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http://hdl.handle.net/123456789/4358
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DC Field | Value | Language |
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dc.contributor.author | Sinha, Vinayak | - |
dc.contributor.author | Sinha, Baerbel | - |
dc.date.accessioned | 2023-08-05T05:36:05Z | - |
dc.date.available | 2023-08-05T05:36:05Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Chemosphere, 273, 128562. | en_US |
dc.identifier.uri | https://doi.org/10.1016/j.chemosphere.2020.128562 | - |
dc.identifier.uri | http://hdl.handle.net/123456789/4358 | - |
dc.description | Only IISER Mohali authors are available in the record. | en_US |
dc.description.abstract | Air pollution affects not only the air quality in megacities but also in medium and small-sized cities due to rapid urbanization, industrialization, and other anthropogenic activities. From October 28, 2015 to November 3, 2015, the Indo-Gangetic Plains region, including Chandigarh encountered an episode of poor visibility during the daytime. The daily average PM2.5 concentration reached 191 μg/m3, and visibility reduced by ∼2.2 times in the Chandigarh region. PM2.5 concentration was found around 4 times higher than a non-haze day and more than 3 times higher than National Ambient Air Quality Standards for 24 h. A significant correlation between PM2.5 and CO (r: 0.87) during the haze period indicated similarity in their emission sources; which was attributed to the burning of solid organic matter. Further, satellite data and back-trajectory analysis of air masses showed large-scale rice stubble burning in the agricultural fields, adjoining to the city areas. The transboundary movement of air masses below 500 m and meteorological conditions played a major role in building the pollution load in the Chandigarh region. Moreover, the enhanced concentration of biomass burning tracers, i.e., organic carbon (∼3.8 times) and K+ ions (2∼ times) in PM2.5 and acetonitrile (∼2.3 times) in ambient air was observed during the haze event. The study demonstrates how regional emissions and meteorological conditions can affect the air quality in a city; which can be useful for proper planning and mitigation policies to minimize high air pollution episodes. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | Elsevier | en_US |
dc.subject | PM2.5 | en_US |
dc.subject | IGP | en_US |
dc.subject | Crop residue burning | en_US |
dc.subject | Poor visibility | en_US |
dc.subject | Urban haze episode | en_US |
dc.title | Appraisal of regional haze event and its relationship with PM2.5 concentration, crop residue burning and meteorology in Chandigarh, India | en_US |
dc.type | Article | en_US |
Appears in Collections: | Research Articles |
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File | Description | Size | Format | |
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Need To Add…Full Text_PDF..pdf | Only IISER Mohali authors are available in the record. | 15.36 kB | Adobe PDF | View/Open |
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