DOI: 10.5176/2251-189X_SEES13.44

Authors: Suresh Pandian E, Pratibha Gautam, Asim Kumar Pal


The ambient concentrations of particulate matter (PM10 and PM2.5) in Dhanbad, Jharkhand State, India, are investigated for winter 2011. The impact of traffic road type on suspended particulate matter (SPM) and respirable particulate matter (RPM), at 4 different locations covering 2 roadways and 2 intersections are investigated. The daily average pollutant concentration levels near the roadways are about 251μg/m3 and 144μg/m3 for SPM and RPM, respectively. The daily average pollutant concentration levels near the traffic intersections are about 454μg/m3 and 217μg/m3 for SPM and RPM, respectively. The relative concentration increase of SPM in traffic intersections and roadways as compared to the concentration away from traffic emissions is equal to 106{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465} and 14{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465}, in case of RPM it is equal to 79{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465} and 19{6e6090cdd558c53a8bc18225ef4499fead9160abd3419ad4f137e902b483c465}, respectively. The results indicate that the existence of strong correlation between the traffic road type and particulate emission levels from automobiles. The contribution of non-vehicular sources on total pollutant concentration is verified using modified general finite line source model (M-GFLSM).

Keywords: Particulate matter; Traffic characteristics; Traffic road type; Traffic intersection; Air pollution; GFLSM model;

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