title: 2,4,6,8-Tetrachlorodibenzothiophene in the Newark Bay Estuary: the likely source and reaction pathways.
abstract: Historic industrial activity along the Newark Bay Estuary has resulted in pollution from a number of contaminants; one of which is 2,4,6,8-tetrachlorodibenzothiophene (2,4,6,8-TCDT), a unique chemical contaminant whose origins have not been adequately explained. This research demonstrates that the probable source of 2,4,6,8-TCDT was the chlorination of phenol produced via the sulfonation method. Thiophenol, the major impurity in this type of phenol, was likely converted to 2,4,6,8-TCDT through one or more pathways during the production of 2,4-dichlorophenol, 2,4-dichlorophenoxyacetic acid (2,4-D), or 2,4,6-trichlorophenol. From a mass balance standpoint, production of these chemicals at an industrial plant along the Passaic River could account for the 2,4,6,8-TCDT in the Newark Bay Estuary.
authors.affiliation: Matson & Associates, Inc., 331 East Foster Avenue, State College, PA 16801, United States. Electronic address: bparette@matson-associates.com.
authors.forename: Robert
authors.initials: R
authors.lastname: Parette
authors.affiliation: Matson & Associates, Inc., 331 East Foster Avenue, State College, PA 16801, United States.
authors.forename: Wendy N
authors.initials: WN
authors.lastname: Pearson
mesh_terms: D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D054879:Halogenation; D009515:New Jersey; D009792:Oceans and Seas; D010636:Phenols / Q000737:chemistry; D045483:Rivers / Q000737:chemistry; D012987:Soil / Q000737:chemistry; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013876:Thiophenes / Q000032:analysis / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*
chemical_list: C000592952:2,4,6,8-tetrachlorodibenzothiophene; D010636:Phenols; D012987:Soil; D013438:Sulfhydryl Compounds; D013876:Thiophenes; D014874:Water Pollutants, Chemical; C042983:thiophenol
keywords: 2,4-Dichlorophenoxyacetic acid (2,4-D); Newark Bay; Passaic River; Tetrachlorodibenzodioxin (TCDD); Tetrachlorodibenzothiophene (TCDT); Thiophenol