Monitoramento da Qualidade do ar no Estado do ACRE - 2019

The report details the implementation of a low-cost sensor network to monitor air quality in Acre, Brazil, finding that many municipalities frequently exceeded WHO safety limits for PM2.5, primarily during the dry season months of August and September.

• In June 2019, the largest air quality monitoring network in the Amazon became operational, consisting of 30 PurpleAir PA-II-SD low-cost sensors distributed across the headquarters of all 22 municipalities in the state of Acre.
• The primary source of air pollution in the Amazon is identified as burnings used for clearing newly deforested areas or renovating pastures and annual agricultural land.
• In 2019, Acre recorded 180,209 hectares (1,802 km2) of burnings in anthropized areas, representing an increase of approximately 80% compared to 2018, with 40% of these related to new deforestation.
• The most critical months for air quality were August and September, with the highest concentrations of particulate matter occurring during the night and early morning hours between 17:00 and 8:00.
• Assis Brasil and Sena Madureira recorded the highest number of days exceeding WHO recommendations (32 days each), while Rodrigues Alves recorded zero days, although the latter suffered from significant data collection failures.

APA

de Melo, A. W. F., da Silva, S. S., Anderson, L. O., Nascimento, V. M. L. D., de Freitas, M. F., Duarte, A. F., & Brown, I. F. (2020). Monitoramento da Qualidade do ar no Estado do ACRE - 2019. Inter-American Institute for Global Change Research. https://iai.int/administrador/assets/images/ckfinder/files/AirQualityReport.pdf

Chicago

de Melo, Antonio Willian Flores, Sonaira Souza da Silva, Liana O. Anderson, Vângela Maria Lima do Nascimento, Marcelo Ferreira de Freitas, Alejandro Fonseca Duarte, and I. Foster Brown. Monitoramento da Qualidade do ar no Estado do ACRE - 2019. Inter-American Institute for Global Change Research, 2020. https://iai.int/administrador/assets/images/ckfinder/files/AirQualityReport.pdf.

Wikipedia

{{cite report |last1=de Melo |first1=Antonio Willian Flores |last2=da Silva |first2=Sonaira Souza |last3=Anderson |first3=Liana O. |last4=Nascimento |first4=Vângela Maria Lima do |last5=de Freitas |first5=Marcelo Ferreira |last6=Duarte |first6=Alejandro Fonseca |last7=Brown |first7=I. Foster |title=Monitoramento da Qualidade do ar no Estado do ACRE - 2019 |publisher=Inter-American Institute for Global Change Research |date=April 2020 |url=https://iai.int/administrador/assets/images/ckfinder/files/AirQualityReport.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{demelo2020monitoramento, author = {de Melo, Antonio Willian Flores and da Silva, Sonaira Souza and Anderson, Liana O. and Nascimento, Vângela Maria Lima do and de Freitas, Marcelo Ferreira and Duarte, Alejandro Fonseca and Brown, I. Foster}, title = {{Monitoramento da Qualidade do ar no Estado do ACRE - 2019}}, institution = {Inter-American Institute for Global Change Research}, year = {2020}, month = apr, url = {https://iai.int/administrador/assets/images/ckfinder/files/AirQualityReport.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }