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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14279

Title: Emission estimates of particulate matter and heavy metals from mobile sources in Delhi
Authors: Kumari, R.
Arun, K.
Int Panis, Luc
Bhola, R.
Issue Date: 2013
Citation: Journal of Environmental Science and Engineering. 55 (2). p. 127-142.
Abstract: An attempt has been made to make a comprehensive emission inventory of particulate matter (PM) of various size fractions and also of heavy metals (HMs) emitted from mobile sources (both exhaust and non-exhaust) from the road transport of Delhi, India (1991-2006). COPERT-III and 4 models were mainly used toestimate these emissions. Results show that the annual exhaust emission of PM of size upto 2.5 micrometer (PM2.5) has increased from 3Gg to 4.5Gg during 1991-2006 irrespective of'improvement in vehicle-technology and fuel use. PM emission from exhaust and non-exhaust sources in general has increased. Heavy commercial vehicles-need attention to control particulate emission as it emerged as a predominant source of PM emissions. Among non-exhaust emissions of total suspended particulate matter (TSP), road-surface wear (~49%) has the prime contribution. As a result of-introduction of unleaded gasoline Pb has significantly reduced (~8 fold) whereas share of Cu and Zn are still considerable. Among non-exhaust sources, Pb release was the most significant one from tyre-wear whereas from break-wear, Cu release was found to be the most significant followed by Pb and Cr + Zn. Because of public health concerns further policies need to be developed to reduce emissions of PM and HMs from the road transport of megacity Delhi.
URI: http://hdl.handle.net/1942/14279
Link to publication: http://www.neeri.res.in/JESE_VOL55-2-APRIL_2013.pdf
ISSN: 1934-8932
Category: A2
Type: Journal Contribution
Appears in Collections: Research publications

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