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Title: Observations of particulate matter, NO2, SO2, O3, H2S and selected VOCs at a semi-urban environment in the Amazon region
Authors: Paralovo, Sarah L.
Barbosa, Cybelli G.G.
Carneiro, Isabela P.S.
Kurzlop, Priscila
Borillo, Guilherme C.
Schiochet, Maria Fernanda C.
Godoi, Ana Flávia Locateli
Yamamoto, Carlos Itsuo
Souza, Rodrigo Augusto Ferreira de
Andreoli, Rita Valéria
Ribeiro, Igor Oliveira
Manzi, Antônio Ocimar
Kourtchev, Ivan N.
Bustillos, José Oscar Viega
Martin, Scot T.
Godoi, Ricardo Henrique Moreton
Keywords: Air Quality
Sulfur Dioxide
Amazon Region
Biomass Burning Emissions
Green Oceans
Large Scale Experiments
Mass Concentration
Metropolitan Regions
Particulate Matter
Spatial Heterogeneity
Nitrogen Oxides
Hydrogen Sulfide
Meta Xylene
Nitrogen Dioxide
Ortho Xylene
Para Xylene
Sulfur Dioxide
Volatile Organic Compound
Concentration (composition)
Forest Fires
Hydrogen Sulfide
Nitrogen Dioxide
Particulate Matter
Pollution Monitoring
Spatial Analysis
Sulfur Dioxide
Time Series
Volatile Organic Compound
Air Pollution
Air Quality
Concentration (parameters)
Controlled Study
Forest Fires
Geographic Distribution
Particle Size
Particulate Matter
Priority Journal
Seasonal Variation
Spatial Analysis
Time Series Analysis
Urban Area
Issue Date: 2019
metadata.dc.publisher.journal: Science of the Total Environment
metadata.dc.relation.ispartof: Volume 650, Pags. 996-1006
Abstract: This research aims to assess air quality in a transitional location between city and forest in the Amazon region. Located downwind of the Manaus metropolitan region, this study is part of the large-scale experiment GoAmazon2014/5. Based on their pollutant potential, inhalable particulate matter (PM2.5), nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), hydrogen sulfide (H2S), benzene, toluene, ethylbenzene and meta-, orto-, para-xylene (BTEX) were selected for analysis. Sampling took place during the wet season (March–April 2014) and dry season (August–October 2014). The number of forest fires in the surroundings was higher during the dry wet season. Results show significant increase during the dry season in mass concentration (wet: <0.01–10 μg m−3; dry: 9.8–69 μg m−3), NH4 + soluble content (wet: 13–125 μg m−3; dry: 86–323 μg m−3) and K+ soluble content (wet: 11–168 μg m−3; dry 60–356 μg m−3) of the PM2.5, and O3 levels (wet: 1.4–14 μg m−3; dry: 1.0–40 μg m−3), indicating influence of biomass burning emissions. BTEX concentrations were low in both periods, but also increased during the dry season. A weak correlation in the time series of the organic and inorganic gaseous pollutants indicates a combination of different sources in both seasons and NO2 results suggest a spatial heterogeneity in gaseous pollutants levels beyond initial expectations. © 2018
metadata.dc.identifier.doi: 10.1016/j.scitotenv.2018.09.073
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