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Occurrence and ecological risk assessment of pharmaceuticals and cocaine in a beach area of Guarujá, São Paulo State, Brazil, under the influence of urban surface runoff

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Abstract

The occurrence of pharmaceuticals and illicit drugs in water resources is widely documented in Europe, North America and Asia. However, in South America, these studies are still incipient. The objective of this study was to screen and identify the presence of pharmaceuticals of various therapeutic classes, including illicit drugs such as cocaine and its metabolite benzoylecgonine, in urban drainage channels that flow into the bathing waters of Guarujá city, State of São Paulo, Brazil. Moreover, the ecological potential risks to the aquatic biota were also assessed. The water samples were collected from four beaches of Guarujá in two different points: in the urban drainage channels and in the nearby coast line. A total of 16 compounds were detected using liquid chromatography coupled with tandem mass spectrometry: carbamazepine (0.1–8.0 ng/L), caffeine (33.5–6550.0 ng/L), cocaine (0.2–30.3 ng/L), benzoylecgonine (0.9–278.0 ng/L), citalopram (0.2–0.4 ng/L), acetaminophen (18.3–391.0 ng/L), diclofenac (0.9–79.8 ng/L), orphenadrine (0.2–1.5 ng/L), atenolol (0.1–140.0 ng/L), propranolol (limit of detection: LOD—0.9 ng/L), enalapril (2.2–3.8 ng/L), losartan (3.6–548.0 ng/L), valsartan (19.8–798.0 ng/L), rosuvastatin (2.5–38.5 ng/L), chlortalidone (0.1–0.4 ng/L) and clopidogrel (0.1–0.2 ng/L). The hereby data also showed that five of these compounds, namely caffeine, acetaminophen, diclofenac, losartan and valsartan, could raise moderate to severe risks to aquatic organisms (algae, crustaceans and fishes). This study is the first report of the occurrence of several pharmaceuticals and illicit drugs in urban drainage channels that flow to the bathing waters in South America, and it is the first quantification of rosuvastatin, chlortalidone and clopidogrel in environmental marine waters of Latin America.

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Acknowledgments

Authors want to acknowledge Daniel Temponi Lebre from the Centro de Espectrometria de Massa Aplicada - Instituto de Pesquisas Energéticas e Nucleares (CEMSA, IPEN, São Paulo, Brazil) for technical support regarding the LC–MS/MS analyses. Thanks also to Pulsar pictures Ltda, Apiacás St., 934, São Paulo, Brazil, for the licence to reproduce the images of the beaches of Guarujá (contract no 27918). Correia AT was supported by national funds through FCT - Foundation for Science and Technology within the scope of UIDB/04423/2020 and UIDP/04423/2020.

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Correspondence to Alberto Teodorico Correia.

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Roveri, V., Guimarães, L.L., Toma, W. et al. Occurrence and ecological risk assessment of pharmaceuticals and cocaine in a beach area of Guarujá, São Paulo State, Brazil, under the influence of urban surface runoff. Environ Sci Pollut Res 27, 45063–45075 (2020). https://doi.org/10.1007/s11356-020-10316-y

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  • DOI: https://doi.org/10.1007/s11356-020-10316-y

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