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  2. Toxic equivalency factor - Wikipedia

    en.wikipedia.org/wiki/Toxic_Equivalency_Factor

    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 toxic equivalency (TEQ). It is a single figure resulting from the product of the concentration and individual TEF values of each congener. [1]

  3. Dibenzofuran - Wikipedia

    en.wikipedia.org/wiki/Dibenzofuran

    Dibenzofuran is a heterocyclic organic compound with the chemical structure shown at right. It is an aromatic compound that has two benzene rings fused to a central furan ring. All the numbered carbon atoms have a hydrogen atom bonded to each of them.

  4. Polychlorinated dibenzofurans - Wikipedia

    en.wikipedia.org/wiki/Polychlorinated_dibenzofurans

    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 ...

  5. Not Enough Doctors Are Treating Heroin Addiction With A Life ...

    projects.huffingtonpost.com/dying-to-be-free...

    But just 31 percent of the 7,745 doctors in those areas are certified to treat the legal limit of 100 patients. Even in Vermont, where the governor in 2014 signed several bills adding $6.8 million in additional funding for medication-assisted treatment programs, only 28 percent or just 60 doctors are certified at the 100-patient level.

  6. 2,3,7,8-Tetrachlorodibenzofuran - Wikipedia

    en.wikipedia.org/wiki/2,3,7,8-tetrachlorodibenzo...

    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.

  7. Polychlorinated dibenzodioxins - Wikipedia

    en.wikipedia.org/wiki/Polychlorinated_dibenzodioxins

    The toxicity of PCDDs depends on the number and positions of the chlorine atoms. Congeners that have chlorine in the 2, 3, 7, and 8 positions have been found to be significantly toxic. In fact, 7 congeners have chlorine atoms in the relevant positions which were considered toxic by the World Health Organization toxic equivalent (WHO-TEQ) scheme ...

  8. Benzodiazepine overdose - Wikipedia

    en.wikipedia.org/wiki/Benzodiazepine_overdose

    Benzodiazepines are one of the most highly prescribed classes of drugs, [7] and they are commonly used in self-poisoning. [8] [9] Over 10 years in the United Kingdom, 1512 fatal poisonings have been attributed to benzodiazepines with or without alcohol. [10] Temazepam was shown to be more toxic than the majority of benzodiazepines.

  9. Fixed-dose procedure - Wikipedia

    en.wikipedia.org/wiki/Fixed-dose_procedure

    The fixed-dose procedure (FDP), proposed in 1992 by the British Toxicology Society, is a method to assess a substance's acute oral toxicity. [1] [2]In comparison to the older LD 50 test developed in 1927, this procedure produces similar results while using fewer animals and causing less pain and suffering. [3]

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