Characterisation and source identification of the total airborne particulate matter collected in an urban area of Aracaju, Northeast, Brazil

In this work, studies using samples collected in an urban area of Aracaju city, Sergipe State, Northeast, Brazil revealed that soil dust in suspension was the main source of total airborne particulate matter (TAPM), followed by vehicular pollution. The concentration profiles for Cu, Fe, Mn, Ni, V an...

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Bibliographic Details
Published in:Environmental pollution (1987) 2017-07, Vol.226, p.444-451
Main Authors: Almeida, Tarcísio S., Sant´Ana, Mirna O., Cruz, Jersica M., Tormen, Luciano, Frescura Bascuñan, Vera Lúcia A., Azevedo, Pericles A., Garcia, Carlos Alexandre B., Alves, José do Patrocínio H., Araujo, Rennan G.O.
Format: Article
Language:English
Subjects:
Air Pollutants - analysis
Atmospheric pollution
Brazil
Cities
Dust - analysis
Enrichment factor
Environmental Monitoring
Environmental Pollution - statistics & numerical data
Geoaccumulation index
Multivariate Analysis
Particulate Matter - analysis
PCA and HCA
Soil
Total airborne particulate matter
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Summary:In this work, studies using samples collected in an urban area of Aracaju city, Sergipe State, Northeast, Brazil revealed that soil dust in suspension was the main source of total airborne particulate matter (TAPM), followed by vehicular pollution. The concentration profiles for Cu, Fe, Mn, Ni, V and Ti were established for the collected TAPM samples. The concentrations of SO2 and smoke were also measured all along the 42 sampling days. Through multivariate data analysis of the results a correlation between Fe, Mn, Ni and Ti in the mineral composition of the particles was established, indicating soil dust in suspension as the main source of TAPM. The concentrations of Cu and smoke were found to be related to vehicular traffic, and the second largest source of TAPM. Enrichment factors (EF) were calculated for the studied elements, and only Cu was found to be enriched. The concentrations of the elements in TAPM were evaluated using the geoaccumulation index (Igeo), and Fe, Mn, Ni, V and Ti were found to derive from natural sources, in TAPM. However, approximately 55% of the samples did not presented Cu contamination (Igeo≤0), and the remaining 45% presented Cu concentrations levels that indicated between low to moderate (0
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2017.04.018