Occurrence and removal of drugs and endocrine disruptors in the Bolonha Water Treatment Plant in Belém/PA (Brazil)

This study aimed to investigate the occurrence of drugs and endocrine disrupters in water supplies and in water for human consumption. Twelve sampling campaigns were carried out during the rainy and dry season at four sampling points in the Bolonha Complex, in the city of Belém, northern region of B...

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Bibliographic Details
Published in:Environmental monitoring and assessment Vol. 193; no. 5; p. 246
Main Authors: Teixeira, Luiza C. G. M., das Chaves, Juliane Ribeiro, Mendonça, Neyson, Sanson, Ananda L., Alves, Mariana C. P., Afonso, Robson J. C. F., Aquino, Sérgio F.
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-05-2021
Springer Nature B.V
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Summary:This study aimed to investigate the occurrence of drugs and endocrine disrupters in water supplies and in water for human consumption. Twelve sampling campaigns were carried out during the rainy and dry season at four sampling points in the Bolonha Complex, in the city of Belém, northern region of Brazil: Bolonha reservoir (catchment) and Water Treatment Plant (WTP) Bolonha (filtered water chamber, treated water tank, and washing water from the filters). The determination of the compounds was performed by solid phase extraction followed by gas and liquid chromatography coupled to mass spectrometry. The results confirmed the anthropic influence that the reservoir and WTP-Bolonha have been suffering, as consequence of the discharge of domestic sewage in natura . Among 25 microcontaminants analyzed, 12 were quantified in raw water and 10 in treated water. The antiallergic Loratadine (LRT) was the contaminant that occurred most frequently in all sample points, having been poorly removed (median 12%) in the conventional treatment used. Losartana (LST), 4-octylphenol (4-OP), and Bisphenol A (BPA) also occurred very frequently in raw water with concentrations ranging from 3.7 to 194 ng L −1 . Although such contaminants occurred in treated water in concentrations varying from 4.0 to 135 ng L −1 , the estimated margin of exposure ranged from 55 to 3333 times which indicates low risk of human exposure to such contaminants through ingestion of treated water.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-021-09025-x