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Managing future air quality in megacities: Co-benefit assessment for Delhi

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Title Managing future air quality in megacities: Co-benefit assessment for Delhi
 
Creator Bhanarkar, Anil D.
Purohit, Pallav
Rafaj, Peter
Amann, Markus
Bertok, Imrich
Cofala, Janusz
Rao, Padma S.
Vardhan, B.Harsha
Kiesewetter, Gregor
Sander, Robert
Schöpp, Wolfgang
Majumdar, Dipanjali
Srivastava, Anjali
Deshmukh, Swapnil
Kawarti, Amit
Kumar, Rakesh
 
Subject Air Quality
Air Pollution Control
 
Description Urbanization, population and economic growth in Indian megacities like Delhi have resulted in an increase in
energy and transportation demand leading to severe air pollution and related health impacts, as well as to the
rapid growth in the greenhouse gas emissions. In this study, an integrated assessment of air quality and climate
policies for Indian cities – with a particular focus on National Capital Territory of Delhi, has been carried out. We
have developed emission inventory of air pollutants and greenhouse gases for the base year (2010) and evaluated
the impact of current policies on emission projections by 2030 in the business-as-usual scenario. Emissions
of coarse and fine particulate matter are projected to be 51% and 15% higher in 2030 as compared to present. As
the current legislations do not indicate progress towards the achievement of the Indian National Ambient Air
Quality Standards in Delhi, we explored the effectiveness of additional emission control strategies with either
advanced end-of-pipe emission controls or low carbon policies. Relative to the baseline scenario, the set of
alternative policy strategies would reduce emissions rapidly in 2030. The results revealed that air quality policies
under various scenarios could also have co-benefits of reducing carbon emissions. At the same time, the results
suggest that low carbon policies would be more efficient to cut emissions as compared to advanced end-of-pipe
emission control policies. However, their implementation could be limited by the availability of clean fuels. In
the climate policy scenario, carbon emission in 2030 is estimated to decrease by 19% relative to baseline.
Additional controls combined with low carbon policies like controlling non-industrial emissions create an opportunity
to further enhance the scope for co-benefits and to attain the air quality standards in Delhi.
 
Publisher Elsevier
 
Date 2018
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1158/1/1-s2.0-S1352231018303297-main.pdf
Bhanarkar, Anil D. and Purohit, Pallav and Rafaj, Peter and Amann, Markus and Bertok, Imrich and Cofala, Janusz and Rao, Padma S. and Vardhan, B.Harsha and Kiesewetter, Gregor and Sander, Robert and Schöpp, Wolfgang and Majumdar, Dipanjali and Srivastava, Anjali and Deshmukh, Swapnil and Kawarti, Amit and Kumar, Rakesh (2018) Managing future air quality in megacities: Co-benefit assessment for Delhi. Atmospheric Environment, 186. pp. 158-177. ISSN 1352-2310
 
Relation http://www.elsevier.com/locate/atmosenv
http://neeri.csircentral.net/1158/