Sistema limpo em linha para extração em fase sólida de contaminantes emergentes em águas naturais

Sodré, Fernando Fabriz; Locatelli, M.; Jardim, Wilson F.

doi:10.1590/s0100-40422010000100037

Cited by 22 publications

(15 citation statements)

References 4 publications

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“…Solid-phase extraction (SPE) was carried out using a lab-made extraction system to avoid cross contamination similar to the one described elsewhere. 22 The sorbent phase was conditioned with 6 mL of a methanol:acetonitrile mixture (60:40 v/v) followed by 6 mL of a pH 2.0 ultrapure water. Samples were passed through the cartridges at a flow rate of 3 mL min -1 in order to provide adequate contact between the analytes and the sorbent phase.…”

Section: Sample Preparationmentioning

confidence: 99%

Illicit Drugs, Metabolites and Adulterants in Wastewater: Monitoring Community Drug Abuse in the Brazilian Federal District during the 2014 Soccer World Cup

Sodré¹,

Souza²,

Feitosa³

et al. 2017

J. Braz. Chem. Soc.

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A multiresidue method was developed to estimate community drug use during two weekends of the 2014 Soccer World Cup via wastewater analyses. Five of the 16 investigated substances were detected in all eight samples. Benzoilecgonine (BE), the major cocaine metabolite, was the most abundant substance (1.9 ± 0.3 to 4.2 ± 0.2 μg L ). COC and BE levels suggested a human consumption origin for the investigated drugs. AE/BE ratios revealed a significant use of smoked crack/free base cocaine. Relationships between the adulterants PHE and LEV evidenced a higher use of crack cocaine in the South-Wing WWTP region. An estimative for cocaine use revealed slightly higher drug consumption during the Soccer World Cup weekends in comparison with a typical weekend in 2012.

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Section: Sample Preparationmentioning

confidence: 99%

Illicit Drugs, Metabolites and Adulterants in Wastewater: Monitoring Community Drug Abuse in the Brazilian Federal District during the 2014 Soccer World Cup

Sodré¹,

Souza²,

Feitosa³

et al. 2017

J. Braz. Chem. Soc.

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“…Urban effluents are considered the main form of entry of EDs into water bodies and are normally discarded in the environment through excretion of humans and other animals (Diniz et al, 2010), of untreated sewage or with primary treatment in bodies of water (Sodré et al, 2010) and the inadequate disposal of drug residues in dumpsites and landfills. These drugs contain resistant EDs molecules, and when excreted in the urine, feces and/or in the original form are difficult to eliminate and may persist in the environment (D'Ascenzo et al, 2003).…”

Section: Nonylphenol (Np)mentioning

confidence: 99%

Endocrine Disruptors in Aquatic Environment: Effects and Consequences on the Biodiversity of Fish and Amphibian Species

Silva¹,

Oliveira²,

Quirino³

et al. 2018

AST

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Endocrine Disruptors (EDs) are synthetic or natural chemical compounds of exogenous origin that can cause serious health damage, in the growth and reproduction of animals when released into the aquatic environment through anthropic activities. Taking into account the current impact of pollutants on aquatic biodiversity in the last years, this study aims to systematically review the relevant literature on currently known EDs, focusing on their sources, their effects, and consequences on the aquatic biota, with emphasis to fish and amphibians. About 70% of the analyzed studies report that sewage represents the major source of EDs contamination to the water environment, and more than 90% of these contaminants are associated with interference in the sexual differentiation of aquatic animals, infertility, and reduction of sperm production. In addition, the main effects caused by EDs in fish include abnormalities in the reproductive system of animals (47%), induction of vitellogenin (VTG) synthesis (20%) and mortality of the species (13%). In amphibians, the main effects caused by EDs include changes in hormonal activity (physiological functions) during the embryonic development (11%), causing changes in anatomy (33%) and behavior (11%), leading to a reduction in reproductive success (11%), as well as gonadal abnormalities (22%), hermaphroditism (33%) and other alterations in the reproductive system (45%). Finally, this report calls attention to the importance to the rational use of these substances, as well as to encourage scientific research that shows the real seriousness of these Aquatic Science and Technology ISSN 2168-9148 2018 contaminations on the decline of fish and amphibian populations, showing mediating and mitigating solutions to their impacts.

