Gaseous contaminants/air pollutants in Brazilian urban centers

In 2018, ambient air pollution caused 4.2 million deaths worldwide. This work comparatively evaluated the concentrations of 16 atmospheric pollutants / gaseous contaminants from 5 Brazilian urban centers (São Paulo, Salvador, Rio de Janeiro, Belo Horizonte e Londrina), with intense vehicular flow and different characteristics, such as location type (coastal or non-coastal), demographic density and weather conditions, use of passive sampling. Six simultaneous passive sampling campaigns were performed using the AnalyseAr kit for consecutive periods of 7 and 14 days.