The composition, distribution and flux of PCDDs and PCDFs in settling particulate matter (SPM) - a sediment trap study in the northern Baltic -

Long-term high and low-volume air sampling of polychlorinated dibenzo-p-dioxins and dibenzofurans and polycyclic aromatic hydrocarbons along a transect from urban to remote areas on the Swedish Baltic coast

“…By use of washout ratios for the different PAHs from Bidleman (1) and McVeety and Hites (19) and with an annual precipitation of 50 cm/year, the mean Fwe, becomes 9. be compared with fluxes determined from sediment trap studies. From the two studies by Broman et al (9,26) (some data on PCDD/F are our own unpublished), total fluxes of 79 ng/cm*-year for the PAHs (n = 7) and 172 pg/cm2.year for the PCDD/Fs (n = 3) were recorded in the water areas corresponding to the air sampling stations in this study (i.e., OAl, OA2, and OC). The sediment trap flux estimate for PAHs is somewhat higher than the mean total flux calculated from the air concentration data of 51 ng/cm2.year.…”

Application of Pattern Recognition Techniques to Evaluate Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Distributions in Surficial Sediments from the Lower Passaic River and Newark Bay

“…1989;. The patterns of 2, 3, 7, 8-substituted PCDD/Fs in surficial sediments from the inner Stockholm archipelago have been attributed to various common sources of urban pollution, including automobile and shipping traffic, oil heating systems, and one municipal solid waste incinerator (Broman et al, 1989). PCDD/F patterns in surficial sooiments from St. Laurensharhor and Chemieharbor in Rotterdam, The Netherlands, are believed to be similar to those found in fly ash from a nearby municipal/chemical waste incinerator and from effluent from a vinyl chloride monomer production plant, respectively (Evers et al, 1989).…”

Risks and Management of Dioxins and Dioxin-like Compounds in Baltic Sea Fish: An Integrated Assessment

“…While these estimates may account for resuspension from traps, they may miss other remobilization from sediments. As to sedimentation of OC (e.g., Broman et al 1989), it has been calculated to be much higher than in original estimates in the Baltic (Sandberg 2004, p. 15). found that sedimentation in largely laminated Baltic Proper sediments was 4-fold greater than in Gulf of Bothnia where bioturbation dominated.…”

“…Estimates of sedimentation flux of PCDD/Fs in the Baltic by similar sediment traps at different locations and depths vary greatly (Broman et al 1989, Engwall et al 1997b, cf. Isosaari et al 2002c, Annex 6C).…”