PMID- 15325148 OWN - NLM STAT- MEDLINE DCOM- 20041018 LR - 20131121 IS - 0048-9697 (Print) IS - 0048-9697 (Linking) VI - 331 IP - 1-3 DP - 2004 Sep 20 TI - Dietary composition in Greenland 2000, plasma fatty acids and persistent organic pollutants. PG - 177-88 AB - Human exposure to pollution in the Arctic presents a potential future health risk for the local populations. Epidemiological studies in Greenland have shown that human blood levels of several organic contaminants are very high, especially in the North where people depend on local food. In East Greenland (Ittoqqortoormiit (Scoresbysund)) the population shows the highest blood levels of several persistent organic pollutants found in Arctic countries, especially PCB, the levels of which exceed Canadian guideline levels. As in other Arctic countries, the direct source of these contaminants is the diet, and it is, therefore important to monitor the composition of the diet along with other factors which may influence the metabolism and thereby the accumulation of toxic substances. This project is part of the human health program of the ongoing circumpolar 'Arctic Monitoring and Assessment Programme'. Dietary survey results (Semiquantitative Food Frequency questionnaire from 192 men and women from East Greenland and 48 men from Uummannaq West Greenland) were analysed along with other factors (lifestyle and anthropometric factors), blood lipids, fatty acid profiles, and concentrations of persistent organic pollutants (POPs). The dietary survey showed that the contributions of traditional food provided 25-30% of the total energy intake. However, the relative monthly meal intake of seal, whale, polar bear, fish and game, and the composition of imported food, varied between districts. The blood fatty acids (FA), e.g. the n-3/n-6 ratio (Uummannaq 0.70, Ittoqqortoormiit 0.37 Tassiilaq 0.45) showed moderate associations with the overall reported food composition. The n-3 fatty acids were associated with the well-known lowering effect on serum-triglyceride levels. The strongest associations between diet and plasma fatty acids were found for docosapentaenoic acid, C: 22.5.3 which strongly correlated with reported seal, and polar bear intake (P=0.01** and 0.04*, respectively), consistent with the fact that seal and polar bear blubber contain much higher concentrations of C: 22.5.3 than other sea mammals and fish. Seal and polar bear intake, and in particular all the plasma n-3 fatty acids, were significantly correlated with organic contaminant concentrations, (betaHCH, chlordanes, DDTs, Hexachlorobenzene, Mirex, PCBs, and toxaphenes) P<0.01**. CONCLUSIONS: The strongest correlations between POPs and fatty acids were found with C: 22.5.3, strongly indicating seal and polar bear blubber as the main contributors of POPs to the local population. FAU - Deutch, Bente AU - Deutch B AD - Centre of Arctic Environmental Medicine, Aarhus University, Vennelyst Boulevard 6, DK 8000, Aarhus, Denmark. bd@mil.au.dk FAU - Pedersen, Henning Sloth AU - Pedersen HS FAU - Hansen, Jens C AU - Hansen JC LA - eng PT - Journal Article PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Environmental Pollutants) RN - 0 (Fatty Acids) RN - 0 (Insecticides) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Adolescent MH - Adult MH - Animals MH - Arctic Regions MH - *Diet MH - Diet Surveys MH - Energy Intake MH - Environmental Pollutants/analysis/*pharmacokinetics MH - Fatty Acids/blood MH - Female MH - *Food Contamination MH - Greenland MH - Humans MH - Insecticides/analysis/*pharmacokinetics MH - Male MH - Middle Aged MH - Polychlorinated Biphenyls/analysis/*pharmacokinetics MH - *Public Health MH - Seafood MH - Seals, Earless MH - Ursidae MH - Whales EDAT- 2004/08/25 05:00 MHDA- 2004/10/19 09:00 CRDT- 2004/08/25 05:00 PHST- 2004/03/01 00:00 [accepted] PHST- 2004/08/25 05:00 [pubmed] PHST- 2004/10/19 09:00 [medline] PHST- 2004/08/25 05:00 [entrez] AID - S0048-9697(04)00209-8 [pii] AID - 10.1016/j.scitotenv.2004.03.028 [doi] PST - ppublish SO - Sci Total Environ. 2004 Sep 20;331(1-3):177-88. doi: 10.1016/j.scitotenv.2004.03.028.