Monitoring of polycyclic aromatic hydrocarbons in a produced water disposal area in the Potiguar Basin, Brazilian equatorial margin.

Lourenço, Rafael André; de Oliveira, Fábio Francisco; de Souza, João Maximino; Nudi, Adriana Haddad; de Luca Rebello Wagener, Ângela; de Fátima Guadalupe Meniconi, Maria; Francioni, Eleine

Lourenço, Rafael André; de Oliveira, Fábio Francisco; de Souza, João Maximino; Nudi, Adriana Haddad; de Luca Rebello Wagener, Ângela; de Fátima Guadalupe Meniconi, Maria; Francioni, Eleine.

Afiliação

Lourenço RA; Instituto Oceanográfico da Universidade de São Paulo (IOUSP), Praça do Oceanográfico191, São Paulo, SP, Brazil. rafaell@usp.br.
de Oliveira FF; Pontifícia Universidade Católica (PUC-Rio), Rua Marques de São Vicente, 225, 22451-900, Rio de Janeiro, RJ, Brazil.
de Souza JM; Centro de Pesquisa e Desenvolvimento Leopoldo Miguez de Mello (Petrobras), Av. Horácio de Macedo, 950, 21941-915, Rio de Janeiro, RJ, Brazil.
Nudi AH; Pontifícia Universidade Católica (PUC-Rio), Rua Marques de São Vicente, 225, 22451-900, Rio de Janeiro, RJ, Brazil.
de Luca Rebello Wagener Â; Pontifícia Universidade Católica (PUC-Rio), Rua Marques de São Vicente, 225, 22451-900, Rio de Janeiro, RJ, Brazil.
de Fátima Guadalupe Meniconi M; Centro de Pesquisa e Desenvolvimento Leopoldo Miguez de Mello (Petrobras), Av. Horácio de Macedo, 950, 21941-915, Rio de Janeiro, RJ, Brazil.
Francioni E; Centro de Pesquisa e Desenvolvimento Leopoldo Miguez de Mello (Petrobras), Av. Horácio de Macedo, 950, 21941-915, Rio de Janeiro, RJ, Brazil.

Environ Sci Pollut Res Int ; 23(17): 17113-22, 2016 Sep.

Article em En | MEDLINE | ID: mdl-27211096

RESUMO

The Potiguar Basin has oil and gas production fields offshore and onshore. All treated produced water (PW) from these fields is discharged through submarine outfalls. Although polycyclic aromatic hydrocarbons (PAHs) are minor constituents of PW, their input into the marine ecosystem is environmentally critical due to potential ecological hazards. A 2-year monitoring program was conducted in the vicinity of the outfalls to evaluate PAH bioaccumulation in marine life from PW discharges. The study was performed using transplanted bivalves Crassostrea brasiliana and semipermeable membrane devices (SPMDs) to measure PAH concentrations via bioaccumulation and in seawater. The bioaccumulation of PAH in transplanted bivalves reached up to 1105 ng g(-1) in the vicinity of the monitored outfall. Significantly lower PAH concentrations were found in the reference area in comparison to the studied area around the outfalls. Time-integrated PAH concentrations in seawater ranged from 38 to 0.3 ng L(-1) near the outfalls and from 10 ng L(-1) to not detected in the reference area. Both measurement techniques were found to be effective for determining a gradient of descending PAH concentrations from the outfalls. In addition, this study also evaluated the bioavailability of PAH for local marine biota and provided information about the influence of PW discharges on the water quality of marine ecosystems.

Assuntos

Hidrocarbonetos Policíclicos Aromáticos/análise; Água do Mar/química; Poluentes Químicos da Água/análise; Brasil; Monitoramento Ambiental/métodos

Palavras-chave

Bioaccumulation; Bivalves; PAH; Potiguar Basin; Produced water; SPMD; Tropical marine ecosystem

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Hidrocarbonetos Policíclicos Aromáticos / Água do Mar / Poluentes Químicos da Água País/Região como assunto: America do sul / Brasil Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha

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