The chemical name for dioxin is: 2,3,7,8- tetrachlorodibenzo para dioxin (TCDD).
二恶英的化学名叫：2，3，7，8-四氯二苯并对二恶英（TCDD）。
TCDD was evaluated by the WHO's International Agency for Research on Cancer (IARC) in 1997.
世卫组织国际癌症研究所(IARC)于1997年对TCDD进行了评价。
However, TCDD does not affect genetic material and there is a level of exposure below which cancer risk would be negligible.
不过，TCDD并不影响遗传物质，并且低于一定剂量的接触，致癌风险可以忽略不计。
Some 419 types of dioxin-related compounds have been identified but only about 30 of these are considered to have significant toxicity, with TCDD being the most toxic.
大约有419种类似二恶英的化合物被确定，但其中只有近30种被认为具有相当的毒性，以TCDD的毒性最大。
TCDD, the most toxic member of the family, is used as reference compound, and all other dioxins are assigned a toxic potency relative to TCDD, based on experimental studies.
TCDD在这个家族中毒性最强，被用作参照物，所有其它二恶英均根据实验研究确定相对于TCDD的毒性。
TCDD and ve had no significant effects on the levels of plasma estradiol.
TCDD染毒和维生素e对小鼠血浆雌二醇含量均没有明显影响。
TCDD has also been extensively studied for health effects linked to its presence as a contaminant in some batches of the herbicide Agent Orange, which was used as a defoliant during the Vietnam War.
有关TCDD作为某些橙剂(一种在越战中使用的落叶剂)中的有毒物质对健康的影响引起了广泛的研究。
TCDD has also been extensively studied for health effects linked to its presence as a contaminant in some batches of the herbicide Agent Orange, which was used as a defoliant during the Vietnam War.
有关TCDD作为某些橙剂(一种在越战中使用的落叶剂)中的有毒物质对健康的影响引起了广泛的研究。
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