Study on health risk assessment of aromatic hydrocarbons from a typical oil refinery in Pearl River Delta, China
CHEN Dan1,2, ZHANG Zhi-juan2,3, GAO Fei-long1,2, LI Qin-qin1,2, GU Ying-gang2,3, WANG Bo-guang1,2,3,4
1. Institute for Environment and Climate Research, Jinan University, Guangzhou 510632, China;
2. Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China;
3. Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangzhou 510632, China;
4. Research Center on Low-carbon Economy for Guangzhou Region, Jinan University, Guangzhou 510632, China
To investigate the emission characteristics of BTEX (benzene, toluene, ethylbenzene, m/p-xylene, o-xylene) in domestic refineries and their impact on health, the aromatic hydrocarbons around the installation facilities of a typical oil refinery in Pearl River Delta (PRD) was collected in November 2015. Then the aromatic hydrocarbons was tested using the Pre-concentration-GC-MS method. Furthermore, the USEPA's human exposure assessment model was applied to evaluate the human health risks of BTEX in the refinery. Results showed that, the concentrations of VOCs emitted from atmospheric and vacuum distillation unit (AVDU), catalytic cracking unit (CCU), methyl tertiary butyl ether (MTBE), catalytic reforming unit (CRU), aromatic combination unit (ACU) and delayed coking unit (DCU) were (239.5±159.5) μg/m3, (149.9±36) μg/m3, (313.8±373.8) μg/m3, (136.3±12.8) μg/m3, (103.5±92) μg/m3, (116.9±102.8) μg/m3, respectively. Moreover, the risk assessment results presented that the non-carcinogenic risk indexes of BTEX ranged from 1.0×10-3~ 1.0×10-1 by inhalation exposure, and 1.0×10-9~1.0×10-7 by dermal exposure, indicating that the non-carcinogenic risk indexes of the BTEX emitted from the six facilities were all lower than 1. Thus, it suggested that there was no significant effect on the human health considering the non-carcinogenic risk. On the other hand, the carcinogenic risk indexes of the BTEX were all in the range from 1.0×10-6~1.0×10-5 by inhalation exposure and 1.0×10-12~1.0×10-11 by dermal exposure. The carcinogenic risk indexes of benzene and ethylbenzene of the six facilities all exceeded the acceptable EPA human cancer risk value (1.0×10-6).The risks of dermal exposure showed the same trend as inhalation exposure, but the level was much lower than that of inhalation exposure, which accounted the total risk value of less than 0.001%. Therefore, it can be concluded that the inhalation exposure of the BTEX was the dominant pathway.
陈丹, 张志娟, 高飞龙, 李勤勤, 古颖纲, 王伯光. 珠江三角洲某炼油厂苯系物的健康风险评价[J]. 中国环境科学, 2017, 37(5): 1961-1970.
CHEN Dan, ZHANG Zhi-juan, GAO Fei-long, LI Qin-qin, GU Ying-gang, WANG Bo-guang. Study on health risk assessment of aromatic hydrocarbons from a typical oil refinery in Pearl River Delta, China. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(5): 1961-1970.
Wang S Y, Wu D W, Wang X M, et al. Relative contributions of secondary organic aerosol formation from toluene, xylenes, isoprene, and monoterpenes in Hong Kong and Guangzhou in the Pearl River Delta, China: an emission-based box modeling study [J]. Journal of Geophysical Research-Atmospheres, 2013,118(2): 507-519.
[2]
Kuo Y, Chiu C, Yu H. Influences of ambient air pollutants and meteorological conditions on ozone variations in Kaohsiung, Taiwan [J]. Stochastic Environmental Research And Risk Assessment, 2014,29(3):1037-1050.
Lyu X P, Chen N, Guo H, et al. Ambient volatile organic compounds and their effect on ozone production in Wuhan, central China [J]. Science of the Total Environment, 2016,54(1): 200-209.
Lin T Y, Sree U, Tseng SH, et al. Volatile organic compound concentrations in ambient air of kaohsiung petroleum refinery in Taiwan [J]. Atmospheric Environment, 2004,38(25):4111-4122.
[7]
Ras M, Marce R, Borrull F. Characterization of ozone precursor volatile organic compounds in urban atmospheres and around the petrochemical industry in the Tarragona region [J]. Science of the Total Environment, 2009,407(14):4312-4319.
