Seasonal patterns in rice and wheat residue burning and surface PM2.5 concentration in northern India

dc.creatorMontes, C.
dc.creatorSapkota, T.B.
dc.creatorSingh, B.
dc.date2022-02-09T01:25:16Z
dc.date2022-02-09T01:25:16Z
dc.date2022
dc.date.accessioned2023-07-17T20:08:54Z
dc.date.available2023-07-17T20:08:54Z
dc.identifierhttps://hdl.handle.net/10883/21969
dc.identifier10.1016/j.aeaoa.2022.100154
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7513736
dc.descriptionRice-Wheat production system of the Indo-Gangetic Plain (IGP) in northern India generates large amounts of crop residues annually, substantial amount of which is burned in-situ. Due to this, people in this region and nearby cities are exposed to extremely high concentrations of atmospheric pollutants, especially in late autumn to winter. Multiple factors affect air quality, the main ones being pollutant emissions and meteorology. We generated a high-resolution (0.05° × 0.05°) multi-year (2012–2020) fine particular matter (PM2.5) dataset of pollutant emissions from wheat and rice residue burning for the IGP by combining production data and satellite active fires from the Visible Infrared Imaging Radiometer Suite (VIIRS) 375-m product. We used surface PM2.5 concentrations and meteorological data from Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) atmospheric reanalysis to characterize the seasonal PM2.5 concentrations and their relationships with anomalies in meteorological conditions. Results showed a much higher number of fires during from rice, with an interannual average of 79,385 total fires versus 33,096 from wheat. Emissions are higher during the rice harvest period: 406 Gg/year versus 245 Gg/year, respectively for rice and wheat. Emissions and PM2.5 concentrations from rice harvest are higher than those of wheat as a consequence of a higher number of fire spots, emissions, and atmospheric conditions that prevent their dispersion. PM2.5 concentrations are in addition strongly related to the amount of biomass burned and the number of fires and their intensity. In terms of meteorological anomalies, the planetary boundary layer height, wind speed and the surface thermal inversion strength have a stronger association with PM2.5 concentration during the rice residue burning period. Conversely, PM2.5 concentration and emissions anomalies during the wheat harvest shows a stronger correlation with factors associated with the amount of residues burned in the field.
dc.languageEnglish
dc.publisherElsevier
dc.relationhttps://www.sciencedirect.com/science/article/pii/S2590162122000089?via%3Dihub#appsec1
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source13
dc.source2590-1621
dc.sourceAtmospheric Environment: X
dc.source100154
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectBiomass Burning
dc.subjectEmission Inventory
dc.subjectActive Fires
dc.subjectAIR QUALITY
dc.subjectBIOMASS
dc.subjectBURNING
dc.subjectEMISSION
dc.subjectFIRES
dc.titleSeasonal patterns in rice and wheat residue burning and surface PM2.5 concentration in northern India
dc.typeArticle
dc.typePublished Version
dc.coverageSouth Asia
dc.coverageUnited Kingdom


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