Study of the emissions from moving sources in the metropolitan area of Porto Alegre - RS - Brazil

Química Nova

Teixeira, Elba Calesso¹  Feltes, Sabrina¹  Santana, Eduardo Rodrigo Ramos de¹  Fundação Estadual de Proteção Ambiental Henrique Luis Roessler-RS, Porto Alegre, Brasil¹ 

关键词: vehicular emissions;    mobile sources;    atmospheric pollutants.;   

DOI  :  10.1590/S0100-40422008000200010

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The present study aims at assessing the influence of pollution from mobile sources on air quality in the Metropolitan Area of Porto Alegre by means of an inventory based on methods applied specifically to vehicular emissions. The study uses the method described by CETESB, based on inventories on vehicular emissions, according to USEPA methodology. Following fuel types were taken into account: gasoline (24% ethanol), alcohol, diesel oil, and CNG (compressed natural gas). Results have shown that gasoline-powered vehicles are still responsible for emitting the highest CO and HC concentrations, while diesel-powered vehicles are the source of highest NOx, MP and SOx concentrations.

【 授权许可】

Unknown