Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What Are Toxic Equivalents (TEQs) of Dioxins/Furans?

0
Posted

What Are Toxic Equivalents (TEQs) of Dioxins/Furans?

0

You must report releases, disposals and transfers of dioxins/furans in units of grams Toxic Equivalent (TEQ) of the 17 congeners listed in Table 9. Dioxins and furans are often found in complex mixtures, typically at extremely low concentrations, making it difficult to determine the cumulative toxicity of the mixture. Accordingly, scientists have assigned toxic equivalency factors (TEFs) to each dioxin/furan congener as weighting factors. These TEFs are assigned relative to the toxicity of 2,3,7,8-TCDD, the most toxic congener, which is assigned a TEF of one. To apply and compare TEQs, the values must be calculated using the same set of TEFs. Most of the release data on dioxins/furans currently available in Canada are in units of international toxic equivalents (TEQs) (North Atlantic Treaty Organization/Committee on the Challenges of Modern Society [NATO/CCMS, 1998]). More recent work undertaken for the World Health Organization (van den Berg, 1998) has resulted in a revised set of TEF

Related Questions

What is your question?

*Sadly, we had to bring back ads too. Hopefully more targeted.