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Huan Jing Ke Xue

Title:		[Measurement Analysis and Superposed Effect of Residential Indoor Air Pollutants in Xi'an]
Author(s):		Wang XR; Fan H; Fan J; Shen ZX;
Address:		"Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China"
Journal Title:		Huan Jing Ke Xue
Year:		2022
Volume:		43
Issue:		4
Page Number:		1814 - 1820
DOI:		10.13227/j.hjkx.202108307
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"To understand the levels of indoor air pollution and protect public health, our research group conducted monitoring of the concentrations of indoor pollutants (formaldehyde, benzene, toluene, xylene, total volatile organic compounds (TVOC), n-butyl acetate, ethylbenzene, styrene, and undecane) and a health effect assessment for 830 households of Xi'an City from December 2017 to December 2020. Simultaneously, the superposed effect of pollutants was analyzed. The results showed that the exceedance rates of formaldehyde, benzene, toluene, TVOC, and xylene were 92.1%, 39.7%, 11.7%, 8.9%, and 1.2% respectively, among which formaldehyde was the most serious pollutant. There was no significant difference in pollutant concentration and exceedance among different room types. The concentration of pollutants was the highest in summer due to the influence of temperature, humidity, and other factors. The results of the human health risk assessment showed that there were carcinogenic risks of formaldehyde and benzene for different age groups (children, adolescents, adults, and the elderly); children and the elderly were more at risk, whereas xylene, ethylbenzene, and toluene were at low risk (HI<1). The superposed effect of pollutants showed that superposition between indoor pollutants did exist, resulting in the obvious increase in pollutant toxicity. This study provides data reference and scientific basis for the characteristics and healthy effects of indoor residential pollutants in Xi'an City"
Keywords:		"Adolescent Adult Aged *Air Pollutants/analysis *Air Pollution, Indoor/analysis Benzene/analysis Child Environmental Monitoring/methods Formaldehyde/analysis Humans Toluene/analysis *Volatile Organic Compounds/analysis Xylenes benzene formaldehyde health r;"
Notes:		"MedlineWang, Xiu-Ru Fan, Hao Fan, Jie Shen, Zhen-Xing chi China 2022/04/09 Huan Jing Ke Xue. 2022 Apr 8; 43(4):1814-1820. doi: 10.13227/j.hjkx.202108307"