title: Phototransformation of polychlorinated dibenzo-p-dioxins from photolysis of pentachlorophenol on soils surface.
abstract: The phototransformation of polychlorinated dibenzo-p-dioxins (PCDDs) by photolysis of pentachlorophenol (PCP) on soil surface under irradiation of UV light in the laboratory has been investigated. Octachlorodibenzo-p-dioxin (OCDD) and heptachlorodibenzo-p-dioxin (H7CDD) were detected from the products of the photoreactions. The effects of soil types with different basic soil physicochemical properties were varied from silt loam, silt clay and clay soil on the formation of PCDDs by irradiation of PCP on soils surface. Fulvic acids can prevent phototransformation of PCDDs by photolysis of PCP on soil surface.
authors.affiliation: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing.
authors.forename: Peng-Yan
authors.initials: PY
authors.lastname: Liu
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Zheng
authors.forename: Xiao-Bai
authors.initials: XB
authors.lastname: Xu
mesh_terms: D001578:Benzopyrans / Q000737:chemistry; D004785:Environmental Pollutants / Q000032:analysis*; D010416:Pentachlorophenol / Q000032:analysis / Q000737:chemistry*; D010782:Photolysis; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis / Q000737:chemistry*; D012987:Soil; D012989:Soil Pollutants / Q000032:analysis*; D014466:Ultraviolet Rays
chemical_list: D001578:Benzopyrans; D004785:Environmental Pollutants; D000072317:Polychlorinated Dibenzodioxins; D012987:Soil; D012989:Soil Pollutants; D010416:Pentachlorophenol; C005023:fulvic acid