PMID- 12775043
OWN - NLM
STAT- MEDLINE
DCOM- 20031006
LR  - 20190714
IS  - 0013-936X (Print)
IS  - 0013-936X (Linking)
VI  - 37
IP  - 9
DP  - 2003 May 1
TI  - Reevaluation of air-water exchange fluxes of PCBs in Green Bay and southern Lake 
      Michigan.
PG  - 1739-43
AB  - Air-water exchange of persistent organic pollutants (POPs) such as 
      polychlorinated biphenyls (PCBs) is an import process for the delivery of 
      contaminants to water bodies, as well as for their removal, and is thus a pivotal 
      parameter in the construction of mass balances in aquatic systems. Simultaneous 
      measurements of PCB concentrations in the gas and dissolved phases conducted in 
      Green Bay in 1989 and in southern Lake Michigan in 1994-1995 were used to 
      estimate air-water exchange fluxes. In this work, improved Henry's law constants 
      for PCBs and new mass-transfer rates across the air-water interface were used to 
      update the previous calculations. The new model calculations suggest that the net 
      volatilization flux of PCBs out of Green Bay ranges from +170 to +5300 ng m(-2) 
      day(-1), which is 2-20 times larger than previous estimates. The flux of PCBs in 
      southern Lake Michigan exhibits net volatilization of +0.5 to +230 ng m(-2) 
      day(-1) throughout the study period (May and July 1994, January 1995), whereas 
      previous estimates reported that the net flux was seasonally absorptive. Thus, 
      water-to-air fluxes are more important for the removal of PCBs from both Green 
      Bay and Lake Michigan than previously recognized.
FAU - Totten, Lisa A
AU  - Totten LA
AD  - Department of Environmental Sciences, Rutgers University, 14 College Farm Road, 
      New Brunswick, New Jersey 08901, USA. totten@envsci.rutgers.edu
FAU - Gigliotti, Cari L
AU  - Gigliotti CL
FAU - Offenberg, John H
AU  - Offenberg JH
FAU - Baker, Joel E
AU  - Baker JE
FAU - Eisenreich, Steven J
AU  - Eisenreich SJ
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Environmental Pollutants)
RN  - 059QF0KO0R (Water)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
CIN - Environ Sci Technol. 2004 Mar 1;38(5):1626-8; author reply 1629-32. PMID: 
      15046371
MH  - Air
MH  - Environmental Monitoring
MH  - Environmental Pollutants/*analysis
MH  - Great Lakes Region
MH  - Polychlorinated Biphenyls/*analysis/chemistry
MH  - Seasons
MH  - Volatilization
MH  - Water
EDAT- 2003/05/31 05:00
MHDA- 2003/10/08 05:00
CRDT- 2003/05/31 05:00
PHST- 2003/05/31 05:00 [pubmed]
PHST- 2003/10/08 05:00 [medline]
PHST- 2003/05/31 05:00 [entrez]
AID - 10.1021/es026093x [doi]
PST - ppublish
SO  - Environ Sci Technol. 2003 May 1;37(9):1739-43. doi: 10.1021/es026093x.