Status: this preprint has been withdrawn by the authors.
Experimental and model assessment of PM2.5 and BC emissions and concentrations in a Brazilian city – the Curitiba case study
Lars Gidhagen,Patricia Krecl,Admir Créso Targino,Gabriela Polezer,Ricardo H. M. Godoi,Francisco Castelhano,Erika Felix,Yago Alonso Cipoli,Francisco Malucelli,Alyson Wolf,Marcelo Alonso,David Segersson,Jorge Humberto Amorim,and Francisco Mendonça
Swedish Meteorological and Hydrological Institute (SMHI), Norrköping, Sweden
Federal University of Paraná, Department of Geography, Curitiba, PR, Brazil
Abstract. Data on airborne fine particle emissions and concentrations in cities are valuable to traffic and air quality managers, urban planners and landscape architects, health practitioners, researchers, and ultimately to legislators and decision makers. This study aimed at determining the emissions and ambient concentrations of black carbon (BC) and fine particles (PM2.5) in the city of Curitiba, southern Brazil. The methodology applied combined a month-long monitoring campaign that included both fixed and mobile instruments, the development of emission inventories, and the dispersion simulation from the regional down to the street scale.
The mean urban background PM2.5 concentrations during the campaign were below 10 µg m−3 in Curitiba city center, but two- to three-fold higher in a residential area, indicating the presence of unidentified local sources, possibly linked to wood combustion. Mean BC concentrations seemed to be more uniformly distributed over the city, with urban background levels around 2 µg m−3, which rose to about 5 µg m−3 in heavily trafficked street canyons. The dispersion modeling also showed high PM2.5 and BC concentrations along the heavily transited ring road and over the industrial area southwest of Curitiba. However, the lack of in situ data over this area prevented the corroboration of the model outputs. The integrated approach used in this study can be implemented in other Brazilian cities as long as an open data policy and a close cooperation between municipal authorities and academia can be achieved.
This preprint has been withdrawn.
How to cite. Gidhagen, L., Krecl, P., Targino, A. C., Polezer, G., Godoi, R. H. M., Castelhano, F., Felix, E., Cipoli, Y. A., Malucelli, F., Wolf, A., Alonso, M., Segersson, D., Amorim, J. H., and Mendonça, F.: Experimental and model assessment of PM2.5 and BC emissions and concentrations in a Brazilian city – the Curitiba case study, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2018-1094, 2018.
Received: 12 Oct 2018 – Discussion started: 10 Dec 2018
Exposure to atmospheric fine particles constitutes a threat to health for urban citizens. Data on airborne fine particle emissions and concentrations in cities are valuable to traffic and air quality managers, urban planners, health practitioners, as well as to legislators and decision makers, however this type of data are lacking in most Brazilian cities. The integrated and comparatively rapid methodology described can be applied to other cities requiring a diagnostic air pollution assessment.
Exposure to atmospheric fine particles constitutes a threat to health for urban citizens. Data...