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Air quality in mega...
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Bikkina, SrinivasStockholms universitet,Institutionen för miljövetenskap och analytisk kemi
(author)
Air quality in megacity Delhi affected by countryside biomass burning
- Article/chapterEnglish2019
Publisher, publication year, extent ...
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2019-02-25
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Springer Science and Business Media LLC,2019
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-168413
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-168413URI
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https://doi.org/10.1038/s41893-019-0219-0DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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South Asian megacities are strong sources of regional air pollution. Delhi is a key hotspot of health-and climate-impacting black carbon (BC) emissions, affecting environmental sustainability in densely populated northern India. Effective mitigation of BC impact is hampered by highly uncertain emission source estimates. Here, we use dual-carbon isotope fingerprints (delta C-13/Delta C-14) of BC to constrain the seasonal source variability in Delhi. These measurements show that lower BC concentrations in summer are predominantly from fossil fuel sources (similar to 83%). However, large-scale open burning of post-harvest crop residue/wood in nearby rural regions is contributing to severe haze pollution in Delhi during winter and autumn (similar to 42 +/- 17%). Hence, the common conception that megacities affect their surroundings is here amended or seasonally reversed. Therefore, to combat the severe air pollution problems in Delhi and the environmental quality of northern India, current urban efforts need to be complemented with countryside regional mitigation.
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Andersson, AugustStockholms universitet,Institutionen för miljövetenskap och analytisk kemi(Swepub:su)auand
(author)
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Kirillova, Elena N.Stockholms universitet,Institutionen för miljövetenskap och analytisk kemi(Swepub:su)ekiri
(author)
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Holmstrand, HenryStockholms universitet,Institutionen för miljövetenskap och analytisk kemi(Swepub:su)hehol
(author)
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Tiwari, Suresh
(author)
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Srivastava, A. K.
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Bisht, D. S.
(author)
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Gustafsson, ÖrjanStockholms universitet,Institutionen för miljövetenskap och analytisk kemi(Swepub:su)ogust
(author)
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Stockholms universitetInstitutionen för miljövetenskap och analytisk kemi
(creator_code:org_t)
Related titles
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In:Nature Sustainability: Springer Science and Business Media LLC2:3, s. 200-2052398-9629
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