Temporal trend studies on polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs) in ringed seals from East Greenland
| Autor: | Rune Dietz, Katrin Vorkamp, Suresh Chandra Rastogi, Frank Rigét |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Time Factors
Phenyl Ethers Greenland Polybrominated Biphenyls Public Health Environmental and Occupational Health Phoca General Medicine Management Monitoring Policy and Law Polychlorinated Biphenyls The arctic Polybrominated diphenyl ethers Adipose Tissue Environmental chemistry Blubber Animals Environmental science Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | J. Environ. Monit.. 8:1000-1005 |
| ISSN: | 1464-0333 1464-0325 |
| DOI: | 10.1039/b609522d |
| Popis: | The concentrations of polybrominated diphenyl ethers (PBDEs) 17, 28, 47, 49, 66, 85, 99, 100, 153, 154, and 183 were determined in ringed seal blubber from central East Greenland collected in 1986, 1994, 1999 and during the period 2001 to 2004. The trend of PBDEs was compared with the trends of polychlorinated biphenyls (PCBs) 28, 31, 52, 101, 105, 118, 138, 153, 156, and 180 during the same period. The levels of sigmaPBDE in East Greenland ringed seals ranged from 21.8 ng g(-1) lipid weight (1w) in 1986 to 39.3 ng g(-1) lw in 2001 and are among the highest observed in ringed seal from the Arctic. The dominating congeners were BDE-47 (75.4%) and BDE-99 (9.7%). The concentrations of PBDEs and PCBs increased with the age of the seals, and therefore only young sealsor =4 years old) were included in the temporal trend analyses. No significant trend (p0.14) was observed in sigmaPBDE or the congeners BDE 28, 47 and, 99 during the period while sigmaPCB decreased significantly (p = 0.004) over the period from 1986 to 2004 with an estimated annual rate of 4.3%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|