PMID- 14667725
OWN - NLM
STAT- MEDLINE
DCOM- 20040610
LR  - 20190901
IS  - 0269-7491 (Print)
IS  - 0269-7491 (Linking)
VI  - 128
IP  - 1-2
DP  - 2004
TI  - Latitudinal and seasonal capacity of the surface oceans as a reservoir of 
      polychlorinated biphenyls.
PG  - 149-62
AB  - The oceans play an important role as a global reservoir and ultimate sink of 
      persistent organic pollutants (POPs) such as polychlorinated biphenyls congeners 
      (PCBs). However, the physical and biogeochemical variables that affect the 
      oceanic capacity to retain PCBs show an important spatial and temporal 
      variability which have not been studied in detail, so far. The objective of this 
      paper is to assess the seasonal and spatial variability of the ocean's maximum 
      capacity to act as a reservoir of atmospherically transported and deposited PCBs. 
      A level I fugacity model is used which incorporates the environmental variables 
      of temperature, phytoplankton biomass, and mixed layer depth, as determined from 
      remote sensing and from climatological datasets. It is shown that temperature, 
      phytoplankton biomass and mixed layer depth influence the potential PCB reservoir 
      of the oceans, being phytoplankton biomass specially important in the oceanic 
      productive regions. The ocean's maximum capacities to hold PCBs are estimated. 
      They are compared to a budget of PCBs in the surface oceans derived using a level 
      III model that assumes steady state and which incorporates water column settling 
      fluxes as a loss process. Results suggest that settling fluxes will keep the 
      surface oceanic reservoir of PCBs well below its maximum capacity, especially for 
      the more hydrophobic compounds. The strong seasonal and latitudinal variability 
      of the surface ocean's storage capacity needs further research, because it plays 
      an important role in the global biogeochemical cycles controlling the ultimate 
      sink of PCBs. Because this modeling exercise incorporates variations in downward 
      fluxes driven by phytoplankton and the extent of the water column mixing, it 
      predicts more complex latitudinal variations in PCBs concentrations than those 
      previously suggested.
FAU - Jurado, Elena
AU  - Jurado E
AD  - Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18-26, Barcelona 
      08034, Catalunya, Spain. jdmqam@cid.csic.es
FAU - Lohmann, Rainer
AU  - Lohmann R
FAU - Meijer, Sandra
AU  - Meijer S
FAU - Jones, Kevin C
AU  - Jones KC
FAU - Dachs, Jordi
AU  - Dachs J
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Air Pollutants)
RN  - 0 (Water Pollutants, Chemical)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Air Pollutants/analysis
MH  - *Geography
MH  - Models, Theoretical
MH  - Oceans and Seas
MH  - Polychlorinated Biphenyls/*analysis
MH  - *Seasons
MH  - Time Factors
MH  - Water Movements
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2003/12/12 05:00
MHDA- 2004/06/21 10:00
CRDT- 2003/12/12 05:00
PHST- 2003/12/12 05:00 [pubmed]
PHST- 2004/06/21 10:00 [medline]
PHST- 2003/12/12 05:00 [entrez]
AID - S0269749103003397 [pii]
AID - 10.1016/j.envpol.2003.08.039 [doi]
PST - ppublish
SO  - Environ Pollut. 2004;128(1-2):149-62. doi: 10.1016/j.envpol.2003.08.039.