Palestrante: Angel Liduvino Vara Vela do IAG/USP
Impact of long-range transport of smoke plumes on air quality
over the Metropolitan Area of São Paulo
Nowadays, megacities all over the world are facing serious air quality issues, especially those with regard to the control of secondary pollutants such as tropospheric ozone (O3) but mainly fine particles (PM2.5; ≤ 2.5 µm in diameter), as they play an important role concerning health impacts and climate change. Understanding the evolution of these pollutants in the atmosphere requires the description of emission sources as well as the physicochemical processes involved in their formation and growth. In this study, the Weather Research and Forecasting with Chemistry (WRF-Chem) community model, a state-of-the-art coupled meteorology-chemistry modelling system, along with experimental data collected during the Narrowing the Uncertainties on Aerosol and Climate Change in São Paulo State (NUANCE-SPS) campaigns performed in 2012 and 2014, were used in order to examine the O3 formation as well as aerosol properties over the Metropolitan Area of São Paulo (MASP), in southeastern Brazil, where changes in fuel blend and consumption in recent years have affected the evolution of pollutant concentrations. The combined application of aerosol data and WRF-Chem simulations made it possible to represent some of the most important aerosol properties such as size distribution and cloud condensation nuclei (CCN) activation, besides allowing us to evaluate, by analysing a
case study, the contribution of biomass burning emissions to the O3 and PM2.5 loadings in the MASP.
Seminário: Impact of long-range transport of smoke plumes on air quality over SP elton john | |
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| Science & Technology | Upload TimePublished on 11 Jun 2018 |
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