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“…As fontes antropogênicas (ou antrópicas), são as principais responsáveis pela presença destes contaminantes no meio ambiente. (Lopes e Andrade (1996), Froehner e Martins (2008), Sodré et al, (2007), Sodré et al, (2010) e Cristale, et al (2008). Os HPA originários de fontes antropogênicas podem ser petrogênicos e pirogênicos, onde o primeiro é caracterizado pelos HPA de baixa massa molecular (BMM), sendo formados através de baixa temperatura de formação, podendo ser provenientes de derramamento de petróleo, combustão de matéria orgânica e lenta maturação da mesma.…”

Section: E Astdr (2009))unclassified

Identificação Por Cg-Em E Análise Comportamental, via Acp, De Hpa E Suas Fontes No Riacho Algodoais -Suape/Pe

Souza¹,

Silva²,

Silva³

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

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RESUMO -Os Contaminantes Emergentes (CE) têm contribuído no aumento da poluição ambiental, sobretudo em recursos hídricos, sendo estes caracterizados por se apresentarem em baixas concentrações, µg.L -1 -pg.L -1 , porém alta persistência e toxicidade. Dentre os CE, os Hidrocarbonetos Policíclicos Aromáticos (HPA) são compostos orgânicos com dois ou mais anéis aromáticos conjugados, apolares, ubíquos, apresentando efeitos carcinogênicos e/ou mutagênicos para os seres vivos. No trabalho foi identificado e verificado o comportamento dos HPA e suas fontes no Riacho Algodoais, Suape-PE, onde realizou-se três coletas. Após extração líquido-líquido com diclorometano como solvente, as amostras foram injetadas no CG-EM (Cromatografia Gasosa acoplada a Espectrometria de Massa). Nove HPA foram identificados e quantificados. Para Análise de Componentes Principais utilizou-se o software Statistica8, onde o comportamento e as fontes dos HPA foram estudados. Razões diagnósticas entre o Fluoranteno e Pireno possibilitaram a identificação das fontes. Em duas coletas as fontes se classificaram como pirogênicas, havendo discordância na terceira coleta, onde a fonte determinada foi a petrogênica, tendo esse comportamento graças à presença do criseno e um aumento significativo na concentração do pireno encontrado. Faz-se necessário um monitoramento contínuo do Riacho Algodoais, pois a presença dos HPA em concentrações significativas representa uma ameaça aos seres vivos em geral e ao meio ambiente. INTRODUÇÃOA qualidade das águas tem sido objeto de preocupação visto a crescente poluição das mesmas. Dentre os poluentes, os Contaminantes Emergentes (CE) se caracterizam por sua persistência e toxicidade apesar de baixas concentrações, na ordem de µg.L -1 -pg.L -1 . Os estudos desses contaminantes tem se intensificado devido ao aumento de ocorrências em águas superficiais, alimentos e no ar e os efeitos ocasionados Por eles na saúde humana e dos seres vivos. Com o a avanço da química analítica, a detecção desses compostos em baixas concentrações possibilitam o conhecimento do seu comportamento, fontes e efeitos.

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Sistema limpo em linha para extração em fase sólida de contaminantes emergentes em águas naturais

Cited by 22 publications

References 4 publications

Illicit Drugs, Metabolites and Adulterants in Wastewater: Monitoring Community Drug Abuse in the Brazilian Federal District during the 2014 Soccer World Cup

Illicit Drugs, Metabolites and Adulterants in Wastewater: Monitoring Community Drug Abuse in the Brazilian Federal District during the 2014 Soccer World Cup

Endocrine Disruptors in Aquatic Environment: Effects and Consequences on the Biodiversity of Fish and Amphibian Species

Identificação Por Cg-Em E Análise Comportamental, via Acp, De Hpa E Suas Fontes No Riacho Algodoais -Suape/Pe

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