Document Detail

Latitudinal fractionation of polychlorinated biphenyls in surface seawater along a 62 degrees N-89 degrees N transect from the southern Norwegian Sea to the North Pole area.
MedLine Citation:
PMID:  15212246     Owner:  NLM     Status:  MEDLINE    
Surface seawater concentrations of PCBs, relative congener abundance, and possible effects of cold condensation were studied along a transect from the southern Norwegian Sea to the central Arctic Ocean (62 degrees N-89 degrees N). Large volume samples were collected from an ice breaker using a stainless steel surface seawater intake connected online to an ultra-clean laboratory. Concentrations of all studied PCB congeners, except for trichlorinated PCB 18, decreased with latitude. For instance, PCB 52 decreased from 470 fg L(-1) at 62 degrees N to 110 fg L(-1) at 89 degrees N and PCB 180 from 110 to 12 fg L(-1). Concentrations in the central Arctic Ocean were on the order of 10-100 fg L(-1) for the most abundant congeners. The relative contribution oftrichlorinated PCBs to the total PCB concentration increased with latitude, the tetrachlorinated contribution to the total PCBs did not show any correlation to latitude, and the relative contribution of heavier congeners decreased with latitude. This study establishes the occurrence at very low abundances of PCBs in seawater in the central Arctic Ocean and demonstrates a northward concentration decrease. The latitudinal shift in congener pattern is reflecting the relative propensity of the PCB congeners to undergo long-range transport in the Arctic and is consistent with their relative vapor pressures.
Anna Sobek; Orjan Gustafsson
Related Documents :
15992976 - Specific accumulation of organochlorines in human breast milk from indonesia: levels, d...
15575266 - Seasonal and spatial variation of polychlorinated naphthalenes and non-/mono-ortho-subs...
15778006 - Human exposure to dioxins from food, 1999-2002.
8907236 - Approach to risk assessment of chlorinated dioxins from yusho pcb poisoning.
25211506 - Evaluation of the placement of mobile fruit and vegetable vendors to alleviate food des...
1422946 - Allergy. conventional and alternative concepts. a report of the royal college of physic...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  38     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-06-23     Completed Date:  2004-10-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2746-51     Citation Subset:  IM    
Stockholm University, Institute of Applied Environmental Research (ITM), SE-10691 Stockholm, Sweden.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Air Movements
Air Pollutants
Arctic Regions
Chemical Fractionation
Polychlorinated Biphenyls / analysis*
Seawater / analysis,  chemistry*
Water Pollutants, Chemical / analysis*
Reg. No./Substance:
0/Air Pollutants; 0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Economic and health risk trade-offs of swim closures at a Lake Michigan beach.
Next Document:  Distribution and toxicity of sediment-associated pesticides in agriculture-dominated water bodies of...