EXPOSURE ASSESSMENT OF BTEX COMPOUNDS AMONG SAFEGUARDS IN UNDERGROUND PARKING GARAGES IN HIGH BUILDINGS IN HANOI

Võ Thị Lệ Hà; Nguyễn Thu Hương; Nguyễn Thị Thu Hằng; Nguyễn Thị Thu Hiền; Nghiêm Trung Dũng; Minoru Yoneda

doi:10.34238/tnu-jst.2020.02.2692

EXPOSURE ASSESSMENT OF BTEX COMPOUNDS AMONG SAFEGUARDS IN UNDERGROUND PARKING GARAGES IN HIGH BUILDINGS IN HANOI

About this article

Received: 21/02/20 Revised: 29/02/20 Published: 29/02/20

Authors

1. Vo Thi Le Ha , School of Environmental Science and Technology - Hanoi University of Science and Technology
2. Nguyen Thu Huong, School of Environmental Science and Technology - Hanoi University of Science and Technology
3. Nguyen Thi Thu Hang, TNU - University of Agricuture and Forest
4. Nguyen Thi Thu Hien, School of Environmental Science and Technology - Hanoi University of Science and Technology
5. Nghiem Trung Dung, School of Environmental Science and Technology - Hanoi University of Science and Technology
6. Minoru Yoneda, Graduate School of Engineering, Kyoto University

Abstract

Multi – storey parking structures have potentially high concentrations of benzene (B), toluene (T), ethyl benzene (E) and xylene (X), as known BTEXs, which could have adverse effects on human health This study aims to estimate BTEX levels and sources and to assess the occupational health risk for safeguards in underground parking garages in high buildings in Hanoi. 27 samples were conducted using active diffusion monitors and analyzed by a GC/FID device. Health risk assessment was conducted using chronic daily intake (CDI) and slope factor (SF). Benzene, toluene and xylene were detected in all selected parking lots. In contrast, those of ethyl benzene were not detected. The mean concentrations were 16.99 µg/m³, 200.36 µg/m³ and 625.22 µg/m³ for benzene, toluene and xylene, respectively. Petroleum vapor and vehicle emission were two main sources to contribute to BTEX compounds. Non- carcinogenic risks from toluene and xylene were low when values of hazard quotient (HQ) were lower than 1. Benzene showed upper-bound lifetime cancer risks that exceeded the US. EPA benchmark of one per million, exposing the moderate risk.

Keywords

Health risk assessment; BTEX; Underground Parking; Exposure; Hanoi.

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References

[1]. V. Q. Truc and N. K. Oanh , “Roadside BTEX and other gaseous air pollutants in relation to emission sources,” Atmospheric Environment, vol. 41, no. 36, pp. 7685-7697, 2017.

[2]. N. T. Lan, N. Q Liem, and N. T. Binh, “Personal exposure to benzene of selected population groups and impact of commuting modes in Ho Chi Minh, Vietnam,” Environmental Pollution, vol.175, pp. 56-63, 2013.

[3]. N. Kanjanasiranont, T. Prueksasit, D. Morknoy, T.Tunsaring, S. Sematong, W. Siriwong, K. Zapaung, and A. Rungsiyothin, “Determination of ambient air concentrations and personal exposure risk levels of outdoor workers to carbonyl compounds and BTEX in the inner city of Bangkok, Thailand,” Atmospheric Pollution Research, vol. 7, no. 1, pp. 268-277, 2016.

[4]. S. Dhawan, A. J. Sebastian A. J and S. John. “Health Risk Assessment of Workers in Underground Parking Due to Exposure to CO and VOC,” International Journal of Engineering Technology Science and Research, vol. 5, no. 1, pp. 1388-1391, 2018.

[5]. A. P. Soldatos, E. B. Bakeas and P. A. Siskos “Occupational exposure to BTEX of workers in car parkings and gasoline service stations in Athens, Greece,” Fresenius Environmental Bulletin, vol. 12, no.9, pp. 1064-1070, 2003.

[6]. United States Environmental Protection Agency (US EPA), Risk Assessment Guidance for superfund Volume 1: Human Health Evaluation Manual, (Part F, Supplemental Guidance for inhalation Risk Assessment)”- EPA-540-R-070-002; EPA: Washington, DC, USA, 2009.

[7]. F. Borhani and A. Noorpoor, “Cancer Risk Assessment Benzene, Toluene, Ethylbenzene and Xylene (BTEX) in the Production of Insulation Bituminous,” Environmental Energy and Economic Research, vol. 1, no. 3, pp. 311-320, 2017.

[8]. B. P Castro, G. M. Souza, G. F. Bauerfeldt, J. D. Fortes and E. M. Martins, “Assessment of the BTEX concentrations and reactivity in a confined parking area in Rio de Janeiro, Brazil,” Atmospheric Environment, vol. 104, pp. 22-26, 2015.

[9]. Ministry of Natural Resources and Environment, QCVN 06: 2009/BTNMT– National Technical Regulation on Hazadous Substances in Ambient Air – QCVN 06: 2009/BTNMT, 2009.

[10]. WHO, Selected Pollutants, WHO Guidelines for indoor air Quality, WHO Regional Office for Europe, Copenhagen, 2010.

[11]. H. Guo, S. C. Lee, and W. M. Li, “Source characterization of BTEX in indoor microenvironments in Hong Kong,” Atmospheric Environment, vol. 37, no. 1, pp. 73-82, 2003.

[12]. W. Loonsamrong, N. Taneepanichskul, S. Puangthongthub and T. Tungsaringkarn, “Health Risk Assessment and BTEX Exposure among Car Park Workers at a Parking Structure in Bangkok, Thailand,” Journal of Health Research, vol. 29, no. 4, pp. 285-292, 2015.

[13]. M. Kitwattanavong, T. Prueksasit, D. Morknoy, T. Tunsaringkarn T and W. Siriwong W., “Health risk assessment of petrol station workers in the inner city of Bangkok, Thailand, to the exposure to BTEX and carbonyl compounds by inhalation - Human and Ecological Risk Assessment,” International Journal, vol. 19, no. 6, pp.1424-1439, 2012.

[14]. G. Gennaro, P. R. Dambruoso, A. D.Gilio, A. Marzocca and M. Tutino, “Indoor and Outdoor Volatile Organic Compounds Monitoring in a Multi-Storey Car Park,” Environmental Engineering & Management Journal (EEMJ), vol. 7. no. 7. pp. 1563-1570, 2015.

[15]. H. Guo, S. C. Zoua, W. Y. Tsai, L. Y.Chan and D. R. Blake, “Emission characteristics of nonmethane hydrocarbons from private cars and taxis at different driving speeds in Hong Kong,” Atmospheric Environment, vol. 45, no. 16, pp. 2711-2721, 2011.

[16]. T. Schmitz, D. Hassel and F. J. Weber, “Determination of VOC - components in the exhaust of gasoline and diesel passenger cars,” Atmospheric Environment, vol. 34, no. 27, pp. 4639-4647, 2000.

[17]. Q. He , Y. Yan , H. Li, Y. Zhang, L. Chen and Y. Wang, “Characteristics and reactivity of volatile organic compounds from non-coal emission sources in China,” Atmospheric Environment, vol. 115, pp. 153-162, 2015.

[18]. Y. Zhang, X. Wang, Z. Zhang. S. Lü, M. Shao, F.S . Lee and J. Yu, “Species profiles and normalized reactivity of volatile organic compounds from gasoline evaporation in China,” Atmospheric Environment, vol. 79. pp. 110-118, 2013.

DOI: https://doi.org/10.34238/tnu-jst.2020.02.2692

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