Temporal Characteristics of Brown Carbon over the Central Indo-Gangetic Plain

Environmental Science & Technology
Rangu SatishNeeraj Rastogi

Abstract

Recent global models estimate that light absorption by brown carbon (BrC) in several regions of the world is ∼30-70% of that due to black carbon (BC). It is, therefore, important to understand its sources and characteristics on temporal and spatial scales. In this study, we conducted semicontinuous measurements of water-soluble organic carbon (WSOC) and BrC using particle-into-liquid sampler coupled with a liquid waveguide capillary cell and total organic carbon analyzer (PILS-LWCC-TOC) over Kanpur (26.5°N, 80.3°E, 142 m amsl) during a winter season (December 2015 to February 2016). In addition, mass concentrations of organic and inorganic aerosol and BC were also measured. Diurnal variability in the absorption coefficient of BrC at 365 nm (babs_365) showed higher values (35 ± 21 Mm(-1)) during late evening to early morning hours and was attributed to primary emissions from biomass burning (BB) and fossil fuel burning (FFB). The babs_365 reduced by more than 80% as the day progressed, which was ascribed to photo bleaching/volatilization of BrC and/or due to rising boundary layer height. Further, diurnal variability in the ratios of babs_405/babs_365 and babs_420/babs_365 suggests that the BrC composition was not uniform through...Continue Reading

References

Oct 23, 2001·Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health·M L Mendoza-MagañaS H Dueñas-Jiménez
Oct 5, 2007·Analytical Chemistry·Allison C AikenJose L Jimenez
Dec 17, 2009·Science·J L JimenezD R Worsnop
Jul 28, 2011·Environmental Science & Technology·D S KaulJ L Collett
Dec 20, 2013·Environmental Science & Technology·Michelle H PowelsonDavid O De Haan
Feb 27, 2015·Chemical Reviews·Alexander LaskinSergey A Nizkorodov
Aug 4, 2015·Environmental Science & Technology·P M ShamjadM H Bergin
Oct 28, 2015·Environmental Science & Technology·Peng LinAlexander Laskin
Sep 3, 2016·The Science of the Total Environment·Abhishek ChakrabortyS N Tripathi
Feb 16, 2017·Environmental Science & Technology·Robert A Di LorenzoCora J Young
Mar 21, 2017·Environmental Science & Technology·Sri Hapsari BudisulistioriniMikinori Kuwata

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Citations

Jul 21, 2020·Environmental Science. Processes & Impacts·Poonam BikkinaS Kuswanth Kumar
Mar 5, 2019·Aerosol Science and Technology : the Journal of the American Association for Aerosol Research·Anna WonaschuetzRegina Hitzenberger
Jun 14, 2020·Environmental Science and Pollution Research International·Rangu SatishDarshan Singh
Dec 4, 2019·The Science of the Total Environment·E LiakakouN Mihalopoulos
Feb 16, 2020·The Science of the Total Environment·Archita RanaSayantan Sarkar
Jul 3, 2021·The Science of the Total Environment·Neeraj RastogiAndre S H Prevot
Sep 29, 2021·The Science of the Total Environment·Yuan GaoJunji Cao
Nov 9, 2021·Environmental Science and Pollution Research International·Farzana RunaAbdus Salam

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