Extreme value analysis of air pollution data and their comparison between two large urban regions of South America

• DOI: 10.1016/j.wace.2017.10.004
• Publication Date: 2017-11-10T04:30:53Z
• Authors: Leila Droprinchin...; Caroline Fernanda...; Mauricio Nonato C...; Daniela S. de Alm...; Silvano Cesar da ...; Taciana Albuquerque; Vanessa Silveira ...; Edmilson Dias de ...; Maria de Fátima A...; Jorge Alberto Mar...
• Keywords: Return period

Sixteen years of hourly atmospheric pollutant data (1996–2011) in the Metropolitan Area São Paulo (MASP), and seven (2005–2011) measured Rio de Janeiro (MARJ), were analyzed order to study extreme pollution events their return period. In addition, objective was compare air quality between two largest Brazilian urban areas provide information for decision makers, government agencies civil society. Generalized Extreme Value (GEV) Pareto Distribution (GPD) applied investigate behavior pollutants these regions. Although GEV GPD are different approaches, they presented similar results. The probability higher concentrations CO, NO, NO2, PM10 PM2.5 more frequent during winter, O3 episodes occur most frequently summer MASP. On other hand, there is no seasonally defined MARJ pollutants, with presenting shortest period high concentrations. general, Ibirapuera Campos Elísios stations present highest probabilities MASP MARJ, respectively. When regions compared, all except NO; while those episodes, comparison pollutants.