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Sustainability 2016, 8(7), 636;

The Effects of Bus Ridership on Airborne Particulate Matter (PM10) Concentrations

Department of Urban Design and Planning, Hongik University, 94 Wausan-ro, Mapo-gu, Seoul 121-791, Korea
Authors to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Received: 3 April 2016 / Revised: 30 June 2016 / Accepted: 1 July 2016 / Published: 5 July 2016
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Air pollution caused by rapid urbanization and the increased use of private vehicles seriously affects citizens’ health. In order to alleviate air pollution, many cities have replaced diesel buses with compressed natural gas (CNG) buses that emit less exhaust gas. Urban planning strategies such as transit-oriented development (TOD) posit that reducing private vehicle use and increasing public transportation use would reduce air pollution levels. The present study examined the effects of bus ridership on airborne particulate matter (PM10) concentrations in the capital region of Korea. We interpolated the levels of PM10 from 128 air pollution monitoring stations, utilizing the Kriging method. Spatial regression models were used to estimate the impact of bus ridership on PM10 levels, controlling for physical environment attributes and socio-economic factors. The analysis identified that PM10 concentration levels tend to be lower in areas with greater bus ridership. This result implies that urban and transportation policies designed to promote public transportation may be effective strategies for reducing air pollution. View Full-Text
Keywords: airborne particulate matter; bus ridership; air pollution; urban form; spatial model airborne particulate matter; bus ridership; air pollution; urban form; spatial model

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Her, J.; Park, S.; Lee, J.S. The Effects of Bus Ridership on Airborne Particulate Matter (PM10) Concentrations. Sustainability 2016, 8, 636.

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