A preliminary risk assessment of organochlorines accumulated in fish to the Indo-Pacific humpback dolphin (Sousa chinensis) in the Northwestern waters of Hong Kong

Hung, Craig L.H.; Xu, Yan; Lam, James C.W.; Connell, Des; Lam, Michael Hon-Wah; Nicholson, Stuart; Richardson, Bruce J.; Lam, Paul K.S.

doi:10.1016/j.envpol.2005.12.028

Cited by 20 publications

(8 citation statements)

References 12 publications

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“…Both the dolphins and porpoises are top predators in the marine food chain, have resident populations distributed in the northwestern and eastern waters of Hong Kong, respectively, and have been the subject of previous monitoring studies (16,17). To our knowledge, this is the first study showing a significant increasing trend in HBCD concentrations in the Chinese marine environment and showing the presence of two novel flame retardants in marine organisms in China.…”

Section: Introductionmentioning

confidence: 79%

Temporal Trends of Hexabromocyclododecanes (HBCDs) and Polybrominated Diphenyl Ethers (PBDEs) and Detection of Two Novel Flame Retardants in Marine Mammals from Hong Kong, South China

Lam

Lau

Murphy

et al. 2009

Environ. Sci. Technol.

164

124

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Concentrations of hexabromocyclododecanes (HBCDs), polybrominated diphenyl ethers (PBDEs), and three novel flame retardants, namely2-ethylhexyl 2,3,4,5-tetrabromobenzoate (TBB), bis-(2-ethylhexyl)-tetrabromophthalate (TBPH), and hexachlorocyclopentadienyldibromocyclooctane (HCDBCO), were determined in blubber samples of Indo-Pacific humpback dolphins (Sousa chinensis) and finless porpoises (Neophocaena phocaenoides). The levels of HBCDs and PBDEs in cetacean samples ranged from 4.1 to 519 and 103 to 51,100 ng/g lw, respectively. A significant increasing trend of SigmaHBCDs was observed in dolphin samples from 1997 to 2007 with an estimated annual rate of 5%, whereas no significant temporal trends of SigmaPBDEs appeared over the sampling period. This pattern may be attributed to the increasing usage of HBCDs following the restriction/voluntary withdrawal of the production and use of PBDE commercial mixtures in several countries. HCDBCO was not found in the blubber samples. This is the first report of the presence of TBB and TBPH, two new flame retardants that have previously been identified in house dust from the U.S., in marine mammals; concentrations of these compounds in dolphins and porpoises ranged from the instrumental detection limit (IDL) (<0.04) to 70 and IDL (<0.04) to 3859 ng/g lw, respectively. Levels of TBPH were comparable to SigmaHBCDs in porpoise samples. The presence of these novel flame retardants in top-trophic-level marine organisms raises concern about their release into the environment and indicates the need for further monitoring of these compounds in other environmental matrices.

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Section: Introductionmentioning

confidence: 79%

Temporal Trends of Hexabromocyclododecanes (HBCDs) and Polybrominated Diphenyl Ethers (PBDEs) and Detection of Two Novel Flame Retardants in Marine Mammals from Hong Kong, South China

Lam

Lau

Murphy

et al. 2009

Environ. Sci. Technol.

164

124

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“…Three composite (pooled) samples for each of the species were prepared by mixing the collected parts from a minimum of three numbered individuals, or 1000 g of bivalve. The prepared samples were preserved at −20°C until chemical analysis (Bocio et al 2007;Hung et al 2006). …”

Section: Samplesmentioning

confidence: 99%

Total petroleum hydrocarbons in edible marine biota from Northern Persian Gulf

Nozar¹,

Pauzi

Salarpouri³

et al. 2015

Environ Monit Assess

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To provide a baseline information for consumer's health, distribution of total petroleum hydrocarbons in 18 edible marine biota species from northern Persian Gulf was evaluated. The samples were purchased from fish market of Hormozgan Province, South of Iran. Marine biota samples included different species with various feeding habits and were analyzed based on ultraviolet florescence spectroscopy. Petroleum hydrocarbons showed narrow variation, ranging from 0.67 to 3.36 μg/g dry weight. The maximum value was observed in silver pomfret. Anchovy and silver pomfret with the highest content of petroleum hydrocarbons were known as good indicator for oil pollution in the studied area. From public health point of view, the detected concentrations for total petroleum hydrocarbons were lower than hazardous guidelines. The results were recorded as background data and information in the studied area; the continuous monitoring of pollutants is recommended, according to the rapid extension of industrial and oily activities in Hormozgan Province.

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“…River-associated and coastal pollution is the other side of the coin (Jenssen 2003;Sun et al 2012). Accumulation of organochlorine compounds (DDTs, PCBs and HCB) , polycyclic aromatic hydrocarbons (PAHs) and heavy metals ( Hg, Pb et al) in humpback dolphins was discovered in many distribution areas (Cagnazzi et al 2013;Hung et al 2006a;Hung et al 2006b;Wu et al 2013) , that challenges conservation of the estuary-type dolphins. Variables describing topological features of the seafloor such as slope, aspect and surf_ratio were not good predictors for the dolphin habitats.…”

Section: Habitat Preferencementioning

confidence: 99%

Modeling potential distribution of Indo-Pacific humpback dolphins (Sousa chinensis) in the Beibu Gulf, China

Chen

Song

Qin

2016

Preprint

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A preliminary risk assessment of organochlorines accumulated in fish to the Indo-Pacific humpback dolphin (Sousa chinensis) in the Northwestern waters of Hong Kong

Cited by 20 publications

References 12 publications

Temporal Trends of Hexabromocyclododecanes (HBCDs) and Polybrominated Diphenyl Ethers (PBDEs) and Detection of Two Novel Flame Retardants in Marine Mammals from Hong Kong, South China

Temporal Trends of Hexabromocyclododecanes (HBCDs) and Polybrominated Diphenyl Ethers (PBDEs) and Detection of Two Novel Flame Retardants in Marine Mammals from Hong Kong, South China

Total petroleum hydrocarbons in edible marine biota from Northern Persian Gulf

Modeling potential distribution of Indo-Pacific humpback dolphins (Sousa chinensis) in the Beibu Gulf, China

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