PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast

Lavandier, Ricardo; Arêas, Jennifer; Quinete, Natalia; Moura, Jailson Fulgêncio de; Taniguchi, Satie; Montone, Rosalinda Carmela; Siciliano, Salvatore; Moreira, Isabel

doi:10.1016/j.envpol.2015.10.013

Cited by 28 publications

(10 citation statements)

References 77 publications

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“…However, very little is known concerning contamination by POPs and mercury in bottlenose dolphins and other marine mammal species from the Southeastern Tropical Pacific and the west coast of South America, except for the pioneering research on POPs in endemic pinnipeds from the Galapagos Islands, i.e., Galapagos sea lions (Zalophus wollebaeki) and Galapagos fur seals (Arctocephalus galapagoensis) (Alava et al, 2009(Alava et al, , 2011(Alava et al, , 2017bAlava and Gobas, 2012;Alava and Ross, 2018), and the first assessment of POPs in Chilean blue whales (Balaenoptera musculus) from Isla de Chiloé, southern Chile (Muñoz-Arnanz et al, 2019). Generally, most studies on chemical contaminants (e.g., POPs, mercury) in Latin America have focused on small cetacean species from the Atlantic coast of South America, mainly along coastal Brazil (Yogui and Sericano, 2009;Alonso et al, 2010Alonso et al, , 2012Alonso et al, , 2015Bisi et al, 2012;Santos-Neto et al, 2014;Lavandier et al, 2015Lavandier et al, , 2016Lavandier et al, , 2019Baptista et al, 2016;Kehrig et al, 2016Kehrig et al, , 2017, and the southern marine-coastal regions of Chile and Argentina (Gerpe et al, 2002;Cáceres-Saez et al, 2015, 2018Durante et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Persistent Organic Pollutants and Mercury in Genetically Identified Inner Estuary Bottlenose Dolphin (Tursiops truncatus) Residents of the Guayaquil Gulf, Ecuador: Ecotoxicological Science in Support of Pollutant Management and Cetacean Conservation

et al. 2020

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The bottlenose dolphin is one of the most common cetaceans found in the coastal waters, estuaries, and mangroves of Ecuador. However, its population size is gradually declining in the Gulf of Guayaquil, and anthropogenic factors including habitat degradation, uncontrolled dolphin watching, dredging activities, increasing maritime traffic, underwater noise, bycatch, and marine pollution have been implicated in their decline. Very little is known about contamination by persistent organic pollutants (POPs) and mercury in bottlenose dolphins from the Pacific coast of South America. To address this research gap, the first assessment of total mercury (THg) and POPs, including polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs), in free-ranging bottlenose dolphins in mangroves (El Morro Mangrove Wildlife Refuge) of the Gulf of Guayaquil, was conducted in Ecuador in 2018. Dolphin samples (i.e., skin and blubber; n = 9), were obtained using dart biopsy field methods for contaminant analysis. POP concentrations ranged from 0.56 to 13.0 mg/kg in lipid weight, while THg ranged from 1.92 to 3.63 mg/kg in dry weight. The predominant POPs were OCPs (50% of POP), followed by PCBs (46%) and PBDEs (6.0%); particularly, p,p-DDE, the main DDT metabolite and a potent antiandrogenic, accounting for 42% of POP, ranging from 0.12 to ∼7.0 mg/kg lw, followed by PCB 153 (8.0%) and PCB 180 (5.0%). PBDE 47 accounted for 2.0% of POP. While the POP concentrations are lower than those found in dolphins from many other regions

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Section: Introductionmentioning

confidence: 99%

Persistent Organic Pollutants and Mercury in Genetically Identified Inner Estuary Bottlenose Dolphin (Tursiops truncatus) Residents of the Guayaquil Gulf, Ecuador: Ecotoxicological Science in Support of Pollutant Management and Cetacean Conservation

et al. 2020

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“…Por fim, embora os estudos na literatura demonstrem ubiquidade dos PBDE no ambiente, informações sobre esses contaminantes no Brasil ainda são restritas aos poucos estudos voltados à contaminação da biota aquática em regiões afetadas pela urbanização e industrialização. Dentre estes estudos, destacam-se aqueles envolvidos com a presença de PBDE em cetáceos e peixes tanto marinhos [82][83][84][85] quanto de água doce. 86 Mais recentemente, um estudo realizado com amostras do Lago Paranoá, no Distrito Federal, revelou níveis de 2,51 ng g -1 para o BDE-47 e 8,1 ng g -1 para o BDE-66.…”

