| Title: | [Stench Sources and Impact Analysis in Automobile Making] |
| Author(s): | Shi TL; Zhang WX; Chen XF; Zhang JN; Liang XM; Fan LY; Ye DQ; |
| Address: | "School of Environment and Energy, South China University of Technology, Guangzhou 510006, China. National Engineering Laboratory for Volatile Organic Compounds Pollution Control Technology and Equipment, Guangzhou 510006, China. Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China. Guangdong Provincial Environmental Risk Control and Emergency Disposal Engineering Technology Research Center, Guangzhou 510006, China" |
| DOI: | 10.13227/j.hjkx.201705224 |
| ISSN/ISBN: | 0250-3301 (Print) 0250-3301 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) are an important source of industrial stench. This study was aimed at sampling and analyzing the stench source and its impact on the sensitive spot residential areas, concentrating on certain automobile manufacturing enterprise. The odor concentration and VOCs species of each vent stack, plant boundary, and sensitive spot in the enterprise were determined for November 15 and 17, 2016 via qualitative and quantitative analysis using the triangle odor bag method and gas pre-concentration system-gas chromatography-mass spectra. The results show that the odor concentrations of all vent stacks in the original equipment manufacturing plant and the engine plant were below the criterion level, those of the plant boundaries in the engine plant were below the limits, and those of the plant boundaries and sensitive spots in the original equipment manufacturing plant exceeded the allowed standards. A total of 54 VOCs species were identified, including aromatics, halogenated compounds, alkanes, alkene, cycloalkanes, ketones, esters, ethers, alcohols, sulfur compounds, and oxygen ring compounds. Halogenated compounds were the most abundant VOCs species, followed by aromatics. As a result, aromatics and halogenated compounds are the representative odorants in automobile making. 1,3-Butadiene and ethyl toluene were selected to be the typical odorants of sensitive spots according to mass concentration, detector odor threshold, and threshold dilution multiples of characteristic VOCs species in sensitive spots. The results show that the majority of characteristic VOCs species were from paint composition through the qualitative analysis based on paint used in coating shops. 1,3-Butadiene, which contributed the most to odor pollution, excluding the impact of other emission sources on sensitive spots, originates from spraying and drying processes of coating shops in the original equipment manufacturer. It is recommended that the enterprise should adopt environmentally friendly paints with low VOCs components or RTO purification equipment with higher processing efficiency to reduce the impact of stench on the sensitive residential areas from automobile making" |
| Keywords: | industrial stench odor concentration sensitive point threshold dilution multiples volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINEShi, Tian-Li Zhang, Wei-Xia Chen, Xiao-Fang Zhang, Jia-Ni Liang, Xiao-Ming Fan, Li-Ya Ye, Dai-Qi chi English Abstract China 2018/07/03 Huan Jing Ke Xue. 2018 Feb 8; 39(2):557-566. doi: 10.13227/j.hjkx.201705224" |
