollution; Inhaled exposure; Polycyclic aromatic hydrocarbons