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Characteristics of roadside volatile organic compounds in an urban area dominated by gasoline vehicles, a case study in Hanoi by Bich-Thuy Ly; Yoshizumi Kajii; Thi-Yen-Lien Nguyen; Koki Shoji; Dieu-Anh Van; Thi-Nhu-Ngoc Do; Trung-Dung Nghiem; Yosuke Sakamoto is a Environmental Science article available to read on EtoBox.
What is Characteristics of roadside volatile organic compounds in an urban area dominated by gasoline vehicles, a case study in Hanoi about?
Volatile organic compounds (VOCs) are important air pollution issues because of their potential health effects, and the contribution to ground ozone and secondary particulate matter. In this study, 53 VOC species near nine roads in Hanoi were monitored by sampling and analyzed by GC-FID four times per day on weekdays and in the morning on the weekend, from December 2014 to January 2015. In parallel with VOC sampling, vehicle number was counted, and meteorological conditions were recorded. A large share of motorbikes was found, accounted for 82% of overall for all period, and 88% in rush hours. The average TVOC concentration was 305.1 ppb; while those of BTEX were 12.8/27.4/4.8/15.9/6.0 ppb for benzene/toluene/ethylbenzene/m,p-xylenes/o-xylene, respectively. Isopentane was the most abundant species of VOCs. A significant carcinogenic risk of benzene species was found. Ozone formation potential (OFP) of VOCs was of 1752.7 ppb. Levels of VOC species reflected well the transportation volume. Strong correlations between motorbike number related parameters and ethylbenzene were found. High correlations were also found among ethylbenzene and almost all other VOC species. It implied that t
Who reads Characteristics of roadside volatile organic compounds in an urban area dominated by gasoline vehicles, a case study in Hanoi?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Bich-Thuy Ly; Yoshizumi Kajii; Thi-Yen-Lien Nguyen; Koki Shoji; Dieu-Anh Van; Thi-Nhu-Ngoc Do; Trung-Dung Nghiem; Yosuke Sakamoto
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0045-6535)
- Published
- 2020
- Language
- EN
- Field
- Environmental Science (Physical Sciences)