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2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a polychlorinated dibenzo-p-dioxin (sometimes shortened, though inaccurately, to simply 'dioxin') [3] with the chemical formula C 12 H 4 Cl 4 O 2. Pure TCDD is a colorless solid with no distinguishable odor at room temperature.
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is the reference chemical to which the toxicity of other dioxins and DLCs are compared. TCDD is the most toxic DLC known. TCDD is the most toxic DLC known. Other dioxins and DLCs are assigned a scaling factor, or TEF, in comparison to TCDD.
2,3,7,8-Tetrachlorodibenzofuran (TCDF) is a polychlorinated dibenzofuran with a chemical formula of C 12 H 4 Cl 4 O. TCDF is part of the chlorinated benzofuran (CDF) family that contains between 1 and 8 chlorine atoms attached to the parent dibenzofuran ring system. The CDF family includes 135 compounds, of which only a few have been studied.
General chemical structure of PCDFs, where 1 ≤ n+m ≤ 8 Structures of the ten 2,3,7,8-substituted PCDF congeners that are toxicologically of most relevance Polychlorinated dibenzofurans ( PCDFs ) are a family of organic compounds with one or several of the hydrogens in the dibenzofuran structure replaced by chlorines.
The 2,4,5-T used was contaminated with 2,3,7,8-tetrachlorodibenzodioxin (TCDD), an extremely toxic dioxin compound. During the Vietnam war, between 1962 and 1971, the United States military sprayed 20,000,000 U.S. gallons (76,000,000 L) of chemical herbicides and defoliants in Vietnam, eastern Laos and parts of Cambodia, as part of Operation ...
The antibody treatment, sasanlimab, in combination with Bacillus Calmette-Guérin (BCG) vaccine met the main goal of the study in patients with high-risk non-muscle invasive bladder cancer (NMIBC ...
Xenobiotic metabolizing enzymes help with the metabolic process by transforming and the excretion of chemicals. The most potent inducer of CYP1A1 is 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). In addition, TCDD induces a broad spectrum of biochemical and toxic effects, such as teratogenesis, immunosuppression and tumor promotion.
The bank says most people affected by Nam Theun 2 are better off than they were before, with surveys showing many families having more savings and assets and fewer underweight children. The bank says the increase in the numbers of people identified as being affected by the dam came because the project’s managers used a broader definition of ...