Deterioration of air quality due to the increase in atmospheric emissions from biomass burning (BB) is one of the major environmental problems worldwide.In this study,we estimated the contributions of BB to PM2.5 concen-trations in the municipalities of Soledad and Malambo located in the Colombian Caribbean.The evaluation period ranged from February 24 to March 30,2018,a period with a high number of BB events recorded in the surround-ings of the evaluated sites.The contribution of BB to the two sampling sites was estimated using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) dispersion model with forwarding trajectories from each of the burning points identified by satellite images (n =1089).The PM2.5 emissions were determined using the fire radiative power (FRP),obtained by remote-sensing data,and corresponded to the radiant energy released per time unit by burning vegetation.The average PM2.5 concentrations during the evaluation period were 19.91 μg/m3 for Soledad and 22.44 μg/m3 for Malambo.The average contribution of BB to these municipal-ities was 22.8％ and 28.8％,respectively.The methodology used in this study allowed to estimate the contribution of this important source without knowledge of a previous tracer of BB,thereby increasing the use of the proposed procedure worldwide.This information would enable the implementation of effective mitigation,thereby diminishing the adverse impact of PM2.5 on the health of the population.

Jehison Bola(n)o-Truyol;Ismael L.Schneider;Heidis Cano Cuadro;Jorge D.Bola(n)o-Truyol;Marcos L.S.Oliveira

Department of Civil and Environmental,Universidad de la Costa,CUC,Calle 58 # 55-66,Barranquilla,Atlántico,Colombia;Department of Productivity and Innovation,Universidad de la Costa,CUC,Calle 58 # 55-66,Barranquilla,Atlántico,Colombia;Faculdade Meridional IMED,304 Passo Fundo,RS 99070-220,Brazil;Universidad de Lima,Avenida Javier Prado Este 4600,Santiago de Surco 1503,Peru

地学前缘（英文版）

[1]Jehison Bola(n)o-Truyol;Ismael L.Schneider;Heidis Cano Cuadro;Jorge D.Bola(n)o-Truyol;Marcos L.S.Oliveira-.Estimation of the impact of biomass burning based on regional transport of PM2.5 in the Colombian Caribbean)[J].地学前缘（英文版）,2022(01):430-436

Soledad,Malambo

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