Caffeine as an environmental indicator for assessing urban aquatic ecosystems

Ferreira, Aldo Pacheco

doi:10.1590/s0102-311x2005000600038

Cited by 63 publications

(48 citation statements)

References 15 publications

(22 reference statements)

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“…In Figure 1, it is also noticed that caffeine was the most frequently quantified substance (92.6 %) among the most investigated ones, followed by triclosan (56.3 %) and naproxen (35 %). The higher frequency of quantification for caffeine is in accordance with the important role of this stimulant drug as an indicator of anthropic activities, notably in Brazilian urban regions [60][61][62] . Another important aspect is the diversity of analytical methods and techniques employed in the studies carried out in Brazil.…”

Section: Methodssupporting

confidence: 67%

Pharmaceuticals and personal care products as emerging micropollutants in Brazilian surface waters: a preliminary snapshot on environmental contamination and risks

2018

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The present work intended to present a preliminary snapshot on the contamination of Brazilian surface waters by pharmaceuticals and personal care products. Data were collected elsewhere for Measured Environmental Concentrations (MEC) in surface waters and Predicted No-Effect Concentration (PNEC). Prioritization was based on risk assessment, where MEC/PNEC ratios higher than 1.0 indicate a positive risk, values below 0.1 indicate absence of risk and intermediate values, potential risk. Results revealed that hormones, antibiotics drugs and triclosan should be prioritized to subsidize the generation of water quality standards to protect aquatic life.

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Section: Methodssupporting

confidence: 67%

Pharmaceuticals and personal care products as emerging micropollutants in Brazilian surface waters: a preliminary snapshot on environmental contamination and risks

2018

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“…This value is in agreement with other studies in some Brazilian rivers. Ferreira (2005), studying rivers of the drainage basin of Leopoldina (RJ), reported values from 60 to 357 μg L -1 . Montagner and Jardim (2011) found caffeine concentrations from 0.2 to 73.9 μg L -1 in the Atibaia River, located in the region of Campinas (SP).…”

Section: Results Overviewmentioning

confidence: 99%

“…In the majority of cases a solid-phase extraction step is applied in conjunction with High Pressure Liquid Chromatography (HPLC) and Gas Chromatography (GC) in order to allow detection of trace levels of the analytes in the samples. Chromatographic techniques (liquid or gas chromatography) using UV-Vis detector (as diode array detector -DAD) or mass spectrometry detector (MS) are the most used strategies (Cahill et al, 2004;Gardinali and Zhao, 2002;Ferreira, 2005;Verenitch et al, 2006 Teresópolis (Rio de Janeiro) was chosen to evaluate the applicability of caffeine as marker of water contamination caused by human activities, through the comparison between caffeine and other usual parameters of wastewater along the Paquequer River.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2017

Rev. ambiente água

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Source: AUGUSTO, M. R.et al. Simulação numérica da dispersão do sulfeto de hidrogênio emitido por um reator UASB para tratamento de esgoto doméstico. Rev. Ambient. Água, Taubaté, vol. 12 n. 2, p. 215-225, 2017. ABSTRACTThis study evaluates the application of a polymeric microfiltration membrane in a gravitational filtration module and its combination with granular activated carbon (GAC) impregnated with copper, resulting in a hybrid process. The proposed system would be used to improve the quality of water for human consumption in developing countries. Permeate flux, pH, Escherichia coli removal, color, turbidity and free chlorine removals were evaluated in the applied process. Instrumental techniques, such as N2 adsorption at 77 K, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX) analyses were used to characterize the proposed membrane and adsorbent. The GAC ensured higher chlorine removals, as well as higher permeate flux. Furthermore, the GAC impregnated with copper oxide nanoparticles exhibited higher Escherichia coli removal. Therefore, the hybrid gravitational membrane system applying GAC impregnated with copper oxide could be considered as a potential alternative point-of-use treatment to improve the quality of water for human consumption.

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Section: Introductionmentioning

confidence: 99%

The use of caffeine as a chemical marker of domestic wastewater contamination in surface waters: seasonal and spatial variations in Teresópolis, Brazil

Gonçalves¹,

Rodrigues²,

Silva-Filho³

2017

Rev. ambiente água

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This study assessed the suitability of caffeine as an indicator for surface water pollution by domestic wastewaters. Caffeine concentrations determined in samples collected in the Paquequer River, located at the city of Teresópolis, a medium-sized city in the State of Rio de Janeiro, Brazil, were compared to other conventional water quality parameters such as phosphate, nitrate and ammonium concentrations to determine whether it as an efficient indicator of anthropic pollution of an urban aquatic environment. The Paquequer River originates in a pristine area called Parque Nacional da Serra dos Órgãos (PARNASO) and it crosses the urban area of the city of Teresópolis. Water samples were collected at seven points along the river, considering the periods of rain (summer) and drought (winter) and the different uses of land. Caffeine was measured using Solid Phase Extraction (SPE) and High Performance Liquid Chromatography (HPLC). Caffeine concentrations were found in a range from 0.16 to 47.5 µg L -1. The results show a positive relation between caffeine, phosphate, nitrate and ammonium concentrations and the increase of wastewater load, suggesting that caffeine can be used as an indicator of surface water pollution by domestic wastewaters. qualidade da água (fosfato, nitrato e amônio), de modo a caracterizá-la como um indicador eficaz da poluição antrópica do ambiente aquático urbano. O rio Paquequer nasce em uma área de preservação ambiental, o Parque Nacional da Serra dos Órgãos (PARNASO) e atravessa a área urbana da cidade de Teresópolis. Amostras foram coletadas em sete pontos ao longo do rio, considerando-se os períodos de chuva (verão) e seca (inverno) e os diferentes usos da terra. A cafeína foi determinada utilizando as técnicas de extração por fase sólida (SPE) e cromatografia líquida de alta eficiência (HPLC). As concentrações de cafeína foram encontradas numa faixa de 0,16-47,5 mg L -1 . Os resultados mostram uma relação positiva entre as concentrações de cafeína, fosfato, nitrato e amônia, e o aumento da carga de esgoto, o que sugere que a cafeína pode ser utilizada como um possível indicador de contaminação por esgoto doméstico em águas superficiais.Palavras-chave: Águas superficiais, cafeína, contaminação antrópica.

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Caffeine as an environmental indicator for assessing urban aquatic ecosystems

Abstract: This study aimed to evaluate the co-occurrence of caffeine and the extent of its influence as compared to other traditional water quality parameters (microbiological and physico-chemical)

Cited by 63 publications

References 15 publications

Pharmaceuticals and personal care products as emerging micropollutants in Brazilian surface waters: a preliminary snapshot on environmental contamination and risks

Pharmaceuticals and personal care products as emerging micropollutants in Brazilian surface waters: a preliminary snapshot on environmental contamination and risks

Untitled

The use of caffeine as a chemical marker of domestic wastewater contamination in surface waters: seasonal and spatial variations in Teresópolis, Brazil

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