Publications by authors named "Kailai He"
Article Synopsis
- VOC samples were collected during four time-intervals in a tunnel in Xi'an, China, revealing that total measured VOC levels were significantly higher during rush hours (1.8 times) compared to non-rush hours, primarily due to vehicle emissions.
- Elevated levels of specific VOCs like ethane and ethylbenzene likely stemmed from compressed natural gas and methanol-fueled vehicles, with BTEX compounds contributing notably to the overall VOC measurements and increasing more during rush times.
- Although noncarcinogenic risks of VOCs were within safety limits, carcinogenic risks were much higher than recommended standards, particularly during rush hours, highlighting the need to consider emissions from new energy vehicles as well.
Background: The health effects of heavy solid fuel use in winter in rural China are of concern. The effects of air pollution resulting from domestic solid fuel combustion in rural households on rural homemakers' biomarkers were revealed in this study.
Methods: In total, 75 female homemakers from rural areas of Guanzhong Basin, the Fenwei Plain, People's Republic of China, were randomly selected and divided into three groups (biomass users, coal users, and nonusers of solid fuel user [control group]).
Cooking emissions are both indoor and outdoor sources for fine particulate matter (PM2.5) but their contributions are often ignored. The PM2.
View Article and Find Full Text PDFDomestic solid fuels combustion produces a mass of fine particulate matter (PM). PM-bound organics, including polycyclic aromatic hydrocarbons (PAHs), oxygenated-PAHs (OPAHs), phthalate esters (PAEs) and hopanes, were quantified in indoor, outdoor and personal exposure samples collected in rural Guanzhong Basin, China. The average concentration of total quantified PAHs in personal exposure samples was 310 ± 443 ng m, 1.
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