title: Mobility of chloroaromatic compounds in soil: case studies of Swedish chlorophenol-contaminated sawmill sites.
abstract: This paper summarizes recent studies on the environmental fate of chloroaromatic compounds in chlorophenol (CP)-contaminated soil and groundwater at Swedish sawmill sites. Relative proportions of CPs, polychlorinated phenoxy phenols (PCPPs), polychlorinated diphenyl ethers (PCDEs), polychlorinated dibenzo-p-dioxins (PCDDs), and polychlorinated dibenzofurans (PCDFs) were determined in preservatives, particulate organic matter (POM), dissolved organic matter (DOM), groundwater, and particles filtered from groundwater. All compound classes were found in the different compartments. The fraction of PCPPs, PCDEs, PCDDs, and PCDFs had increased in the soil samples relative to the proportions in the preservatives. This increase showed correlation with the hydrophobicity, that is, PCDDs had the largest increase. Similar correlation was found between hydrophobicity and the importance of partitioning to POM over DOM. The more water soluble compound group, CP, was found equally distributed between POM and DOM. For PCPPs, PCDEs, PCDDs, and PCDFs, the relative partitioning to POM increased with increased hydrophobicity. Despite the relative partitioning towards POM, compared with DOM, cotransport with DOM and suspended colloidal fractions was found to substantially increase the transport of these compounds in the groundwater samples.
authors.affiliation: WSP Environmental, Stockholm, Sweden. sofia.frankki@wspgroup.se
authors.forename: Sofia
authors.initials: S
authors.lastname: Frankki
authors.forename: Ylva
authors.initials: Y
authors.lastname: Persson
authors.forename: Lars
authors.initials: L
authors.lastname: Oberg
authors.forename: Ulf
authors.initials: U
authors.lastname: Skyllberg
authors.forename: Mats
authors.initials: M
authors.lastname: Tysklind
mesh_terms: D001572:Benzofurans / Q000032:analysis*; D002733:Chlorophenols / Q000032:analysis*; D000072338:Dibenzofurans, Polychlorinated; D004784:Environmental Monitoring; D055768:Halogenated Diphenyl Ethers; D006256:Hazardous Waste; D010647:Phenyl Ethers / Q000032:analysis*; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis*; D014934:Wood
chemical_list: D001572:Benzofurans; D002733:Chlorophenols; D000072338:Dibenzofurans, Polychlorinated; D055768:Halogenated Diphenyl Ethers; D006256:Hazardous Waste; D010647:Phenyl Ethers; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants; C021244:polychlorinated diphenyl ethers