[8]
Bale A S, Meacham C A, Benignus V A, et al. Volatile organic compounds inhibit human and rat neuronal nicotinic acetylcholine receptors expressed in xenopus oocytes [J]. Toxicology And Applied Pharmacology, 2005,205(1):77-88.
[9]
Smith M T, Zhang L, Mchale C M, et al. Benzene, the exposome and future investigations of leukemia etiology [J]. Chemico-Biological Interactions, 2011,192(1):155-159.
[10]
Rumchev K, Spickett J, Bulsara M, et al. Association of domestic exposure to volatile organic compounds with asthma in young children [J]. Thorax, 2004,59(9):746-751.
[11]
Fishbein L. An overview of environmental and toxicological aspects of aromatic hydrocarbons [J]. Science of the Total Environment, 1984,40(1):189-218.
[12]
Snyder R E. Benzene's toxicity: A consolidated short review of human and animal studies by ha khan [J]. Human & Experimental Toxicology, 2007,26(9):687-696.
[13]
Kabir E, Kim K. An on-line analysis of 7odorous volatile organic compounds (VOCs) in the ambient air surrounding a large industrial complex [J]. Atmospheric Environment, 2010,44(29): 3492-3502.
[14]
Kim K H, Jo S H, Song H C, et al. Diagnostic analysis of offensive odorants in a large municipal waste treatment plant in an urban area [J]. International Journal Of Environmental Science And Technolory, 2012,10(2):261-274.
Pan Y, Liu Q, Liu F F, et al. Regional assessment of ambient volatile organic compounds from biopharmaceutical R & D complex [J]. Science of the Total Environment, 2011,409(3): 4289-4296.
[17]
Shie R, Chan C.Tracking hazardous air pollutants from a refinery fire by applying on-line and off-line air monitoring and back trajectory modeling [J]. Journal of Hazard Material, 2013,261:72-82.
[18]
Chen C L, Fang H Y, Shu M. Source location and characterization of volatile organic compound emissions at a petrochemical plant in Kaohsiung, Taiwan [J]. Journal of the Air & Waste Management Association , 2005,55(10):1487-1497.
[19]
Chen C L, Shu C M, Fang H Y. Location and characterization of emission sources for airborne volatile organic compounds inside a refinery in Taiwan [J]. Environmental Monitoring and Assessment, 2006,120(1):487-498.
[20]
Liu Y, Shao M, Fu LL, et al. Source profiles of volatile organic compounds (VOCs) measured in China:Part I [J]. Atmospheric Environment, 2008,42(25):6247-6260.
Wei W, Cheng S, Li G, et al. Characteritics of volutile organic compounds (VOCs) emitted from a petroleum refinery in Beijing, China [J]. Atmospheric Environment, 2014,89(3):358-366.
[23]
Mo Z, Shao M, Lu S, et al. Process-specific emission characteristics of volatile organic compounds(VOCs) from petrochemical facilities in the Yangtze River Delta, China [J]. Science of the Total Environment, 2015,53(3):422-431.
[24]
Zheng J, Shao M, Che W, et al. Speciated VOC Emission Inventory and Spatial Patterns of Ozone Formation Potential in the Pearl River Delta, China [J]. Environmental Science & Technology, 2009,43(22):8580-8586.
Zhang Z J, Wang H, Chen D, et al. Emission characteristics of volutile organic compounds and their secondary organic aerosol formation potentials from a petroleum refinery in Pearl River Delta, China [J]. Science of the Total Environment, 2017,584 (585):1162-1174.
[29]
Axelsson G, Barregard L, Holmberg E, et al. Cancer incidence in a petrochemical industry area in sweden [J]. Science of The Total Environment, 2010,408(20):4482-4487.
[30]
Rusconi F, Catelan D, Accetta G, et al. Asthma symptoms, lung function, and markers of oxidative stress and inflammation in children exposed to oil refinery pollution [J]. Journal Of Asthma, 2011,48(1):84-90.
USEPA. Risk assessment guidance for superfund volume I: human Health evaluation manual (Part A) [R]. Washington, DC: USEPA, office of emergency and remedial response, 1989.