Avaliação dos poluentes regulamentados pelo CONAMA 03/1990 e das concentrações dos compostos orgânicos voláteis no entorno dos locais dos jogos olímpicos de 2016.

Abstract

Tropospheric ozone is a secondary pollutant formed by chemical and photochemical reactions between nitrogen oxides (NOx) and volatile organic compounds (VOCs). Most VOCs have adverse effects on human health and the environment. Each VOC reacts with speeds and different mechanisms to form ozone. In the Rio de Janeiro metropolitan area (RMRJ), 77% of the emitted air pollutants come from mobile sources. The Olympic Games 2016 will be held in four major areas of RMRJ. This study determined the concentrations of BTEX and PAHs through active sampling with charcoal cartridge activated for BTEX and XAD-2 resin for PAH in gaseous phase. Samples of VOCs were collected in Barra, Deodoro and Maracana during the months of December 2014 to September 2015. Data of 2014 of regulated pollutants and unregulated automatic two networks monitoring areas close to the Olympic Games were evaluated for diagnostic purposes in air quality. The results indicated that the concentrations of BTEX and PAHs were higher in winter and the Maracana area was the one with the highest concentrations for all evaluated VOCs. The ratio benzene / toluene confirmed the emission source as predominantly vehicular. The diagnosis of air quality showed violations of patterns ozone, especially during the spring and summer of 2014. The prognosis for the areas where the Olympics Games will take place in 2016 during the winter is that there is little or no violation of O3 standards.