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Infobox references. 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.
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 ...
Toxic equivalency factor ( TEF) expresses the toxicity of dioxins, furans and PCBs in terms of the most toxic form of dioxin, 2,3,7,8-TCDD. [ 1] The toxicity of the individual congeners may vary by orders of magnitude . With the TEFs, the toxicity of a mixture of dioxins and dioxin-like compounds can be expressed in a single number – the ...
Vice President Kamala Harris is capitalizing on the trappings of office — and the power of strong imagery — to sustain the momentum surrounding her candidacy in hopes of building a cultural ...
Sitting in the noisy dayroom of Mule Creek State Prison in Ione, Calif., as he speaks over a grainy video call, Scott Peterson looks more like a laidback surfer than a man convicted of the heinous ...
August 13, 2024 at 6:15 AM. Million Dollar Listing Los Angeles showcases Tracy Tutor, 48, as a blonde bombshell who can seriously get a house sold. She's been a California resident all her life ...
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Polychlorinated dibenzofurans ( PCDFs) are a family of organic compounds with one or several of the hydrogens in the dibenzofuran structure replaced by chlorines. For example, 2,3,7,8-tetrachlorodibenzofuran (TCDF) has chlorine atoms substituted for each of the hydrogens on the number 2, 3, 7, and 8 carbons (see structure in the upper left ...