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Huan Jing Ke Xue

Title:		[Variation Characteristics and Health Risk Assessment of BTEX in the Atmosphere of Northern Suburb of Nanjing]
Author(s):		Zhang YX; An JL; Wang JY; Wang JX; Shi YZ; Liu JD; Liang JS;
Address:		"Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China"
Journal Title:		Huan Jing Ke Xue
Year:		2017
Volume:		38
Issue:		2
Page Number:		453 - 460
DOI:		10.13227/j.hjkx.201607108
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"BTEX concentrations were determined by GC5000 online gas chromatography in the atmosphere of the north suburb of Nanjing in March 2013 to February 2014, using the EPA human exposure analysis evaluation method for benzene series compounds of volatile organic compounds (VOCs) in health risk assessment. The results showed that the total amount of BTEX showed the variation characteristics of spring > winter > autumn > summer. BTEX concentration was higher in the periods of 07:00-10:00 and 17:00-20:00, and the lowest was detected between 13:00-15:00; At the weekend, the concentration of BTEX was higher than on the working day. The sources of BTEX included traffic sources, industrial sources and solvent evaporation. The HQ of BTEX in all four seasons showed the order of benzene > xylene > ethylbenzene > toluene, and the HQ risk values were within the safety range in all analysis periods. The distribution of R value was winter > autumn > spring > summer, and R was higher than the safety threshold for all the analyses, indicating the existence of carcinogenic risk"
Keywords:		Air Pollutants/*analysis Atmosphere Benzene Benzene Derivatives/*analysis China Cities *Environmental Monitoring Humans Risk Assessment Toluene Volatile Organic Compounds/*analysis Xylenes Btex carcinogenic risk health risk assessment non carcinogenic ris;
Notes:		"MedlineZhang, Yu-Xin An, Jun-Lin Wang, Jian-Yu Wang, Jun-Xiu Shi, Yuan-Zhe Liu, Jing-da Liang, Jing-Shu chi China 2017/02/08 Huan Jing Ke Xue. 2017 Feb 8; 38(2):453-460. doi: 10.13227/j.hjkx.201607108"