AIR QUALITY IN THE CITY OF MANAUS: PARTICULATE MATTER AND ITS RELATIONSHIP WITH WILDFIRES

Authors

  • Bruna Larissa Aires de Oliveira Universidade do Estado do Amazonas
  • Rodrigo Augusto Ferreira de Souza Universidade do Estado do Amazonas
  • Rita Valéria Andreoli Universidade do Estado do Amazonas

DOI:

https://doi.org/10.53528/geoconexes.v4i2.155

Keywords:

Particulate matter, wildfires, Amazon

Abstract

The Amazon has been facing forest fires resulting in emissions of pollutants into the atmosphere, impacting air quality and human health. Manaus stands out as a crucial area of study to assess the influence of these fires on air quality. Brazilian regulations recommend a maximum threshold of 25 µg/m³ (in 24 hours) for Fine Particulate Matter (PM2.5) to categorize air as of good quality. Thus, this study aimed to investigate the temporal variability of PM2.5 in the atmosphere of Manaus from 2003 to 2021, to determine if the air pollution levels were within the recommended limits. Data were evaluated using box plot analyses, considering the entire study period as a reference, to assess two periods of social distancing aimed at combating COVID-19. The results indicate that PM2.5 demonstrates a well-defined annual cycle, with concentrations lower than 25 µg/m³ during the rainy season. In the dry season, PM2.5 concentrations exceed the recommended maximum. During periods of social isolation, there was an observed decrease in the average monthly concentration, likely associated with reduced industrial activities and decreased urban mobility.

Author Biographies

Bruna Larissa Aires de Oliveira, Universidade do Estado do Amazonas

Graduanda em Meteorologia pela Universidade do Estado do Amazonas (UEA).

Rodrigo Augusto Ferreira de Souza, Universidade do Estado do Amazonas

Graduado em Física, Doutor em Meteorologia e atua como professor de Meteorologia na UEA

Rita Valéria Andreoli, Universidade do Estado do Amazonas

Graduada em Física, Doutora em Meteorologia e atua como professora de Meteorologia na UEA

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Published

2024-03-16

How to Cite

Oliveira, B. L. A. de, Souza, R. A. F. de, & Andreoli, R. V. (2024). AIR QUALITY IN THE CITY OF MANAUS: PARTICULATE MATTER AND ITS RELATIONSHIP WITH WILDFIRES. Geoconexões Online, 4(2), 108–118. https://doi.org/10.53528/geoconexes.v4i2.155

Issue

Vol. 4 No. 2 (2024): Saúde, Ambiente e Desenvolvimento

Section

Dossiê

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Copyright (c) 2024 Bruna Oliveira; Rodrigo Souza, Rita Andreoli

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