Specific accumulation of persistent organochlorines in bluefin tuna collected from Japanese coastal waters

“…In contrast, dietary intake of PCBs through aquatic product consumption, especially via marine fish, appears to be at sufficiently high levels to cause cancer risk for global consumers, with the exposure levels following the order of Asians > Europeans > Americans > Oceanians. It should be noted that although the levels of PCBs and OCPs in recent years have shown a declining trend in the general environment [57][58][59][60], obvious fresh inputs exist in some regions around the world [40,51,[61][62][63][64][65], which merits greater awareness and attention. Furthermore, we suggest that all countries should strive, on a more global scale, to better harmonize their various regulations and guidelines for these ubiquitous pollutants, in order to allow the development of more comprehensive and accurate risk assessment models, as well as dietary exposure pathways, for protecting public health.…”

Section: Resultsmentioning

confidence: 99%

“…Consumption of marine fish and crustaceans by Norwegian people is at the high end of the global range (Supplemental Data, Table S6). Similarly, the highest exposure level for PCBs was found in Japan's consumers via marine fish collected from Japanese coastal waters, which was also due to high PCB concentrations and large marine fish consumption for the Japanese population [51]. Among all species of aquatic products, PBDE intake through marine and freshwater fish for global populations was much higher, which can be ascribed to higher marine and freshwater consumption rates on a global scale.…”

Section: Dietary Intakementioning

confidence: 96%

Dietary intake of persistent organic pollutants and potential health risks via consumption of global aquatic products

Guo

Zeng

2010

Enviro Toxic and Chemistry

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Abstract-The concentration levels of typical persistent organic pollutants such as polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs) including dioxin-like PCBs (DL-PCBs) and non-dioxin-like PCBs, organochlorine pesticides (OCPs), and polybrominated diphenyl ethers (PBDEs) in global aquatic products from major producing countries were summarized. Daily intakes of these compounds via consumption of various aquatic products for global consumers were also estimated based on available literature data. Risk assessment based upon existing criteria for OCPs and PBDEs shows that there is minimal risk to global consumers from consumption of aquatic products, with the exception of products from specific regions located around known heavy-point sources. Exposure to dioxins through consumption of aquatic products, excluding marine fish, is also in the range of the acceptable level, lower than 4 pg World Health Organization toxic equivalent (WHO-TEQ)/kg bw/d; however, dioxin intake via marine fish may cause hazards to human health, especially for Europeans. Regarding PCBs, there is cancer risk for global consumers via consumption of aquatic products, especially marine fish, based on cancer and noncancer hazard ratio assessment. Generally, European consumers have higher exposure levels of PCDD/Fs and DL-PCBs, while Americans and Asians have relatively higher exposure levels of OCPs and PCBs. In contrast, all global populations are found to have lower exposure levels of PBDEs, which may be attributed to its relatively shorter history of use compared with PCBs and OCPs. Finally, the estimated total amounts of PCBs, OCPs, and PBDEs stored in global aquatic products constitute only a small portion of the total amount that has been used, and the majority obviously occurs in other environmental media or even remains in commercial products.

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“…It is known that PCB concentration in the bodies of fish varies with the size of the fish because of the high bioaccumulation potential of PCBs (Harding et al 1997;Olsson et al 2000;Ueno et al 2002). However, as mature fish with a limited size variation were employed for analyses in this study, the variation of PCB concentration with fish size was not detected.…”

Section: Pcbs In Fish and Invertebratesmentioning

confidence: 90%

“…Because there had been no other monitoring sites for PCBs inside the flat, no more information was available to determine the origin and the state of PCB pollution in the flat. PCBs are predominant among persistent organochlorines in fish and marine mammals collected from various sites along Japanese coastal waters and are of major environmental concern because of their potential toxicity to living systems (Ueno et al 2002;Lee et al 1997;Kim et al 1996;Tanabe et al 1994). Environmental PCBs are accumulated most abundantly in sediments (Tanabe and Tatsukawa 1986) and are bioavailable to aquatic fauna.…”

Section: Introductionmentioning

confidence: 99%

Distribution of polychlorinated biphenyls (PCBs), lead, and cadmium in Manko Tidal Flat, Okinawa

et al. 2004

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Concentrations of polychlorinated biphenyls (PCBs), Pb, and Cd in sediment samples from the Manko Tidal Flat, an important area for migratory birds in Okinawa, were analyzed. High concentrations of PCBs were detected in the sediment samples from sites under a bridge at the end of the Manko Flat, whereas Pb and Cd concentrations did not indicate specific pollution. The spatial distribution and homologue proportion of PCBs indicated that these PCBs are probably attributed to the residue of paints used on the bridge in the 1970s. PCBs were detected in tilapias from sites in the Manko Flat and in a river connecting to the flat without head constructions. PCBs were also detected in small invertebrates, tanaids, in the flat. The distribution of PCB concentrations in the fauna was parallel to that in the sediments. The average PCB homologue proportions in tilapias and tanaids were similar to those in sediments.

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Specific accumulation of persistent organochlorines in bluefin tuna collected from Japanese coastal waters

Cited by 44 publications

References 19 publications

Chlorinated Hydrocarbon Residues in Fish from Nové Mlýny Reservoirs Along Dyje River, Czech Republic

Chlorinated Hydrocarbon Residues in Fish from Nové Mlýny Reservoirs Along Dyje River, Czech Republic

Dietary intake of persistent organic pollutants and potential health risks via consumption of global aquatic products

Distribution of polychlorinated biphenyls (PCBs), lead, and cadmium in Manko Tidal Flat, Okinawa

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