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Open AccessArticle

Issuances of Automotive Vehicles and the Impacts on Air Quality in the Largest City in the Brazilian Amazon

Technology College, Federal University of Amazonas, Manaus 69080-900, Amazon, Brazil
Nilton Lins University, Manaus 69058-030, Amazon, Brazil
Institute for Systems and Computer Engineering, Technology and Science (INESC TEC), Porto 4200-465, Portugal
Metropolitan University of Manaus, Manaus 69050-000, Amazon, Brazil
Author to whom correspondence should be addressed.
Sustainability 2018, 10(11), 4091;
Received: 15 October 2018 / Revised: 2 November 2018 / Accepted: 3 November 2018 / Published: 8 November 2018
PDF [2980 KB, uploaded 8 November 2018]


Manaus, a city of more than two million people, suffers problems arising from strong sunlight and aggravated by several factors, such as traffic congestion and greenhouse gas emissions generated by evaporation and burning of fuel. The present study examined Carbon Monoxide (CO) and Nitrogen Dioxide (NO2) emissions in an urban area of the city using different methodologies. CO and NO2 were measured using automated and passive analyzers, respectively. Meanwhile, direct monitoring of these pollutants was performed in vehicular sources in the vicinity of sampling locations. Results showed that levels of carbon monoxide vary over time, being higher during peak movement of vehicles. NO2 values have exceeded the recommendations of the World Health Organization (WHO), and monitoring at source showed high levels of CO and NO2 emissions to the atmosphere. View Full-Text
Keywords: vehicle; pollution; measurement and environment vehicle; pollution; measurement and environment

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Cartaxo, E.; Valois, I.; Miranda, V.; Costa, M. Issuances of Automotive Vehicles and the Impacts on Air Quality in the Largest City in the Brazilian Amazon. Sustainability 2018, 10, 4091.

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