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Huan Jing Ke Xue

Title:		[Emission characteristics and safety evaluation of volatile organic compounds in manufacturing processes of automotive coatings]
Author(s):		Zeng PY; Li JJ; Liao DQ; Tu X; Xu MY; Sun GP;
Address:
Journal Title:		Huan Jing Ke Xue
Year:		2013
Volume:		34
Issue:		12
Page Number:		4592 - 4598
DOI:
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"Emission characteristics of volatile organic compounds (VOCs) were investigated in an automotive coating manufacturing enterprise. Air samples were taken from eight different manufacturing areas in three workshops, and the species of VOCs and their concentrations were measured by gas chromatography-mass spectrometry (GC-MS). Safety evaluation was also conducted by comparing the concentration of VOCs with the permissible concentration-short term exposure limit (PC-STEL) regulated by the Ministry of Health. The results showed that fifteen VOCs were detected in the indoor air of the automotive coatings workshop, including benzene, toluene, ethylbenzene, xylene, ethyl acetate, butyl acetate, methyl isobutyl ketone, propylene glycol monomethyl ether acetate, trimethylbenzene and ethylene glycol monobutyl ether, Their concentrations widely ranged from 0.51 to 593.14 mg x m(-3). The concentrations of TVOCs were significantly different among different manufacturing processes. Even in the same manufacturing process, the concentrations of each component measured at different times were also greatly different. The predominant VOCs of indoor air in the workshop were identified to be ethylbenzene and butyl acetate. The concentrations of most VOCs exceeded the occupational exposure limits, so the corresponding control measures should be taken to protect the health of the workers"
Keywords:		Air Pollutants/*analysis Automobiles Benzene/analysis Benzene Derivatives/analysis *Environmental Monitoring Gas Chromatography-Mass Spectrometry Humans Manufacturing Industry *Occupational Exposure Safety Threshold Limit Values Toluene/analysis Volatile;
Notes:		"MedlineZeng, Pei-Yuan Li, Jian-Jun Liao, Dong-Qi Tu, Xiang Xu, Mei-Ying Sun, Guo-Ping chi China 2014/03/20 Huan Jing Ke Xue. 2013 Dec; 34(12):4592-8"