Studies on the influence of sampling on the levels of dioxins and PCB in fish.
Chemosphere
; 212: 1133-1141, 2018 Dec.
Article
in En
| MEDLINE
| ID: mdl-30286542
ABSTRACT
Beaked redfish (Sebastes mentella) and Greenland halibut (Reinhardtius hippoglossoides) were collected in waters around Svalbard (Barents Sea) to study the influence of different muscle separation/filleting techniques at small and medium fishes on the dioxin/PCB content. Sampling of both species included preparation techniques such as fillets with or without belly flaps, commercially trimmed fillets and cutting into anterior and posterior cutlets. In case of Greenland halibut also the whole edible muscle part and middle cutlets were studied. All samples analysed were far below the maximum level of 6.5â¯pg/g wet weight (ww) WHO-PCDD/F-PCB-TEQ and 75â¯ng/g ww ndl-PCB. Trimmed fillets of beaked redfish had the lowest fat content and the lowest level of dioxins and PCB (1.70%, WHO-PCDD/F-PCB-TEQâ¯=â¯0.320â¯pg/g ww). The respective posterior cutlets showed the highest fat content and highest levels of dioxins and PCB (2.66%, WHO-PCDD/F-PCB-TEQâ¯=â¯0.729â¯pg/g ww). Levels of dioxins and PCB in Greenland halibut samples were generally higher and ranged between WHO-PCDD/F-PCB-TEQâ¯=â¯0.784â¯pg/g ww (fillets without bells flaps, fat contentâ¯=â¯8.83%) and WHO-PCDD/F-PCB-TEQâ¯=â¯2.022â¯pg/g ww (edible part whole muscle, fat contentâ¯=â¯8.62%). The results show a considerable influence of the different sampling methods on the dioxin and PCB levels of the species analysed.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Specimen Handling
/
Polychlorinated Biphenyls
/
Dioxins
/
Fishes
Limits:
Animals
Country/Region as subject:
Europa
Language:
En
Journal:
Chemosphere
Year:
2018
Document type:
Article