期刊
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
卷 107, 期 1, 页码 2-10出版社
SPRINGER
DOI: 10.1007/s00128-021-03275-8
关键词
Caffeine; Trimethoprim; Acetaminophen; Amazon basin; Pharmaceuticals
资金
- Corporacion Ecuatoriana para el Desarrollo de la Investigacion y Academia-CEDIA [CEPRA-XIV-2020-09]
- Pontificia Universidad Catolica del Ecuador [QINV0151-IINV529020200]
- Universidad de Cuenca
- IKIAM
- Universidad del Azuay
This study investigated the presence of emerging pollutants in rivers and streams in the northeast Ecuadorian Amazon. The analysis revealed the occurrence of caffeine, trimethoprim, and acetaminophen in the samples. The findings highlight the importance of improving sewage treatment and water quality monitoring in Amazonian cities.
This work is a study on the occurrence of emerging pollutants in the northeast Ecuadorian Amazon. Emerging contaminants (ECs)-caffeine, triclosan, estradiol, acetaminophen, nicotine, and ibuprofen-were quantified by gas chromatography-mass spectrometry in rivers and streams of the Amazon basin near the city of Tena, Ecuador. For that, a total of 16 natural water samples were taken in 8 locations. Sampling sites included areas impacted by discharges from inefficient sewage networks in urban areas, wastes from fish farming and non-functional landfill, a stream with few threats, tap water, and treated sewage. Caffeine was found in the 38% of the samples studied while trimethoprim and acetaminophen had an occurrence of 13%. Caffeine was detected at two sites receiving untreated sewage and one site receiving treated sewage with mean concentrations that ranged between 19 and 31.5 mu g L-1. Acetaminophen (50.4 mu g L-1) and trimethoprim (2 mu g L-1) were only detected in the river receiving treated sewage effluent. This is the first assessment of emerging contaminants in the upper Ecuadorian Amazon basin, and our observations highlight the need for better sewage treatment and water quality monitoring in Amazonian cities.
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