PMID- 15575265
OWN - NLM
STAT- MEDLINE
DCOM- 20050307
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 38
IP  - 21
DP  - 2004 Nov 1
TI  - Atmospheric dry deposition of persistent organic pollutants to the Atlantic and 
      inferences for the global oceans.
PG  - 5505-13
AB  - Atmospheric deposition to the oceans is a key process affecting the global 
      dynamics and sinks of persistent organic pollutants (POPs). A new methodology 
      that combines aerosol remote sensing measurements with measured POP aerosol-phase 
      concentrations is presented to derive dry particulate depositional fluxes of POPs 
      to the oceans. These fluxes are compared with those due to diffusive air-water 
      exchange. For all polychlorinated biphenyl (PCB) congeners and lower chlorinated 
      dibenzo-p-dioxins and furans (PCDD/Fs), air-water exchange dominates the dry 
      deposition mechanism. However, this tendency reverses in some areas, such as in 
      marine aerosol influenced areas and dust outflow regions, consistent with the 
      important variability encountered for the depositional fluxes. Seasonal 
      variability is mainly found in mid-high latitudes, due to the important influence 
      of wind speed enhancing dry deposition fluxes and temperature as a driver of the 
      gas-particle partitioning of POPs. The average dry aerosol deposition flux of 
      sigmaPCBs and sigmaPCDD/Fs to the Atlantic Ocean is calculated to be in the order 
      of 66 ng m(-2) yr(-1) and 9 ng m(-2)yr(-1) respectively. The total dry aerosol 
      deposition of sigmaPCBs and sigmaPCDD/Fs to the Atlantic Ocean is estimated to be 
      2200 kg yr(-1) and 500 kg yr(-1), respectively, while the net air-water exchange 
      is higher, 22000 kg sigmaPCBs yr(-1) for PCBs and 1300 kg sigmaPCDD/Fs yr(-1). 
      Furthermore, it is suggested that marine aerosol plays an important role in 
      scavenging atmospheric contaminants.
FAU - Jurado, Elena
AU  - Jurado E
AD  - Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18-26, Barcelona 
      08034, Catalunya, Spain.
FAU - Jaward, Foday M
AU  - Jaward FM
FAU - Lohmann, Rainer
AU  - Lohmann R
FAU - Jones, Kevin C
AU  - Jones KC
FAU - Simo, Rafel
AU  - Simo R
FAU - Dachs, Jordi
AU  - Dachs J
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Furans)
RN  - 0 (Organic Chemicals)
RN  - 0 (Polychlorinated Dibenzodioxins)
RN  - 0 (Water Pollutants, Chemical)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Aerosols/chemistry
MH  - Air Pollutants/*analysis
MH  - Animals
MH  - Atlantic Ocean
MH  - Furans/*analysis/metabolism
MH  - Oceans and Seas
MH  - Organic Chemicals/*analysis
MH  - Polychlorinated Biphenyls/*analysis/metabolism
MH  - Polychlorinated Dibenzodioxins/analogs & derivatives/*analysis/metabolism
MH  - Seasons
MH  - Volatilization
MH  - Water Pollutants, Chemical/analysis/metabolism
EDAT- 2004/12/04 09:00
MHDA- 2005/03/08 09:00
CRDT- 2004/12/04 09:00
PHST- 2004/12/04 09:00 [pubmed]
PHST- 2005/03/08 09:00 [medline]
PHST- 2004/12/04 09:00 [entrez]
AID - 10.1021/es049240v [doi]
PST - ppublish
SO  - Environ Sci Technol. 2004 Nov 1;38(21):5505-13. doi: 10.1021/es049240v.