Section: Presença E Comportamento No Ambienteunclassified

“…Para sedimentos aquáticos, a amostragem tem sido realizada através do emprego de diversos modelos de dragas. 28,47,49,66,71,77,85,99,100,119,126,138,153,154,156,183,184,191,196,197 ASE: extração acelerada por solvente, CC: cromatografia em coluna, DCM: diclorometano, ECD: detector de captura de elétrons, EtAc: acetato de etila, GC: cromatografia gasosa, GPC: cromatografia por permeação e gel, HPLC: cromatografia líquida de alta eficiência, HRGC: cromatografia gasosa de alta resolução, HRMS: espectrometria de massas de alta resolução, ID: diluição isotópica, MAE: extração assistida por micro-ondas, MeOH: metanol, MPat: material particulado atmosférico, MS/MS: espectrometria de massas in tandem, MS: espectrometria de massas, NCI: ionização química negativa, PLE: extração por líquido pressurizado, QqQ: triploquadrupolo, SPE: extração em fase sólida, US: ultrassom, UV/Vis: espectrometria de absorção molecular nas regiões do ultravioleta e visível.…”

Section: Amostragem E Preservaçãounclassified

Éteres Difenílicos Polibromados (Pbde) Como Contaminantes Persistentes: Ocorrência, Comportamento No Ambiente E Estratégias Analíticas

Annunciação¹,

Almeida²,

Hara³

et al. 2018

Quim. Nova

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Flame retardants are substances mixed with numerous materials to inhibit the combustion process, reducing risks and damages caused by fires. Among these substances, polybrominated diphenyl ethers (PBDEs) have been widely used for decades due to their low cost and high efficiency. However, since they are mixed and not chemically bonded to the materials, PBDEs can be released over time being transported through numerous pathways until they reach soils and aquatic systems, where they can accumulate in sediments and biota. Due to their high chemical stability, an essential feature for flame retardants, they are considered persistent contaminants. Several studies report the presence of PBDEs in atmospheric and aquatic particulate matter, sediments, soils and biological matrices such as marine animals, tissues and human fluids. In Brazil, little is known about the use and commercialization of PBDEs, as well as their levels in different environmental compartments. Thus, this review provides an overview of the origin of PBDEs in the environment as well as information inherent to the understanding of the behavior and presence of this contaminants of recent interest in different environmental compartments. Finally, the manuscript also brings state-of-the-art analytical approaches used for environmental sampling, preservation, preparation and sample analysis.

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“…The fate of PBDEs in the environment can be air--water exchange, deposition on water and soils, riverine runoff, sorption, degradation and bioaccumulation in biota. There are recent reports on bioaccumulation of PBDEs in killer whales and dolphins even near the artic (Alava et al, 2016, Lavandier et al, 2016, Salvadó et al, 2016. Air and water are primary transporters of PBDEs, while soils and sediments are final sinks ( Fig.…”

Section: Fate and Partial Compartmentalizationmentioning

confidence: 99%

Environmental issues of Polybrominated Diphenyl Ethers

Taheran

Komtchou

Lonappan

et al. 2017

Critical Reviews in Environmental Science and Technology

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Polybrominated diphenyl ethers (PBDEs) are among the emerging contaminants that have been traced in almost all environmental compartments for the past 30 years. Their continued application as flame retardant additives, persistence in nature due to fluorine groups, global atmospheric transport and analytical challenges due to interferences and different properties of congeners indicate the urgent need of finding solutions to their use. The increasing level of PBDEs in the environment and especially human tissues is alarming due to their potential neurological effects, cancer proliferation and thyroid hormone imbalance. Therefore, strict regulations need to be applied in all countries to control the PBDEs production consumption and disposal into the environment. Studies have shown that conventional wastewater treatment plants are unable to degrade PBDEs resulting in the transport of 60-90% of PBDEs to soil through biosolids application. On the other hand, advanced treatment processes, such as ultraviolet light, advanced oxidation and photocatalytic degradation showed promising potential for removing PBDEs from wastewater (70-100% degradation efficiency).

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PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast

Cited by 28 publications

References 77 publications

Persistent Organic Pollutants and Mercury in Genetically Identified Inner Estuary Bottlenose Dolphin (Tursiops truncatus) Residents of the Guayaquil Gulf, Ecuador: Ecotoxicological Science in Support of Pollutant Management and Cetacean Conservation

Persistent Organic Pollutants and Mercury in Genetically Identified Inner Estuary Bottlenose Dolphin (Tursiops truncatus) Residents of the Guayaquil Gulf, Ecuador: Ecotoxicological Science in Support of Pollutant Management and Cetacean Conservation

Éteres Difenílicos Polibromados (Pbde) Como Contaminantes Persistentes: Ocorrência, Comportamento No Ambiente E Estratégias Analíticas

Environmental issues of Polybrominated Diphenyl Ethers

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