IJEP 41(5): 536-541 : Vol. 41 Issue. 5 (May 2021)
1. Graphic Era (Deemed to be University), Dehradun – 248 002, Uttarakhand, India
2. Indian Institute of Technology Roorkee, Roorkee – 247 667, Uttarakhand, India
Amidst growing concern for rising air pollution levels in cities across the globe, this first of its kind research work attempts to study whether the usage of public transportation infrastructure and personal automobiles by citizens has any significant impact on the air pollution levels in a city, taking a sample of 59 urban settlements data points sample from 39 cities across the globe. Variance based structural equation modelling (SEM) procedure is used for estimating a series of relationships among the constructs of public transportation infrastructure, public transportation usage, personal automobiles ownership and environmental air pollution (represented by PM2.5, PM10 and greenhouse gas (GHG) levels) considered in the study and incorporating them into an integrated model. The results suggest that a significant relationship exists between the availability of public transportation infrastructure and its usage by its citizens on their personal automobiles ownership, which, in turn also impacts environmental air pollution levels in a city.
Air pollution, public transportation, Structural equation modeling, PM2.5, PM10, Greenhouse gas
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