Article: Pollution exposure at bus commuter stations in Guangzhou, China Journal: International Journal of Environmental Technology and Management (IJETM) 2016 Vol.19 No.2 pp.103 - 119 Abstract: This study investigated bus commuter exposure to PM10, NOX, CO and O3, measured alongside traffic corridors at bus stops in Guangzhou, China. The average commuter exposure was 158.4 µg m−3, 192.0 ppb, 2.0 ppm, and 7.7 ppb for PM10, NOX, CO, and O3, respectively. The pollutant concentrations (with the exception of O3) were significantly higher at bus stops compared to those at the city's fixed monitoring station (FMS) that is located away from the bus stop. Combined with other studies, the exposure of bus passengers to PM10, NOX and CO was observed to be higher than it was when they were near the roadside or at the bus stop. The average bus commuter spent 36.4% and 56.1% of the travel time riding the bus and walking along the roadside, implying that the bus commutation and the roadside were two major exposure scenarios encountered during their daily journey. Inderscience Publishers - linking academia, business and industry through research

Title: Pollution exposure at bus commuter stations in Guangzhou, China

Authors: Weijia Xu; Ge Mai; Qianru Zhu; Zhi Yu; Yonghong Liu

Addresses: Institute of Advanced Technology, Sun Yat-sen University, Guangzhou 510275, China; ITS Research Center, School of Engineering, Sun Yat-sen University, Guangzhou 510275, China; School of Urban Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China ' School of Urban Construction, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China ' ITS Research Center, School of Engineering, Sun Yat-sen University, Guangzhou 510275, China ' Institute of Advanced Technology, Sun Yat-sen University, Guangzhou 510275, China; ITS Research Center, School of Engineering, Sun Yat-sen University, Guangzhou 510275, China ' ITS Research Center, School of Engineering, Sun Yat-sen University, Guangzhou 510275, China

Abstract: This study investigated bus commuter exposure to PM₁₀, NO_X, CO and O₃, measured alongside traffic corridors at bus stops in Guangzhou, China. The average commuter exposure was 158.4 µg m⁻³, 192.0 ppb, 2.0 ppm, and 7.7 ppb for PM₁₀, NO_X, CO, and O₃, respectively. The pollutant concentrations (with the exception of O₃) were significantly higher at bus stops compared to those at the city's fixed monitoring station (FMS) that is located away from the bus stop. Combined with other studies, the exposure of bus passengers to PM₁₀, NO_X and CO was observed to be higher than it was when they were near the roadside or at the bus stop. The average bus commuter spent 36.4% and 56.1% of the travel time riding the bus and walking along the roadside, implying that the bus commutation and the roadside were two major exposure scenarios encountered during their daily journey.

Keywords: personal exposure; bus stops; PM10; particulate matter; nitrogen oxides; NOx; carbon monoxide; ozone; bus stations; China; air pollution; air quality; bus commuters; bus passengers.

DOI: 10.1504/IJETM.2016.077222

International Journal of Environmental Technology and Management, 2016 Vol.19 No.2, pp.103 - 119

Accepted: 22 Nov 2015
Published online: 24 Jun 2016 *

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Title: Pollution exposure at bus commuter stations in Guangzhou, China

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