Estimation of OCDD degradation rate in soil
ZHAO Xing-ru , ZHENG Ming-hui , ZHANG Bing , QIAN Yong , XU Xiao-bai
DOI:
Received ,Revised , Accepted , Available online
Volume 17,2005,Pages 981-983
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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.
