Estimation of OCDD degradation rate in soil

Article type: Research Article

Authors: ZHAO, Xing-ru | ZHENG, Ming-hui | ZHANG, Bing | QIAN, Yong | XU, Xiao-bai

Affiliations: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing 100085, China

Note: [] Corresponding author. E-mail: zhengmh@mail.rcees.ac.cn

Abstract: The current concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in soils contaminated with Chinese technical product sodium pentachlorophenate (Na-PCP). The estimated half-life of octachlorodioxin (OCDD) was about 14 years in contaminated soils based on the local historical record and mass balance calculation during the past 43 years (1960–2003). The isomer profiles remained the same regardless of paddy field soil or riverbank soil. The results indicated that the congenerspecific information was efficient in estimating the PCDD/Fs fate in contaminated soils.

Keywords: OCDD, degradation rate, Na-PCP

Journal: Journal of Environmental Sciences, vol. 17, no. 6, pp. 981-983, 2005