PCDD/F MASS BALANCE IN A COASTAL ESTUARY OF THE BALTIC SEA: A FIELD STUDY
This paper presents mass balances for 17 congeners of PCDD/F in a coastal area in the southern Bothnian Sea, which is a sub basin of the Baltic Sea. The area is known to be one of the worlds most contaminated areas in terms of toxic levels of dioxins and furans in fatty fish. The calculated mass balances were based on measured concentrations in tributary water and sea water combined with estimates of water fluxes in the tributaries and water exchange with the surrounding sea. Exchange with the atmosphere and with sediments was also indirectly quantified. We found that the mass balance was dominated by exchange with the surrounding sea with smaller contributions from tributary inflows and atmospheric deposition. The sediments appeared to function as sinks of PCDD/Fs. Apparently, all important fluxes into and out from the studied systems were quantified by our measurements and we did not need any additional sinks or sources to explain the results.
Malmaeus J M Karlsson O M Josefsson S Wiberg K
IVL Swedish Environmental Research Institute,P.O. Box 210 60,SE-100 31 Stockholm,Sweden IVL Swedish Environmental Research Institute,P.O. Box 210 60,SE-100 31 Stockholm,Sweden Department o Department of Chemistry,Environmental Chemistry,Umea University,SE-901 87 Umea Sweden
国际会议
北京
英文
1-6
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）