摘要:Summary Dioxins and dioxin-like compounds include 29 different congeners of dioxins, furans and polychlorinated biphenyls (PCB). Toxicity of the listed compounds is very similar. The most toxic congener is 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Toxic potential of other dioxins (PCDD) and furans (PCDF) is defined in relation to TCDD. Human exposure to dioxins mainly refers to exposure through food. When dioxins enter the organism, they are partly metabolized and eliminated from the organism, and partly accumulated in the fatty tissue. It has been legally regulated that the share of dioxins in food and animal food is expressed by the toxic equivalent (TEQ).