Volatile Aromatic Compounds in a Light-Duty Vehicle Tunnel in Rio de Janeiro, Brazil

• DOI: 10.1007/s00128-007-9171-1
• Publication Date: 2007-07-17T01:55:39Z
• Authors: M. C. S. Machado; J. C. S. Almeida; E. M. Martins; G. Arbilla
• Keywords: Hydrocarbons, Aromatic; 7. Clean energy; 01 natural sciences; Mass Spectrometry; 13. Climate action; Charcoal; 11. Sustainability; Environmental Pollutants; Adsorption; Organic Chemicals; Volatilization; Brazil; Vehicle Emissions; 0105 earth and related environmental sciences

The city of Rio de Janeiro represents the second largest running fleet in Brazil, roughly 1.9 million passenger cars and commercial vehicles. Presently, 73% of vehicles use gasohol (gasoline with 23% of ethanol), 13% use neat ethanol, 8.5% use compressed natural gas (CNG) and 3.5% diesel (DETRAN 2006). According to the most recent available official emission approximately 76% of the total air pollution load of CO, SO2 ,N O x and PM-10 are direct contributions of the mobile sources. In the case of hydrocarbon gases and CO, 67% and 98%, respectively, come from vehicles (FEEMA 2004). Analysis performed in 1999, considering fueld sold by the