Affiliation(s)
1. School of Arts, Sciences and Humanities, University of São Paulo-USP, São Paulo 03828-000, Brazil;
2. Graduate Program in Architecture and Urbanism (PPGARQ), Meridional Faculty (IMED), Passo Fundo-RS, 99070-220, Brazil
ABSTRACT
This study aimed to evaluate the EDC (endocrine disruptors compounds) in the city of São Paulo’s water sources, from
samples collected at predetermined sampling points and to evaluate the adsorptive capacity of these
compounds in different types of activated carbon. The effects of these EDC on humans are not well
established due to the necessary large
exposure time for the effect’s manifestation. After tests using powdered and
granular activated carbon, all samples were filtered under vacuum using
cellulose acetate membrane (0.45 µm) to remove eventual impurities, and
posteriorly carried out the solid-phase extraction SPE (solid-phase extraction) and chromatographic analysis. The results lead to
the conclusion that both powdered activated carbon have removal effectiveness
of these compounds by adsorption. Furthermore, great amount of endocrine
disruptors were found at several sampling points in river and city’s water reservoirs,
which shows different levels of
pollution of water sources, some of them responsible for the watersupply of the
city of São Paulo, Brazil.
KEYWORDS
Activated carbon, endocrine disruptors, adsorption, solid-phase
extraction, chromatographic
analysis, micropollutants.
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References