Environmental Monitoring of Nitrogen Dioxide (NO2) in the Urban Area of Porto Velho - RO using Passive Samplers

• Autor(a) principal: Souza, Robison Costa
• Data de Publicação: 2020
• Outros Autores: Azevedo, Mariangela Soares, Justina, Eloiza Della
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Geografia (Londrina)
• Texto Completo: https://ojs.uel.br/revistas/uel/index.php/geografia/article/view/39112
• topic: Particulate material; Passive sampler; Nitrogen dioxide.; Material particulado; Muestra pasiva; Dióxido de nitrógeno.; Material particulado; Amostrador passivo; Dióxido de nitrogênio.

The cost of realization is one of the aspects that interfere with the amount of research on air quality in the State of Rondônia. In Porto Velho, this negative statistic remains, which makes it difficult for interested parties to access harmful gas indices. Based on this assumption, this study aimed to carry out environmental monitoring of air quality in Porto Velho, using the passive sampling methodology for this purpose, in order to measure the levels of nitrogen dioxide. The main sources of NO2 are the burning of biomass and vehicles, the gas is responsible for respiratory problems and allergies. In the research five points were selected and the results compared to the Brazilian environmental legislation. In the results, points 1,2,3,4 and 5 obtained averages of 6.82 µg / m³; 7.21µg / m³; 10.77µg / m³; 8.79µg / m³; 9.82µg / m³ respectively, demonstrating that the levels during the research were within the environmental standards of 100µg / m³. In the results, the efficiency of the methodology was demonstrated, comparing it with tests carried out by active equipment. It was possible to conclude that passive samplers are an accessible alternative both to detect various gases and to monitor air quality in cities in the state of Rondônia and throughout Brazil.