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Simultaneous evaluation of benzotriazoles, benzothiazoles and benzenesulfonamides in water samples from the impacted urban Jacarepaguá Lagoon System (Rio de Janeiro, Brazil) by liquid chromatography coupled to electrospray tandem mass spectrometry.
de Mendonça Ochs, Soraya; Souza, Thallis Martins; Sobrinho, Rodrigo de Lima; de Oliveira, Rodrigo B; Bernardes, Marcelo Corrêa; Netto, Annibal Duarte Pereira.
Afiliação
  • de Mendonça Ochs S; FIOCRUZ, Fundação Oswaldo Cruz, Instituto Nacional de Controle de Qualidade em Saúde - INCQS, Departamento de Química, Avenida Brasil, 4365, Rio de Janeiro, RJ CEP 21040-360, Brazil; Programa de Pós-Graduação em Química, Instituto de Química (PPGQ), Universidade Federal Fluminense, Outeiro de São Jo
  • Souza TM; Programa de Pós-Graduação em Química, Instituto de Química (PPGQ), Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Valonguinho, Centro, Niterói, RJ CEP 24020-141, Brazil; FIOCRUZ, Fundação Oswaldo Cruz, Instituto de Tecnologia em Imunobiológicos (Bio-Manguinhos), Departamento de C
  • Sobrinho RL; Programa de Pós-Graduação em Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ CEP 24020-141, Brazil.
  • de Oliveira RB; INMETRO, Instituto Nacional de Metrologia, Qualidade e Tecnologia, Av. Nossa Senhora das Graças, 50, Xerém, Duque de Caxias, CEP: 25250-020, RJ, Brazil; Departamento de Polícia Federal, Instituto Nacional de Criminalística, SAIS Quadra 07 Lote 23, Setor Policial Sul, CEP 70610-902, DF, Brazil.
  • Bernardes MC; Programa de Pós-Graduação em Química, Instituto de Química (PPGQ), Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Valonguinho, Centro, Niterói, RJ CEP 24020-141, Brazil; Programa de Pós-Graduação em Geoquímica, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ CE
  • Netto ADP; Programa de Pós-Graduação em Química, Instituto de Química (PPGQ), Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Valonguinho, Centro, Niterói, RJ CEP 24020-141, Brazil; Programa de Pós-Graduação em Alimentos e Nutrição (PPGAN), Universidade Federal do Estado do Rio de Janeiro, A
Sci Total Environ ; 858(Pt 3): 160033, 2023 Feb 01.
Article em En | MEDLINE | ID: mdl-36356777
ABSTRACT
Benzotriazoles, benzothiazoles, and benzenesulfonamides are emerging pollutants stable in aquatic media emitted by anthropogenic sources. Selected compounds of these classes were evaluated in the impacted urban Jacarepaguá Lagoon System (JLS) located in a tropical coastal region of Rio de Janeiro City, Brazil that has experienced a rapid expansion of urban occupation and environmental degradation in recent decades, and it represents a pioneering study of these compounds carried out in Brazilian areas. A method of solid phase extraction followed by ultra-performance liquid chromatography coupled to electrospray tandem mass-spectrometry was implemented to evaluate water samples collected in different water bodies (rivers, lagoons, and channels) of the JLS from March 2017 to May 2018. Limits of quantification (LOQs) ≤ 10.0 ng L-1, method linearity up to 1000 µg L-1, and recoveries between 62 and 121 % at three different levels were obtained. Individual concentrations varied from < LOQ to 5260 ng L-1 (benzotriazole, in May 2018) which also predominated in all river samples. 2-mercaptobenzothiazole predominated in samples taken in lagoons and channels in March 2017, and 2-aminobenzothiazole was never detected. River samples showed total concentrations up to 30 times larger in all sampling campaigns, except March 2017 when the sample taken at Tijuca Lagoon showed the largest total concentration of the compounds studied due to the largest concentration of 2-mercaptobenzothiazole (2505 ng L-1) found in this study. Principal component analysis (PCA) using only composition data was unable to distinguish samples from rivers, and lagoons and channels, but a PCA combining composition data and environmental parameters (pH, Eh, dissolved O2 concentration, temperature, salinity, and conductivity) discriminated the samples according to two groups rivers and lagoons and channels. The Joá Channel flows directly to the open sea and our data allowed a (preliminary) estimation of the total mass flows of the studied compounds to the open sea, which would vary between 1702 g day-1 (March 2017) to 106 g day-1 (May 2018) and allowed a preliminary estimative based on the geometric mean of input of 87.9 kg year-1, indicating the importance of the drainage area to the contamination of the coastal area, and consequently to ocean pollution.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Água / Espectrometria de Massas em Tandem Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Água / Espectrometria de Massas em Tandem Idioma: En Ano de publicação: 2023 Tipo de documento: Article