Evidence of Exposure of Fish to Produced Water at Three Offshore Facilities, North West Shelf, Australia

Gagnon, Marthe Monique

doi:10.1007/978-1-4614-0046-2_15

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…In Australia, offshore drilling has caused declines in some benthic organisms and medium-term (>11 months) changes to benthic communities (Currie and Isaacs 2005). Fish communities can be harmed, with wastewater from drilling having adverse physiological impacts, such as elevated stress and damage to DNA (Gagnon 2011).…”

Section: Mitigation Of Threats To Biodiversitymentioning

confidence: 99%

Representation does not necessarily reduce threats to biodiversity: Australia's Commonwealth marine protected area system, 2012–2018

Cockerell

Pressey

Grech

et al. 2020

Biological Conservation

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Section: Mitigation Of Threats To Biodiversitymentioning

confidence: 99%

Representation does not necessarily reduce threats to biodiversity: Australia's Commonwealth marine protected area system, 2012–2018

Cockerell

Pressey

Grech

et al. 2020

Biological Conservation

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“…Descartes de AP no mar com TOG acima do permitido nas licenças ambientais podem implicar em sanções pecuniárias impostas pelos órgãos reguladores. Além dos aspectos financeiros, podem incorrer prejuízos à imagem e ao meio ambiente (Gagnon, 2011;Meier et al, 2010).…”

Section: Introdu ç ãOunclassified

Estimação do teor de óleos e graxas em água descartada no mar usando redes neurais recorrentes

Júnior

Teixeira

Vargas

et al. 2021

Procedings Do XV Simpósio Brasileiro De Automação Inteligente

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Produced water in offshore oil rigs is an effluent recovered from wells of oil and natural gas, and is the main waste generated in this process. The Total Oil and Grease (TOG) is considered one of the main parameters for controlling the disposal of water produced in sea, with daily and monthly limits defined by current legislation. The TOG measurements used as reference by IBAMA is made using the gravimetric method, with samples of produced water collected daily and send to a licensed laboratory, which provides the results about 20 days after the sampling date. The need for corrective actions in case of values above the limit has motivated the use of alternative methods that generate estimates more frequently. In this work, two models based on recurrent neural networks are proposed to obtain TOG estimates. Variables from the produced water treatment process, information about chemicals used, and data about daily production from an offshore platform were collected, processed, and used to train, validate, and test these models. The comparison between the estimation error of these models and those of the existing estimation methods shows the advantage of the proposed models.Resumo: Água produzida, em plataformas marítimas, é um dos efluentes recuperados de poços em conjunto com petróleo e gás natural, sendo o principal resíduo gerado nesse processo. O Teor de Óleos e Graxas (TOG) é considerado um dos principais parâmetros de controle do descarte de água produzida no mar, com limites diários e mensais definidos pela legislação vigente. A medição de TOG usada como referência pelo IBAMA é feita pelo método gravimétrico, com amostras de água coletadas diariamente e enviadas para laboratório acreditado, que fornece os resultados após cerca de 20 dias a partir da data de amostragem. A necessidade de ações corretivas em caso de valores acima do limite tem motivado o uso de métodos alternativos que gerem estimativas com maior frequência. Neste trabalho, dois modelos baseados em redes neurais recorrentes são propostos para obter estimativas de TOG. Variáveis do processo de tratamento de água produzida, informações sobre produtos químicos utilizados e dados sobre produção diária de uma plataforma offshore foram coletados, tratados e utilizados para treinar, validar e testar esses modelos. A comparação entre o erro de estimativa desses modelos com os dos métodos existentes de estimação mostra a vantagem do uso dos modelos propostos.

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A First Comprehensive Baseline of Hydrocarbon Pollution in Gulf of Mexico Fishes

Pulster

Gracía

Armenteros

et al. 2020

Sci Rep

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Despite over seven decades of production and hundreds of oil spills per year, there were no comprehensive baselines for petroleum contamination in the Gulf of Mexico (GoM) prior to this study. Subsequent to the 2010 Deepwater Horizon (DWH) spill, we implemented Gulf-wide fish surveys extending over seven years (2011-2018). A total of 2,503 fishes, comprised of 91 species, were sampled from 359 locations and evaluated for biliary polycyclic aromatic hydrocarbon (PAH) concentrations. The northern GoM had significantly higher total biliary PAH concentrations than the West Florida Shelf, and coastal regions off Mexico and Cuba. The highest concentrations of biliary PAH metabolites occurred in Yellowfin Tuna (Thunnus albacares), Golden Tilefish (Lopholatilus chamaeleonticeps), and Red Drum (Sciaenops ocellatus). conversely, biliary pAH concentrations were relatively low for most other species including economically important snappers and groupers. While oil contamination in most demersal species in the north central GoM declined in the first few years following DWH, more recent increases in exposure to pAHs in some species suggest a complex interaction between multiple input sources and possible re-suspension or bioturbation of oil-contaminated sediments. this study provides the most comprehensive baselines of PAH exposure in fishes ever conducted for a large marine ecosystem.

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Evidence of Exposure of Fish to Produced Water at Three Offshore Facilities, North West Shelf, Australia

Cited by 4 publications

References 18 publications

Representation does not necessarily reduce threats to biodiversity: Australia's Commonwealth marine protected area system, 2012–2018

Representation does not necessarily reduce threats to biodiversity: Australia's Commonwealth marine protected area system, 2012–2018

Estimação do teor de óleos e graxas em água descartada no mar usando redes neurais recorrentes

A First Comprehensive Baseline of Hydrocarbon Pollution in Gulf of Mexico Fishes

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