Estimates of Dietary Intake of Polychlorinated Dioxins, Furans, and Biphenyls from Chinese Total Dietary Study

Introduction Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) are ubiquitous, persistent, lipophilic pollutants in food. Ingestion of contaminated food is the principal way of human exposure to these compounds, Most data about human exposure to PCDD/Fs and dioxin-like PCBs were available from the industrialized countries 2 while the data from developing countries were very scarce. To get the contamination level of 17 2,3,7,8-substituted PCDD/Fs and 12 dioxin-like PCBs in food and estimate of dietary intake in china, the samples from Chinese Total Diet Study (TDS) in 2000 was analyzed for PCDD/Fs and dioxin-like PCBs. With the consumption values for the foods in the market baskets surveyed in 2000, the dietary intake of PCDD/F and dioxin-like PCBs from foods in China was estimated and evaluated firstly.