dc.contributor.author | Chetna, NN | |
dc.contributor.author | Dhaka, Surendra K. | |
dc.contributor.author | Walker, Sam-Erik | |
dc.contributor.author | Rawat, Vikas | |
dc.contributor.author | Singh, Narendra | |
dc.date.accessioned | 2024-06-12T08:37:53Z | |
dc.date.available | 2024-06-12T08:37:53Z | |
dc.date.created | 2024-04-22T09:31:14Z | |
dc.date.issued | 2024 | |
dc.identifier.citation | Atmospheric Environment: X. 2024, 22,100255. | en_US |
dc.identifier.issn | 2590-1621 | |
dc.identifier.uri | https://hdl.handle.net/11250/3133666 | |
dc.description.abstract | This study investigates the impact of meteorological variations on the long-term patterns of PM2.5 in Delhi from 2007 to 2022 using the AirGAM 2022r1 model. Generalized Additive Modeling was employed to analyze meteorology-adjusted (removing the influence of inter-annual variations in meteorology) and unadjusted trends (trends without considering meteorology) while addressing auto-correlation. PM2.5 levels showed a modest decline of 14 μg m−3 unadjusted and 18 μg m−3 meteorology-adjusted over the study period. Meteorological conditions and time factors significantly influenced trends. Temperature, wind speed, wind direction, humidity, boundary layer height, medium-height cloud cover, precipitation, and time variables including day-of-week, day-of-year, and overall time, were used as GAM model inputs. The model accounted for 55% of PM2.5 variability (adjusted R-squared = 0.55). Day-of-week and medium-height cloud cover were non-significant, while other covariates were significant (p | en_US |
dc.language.iso | eng | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Long-term meteorology-adjusted and unadjusted trends of PM2.5 using the AirGAM model over Delhi, 2007–2022 | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2024 The Authors. Published by Elsevier Ltd. | en_US |
dc.source.volume | 22 | en_US |
dc.source.journal | Atmospheric Environment: X | en_US |
dc.identifier.doi | 10.1016/j.aeaoa.2024.100255 | |
dc.identifier.cristin | 2263294 | |
dc.source.articlenumber | 100255 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |