Dioxins

A general term that describes a large group of chemicals that are highly persistent in the environment. The most toxic compound is 2,3,7,8-tetrachlorodibenzo-p-dioxin or TCDD. Dioxins are generally formed as unintentional by-products of industrial processes involving chlorine (such as waste incineration, chemical and pesticide manufacturing and pul...
Found on http://www.encyclo.co.uk/local/20453

Dioxins

a group of toxic organic substances, containing carbon, hydrogen, oxygen and chlorine, resistant to biodegradation, produced when organic material is incinerated at low temperatures.
Found on http://www.oasisenviro.co.uk/Glossary%20C%20to%20E.htm

Dioxins

are a group of 80 or so chlorinated compounds that occur as contaminants of a number of industrial processes involving chlorinated substances. One dioxin, TCDD, is one of the most toxic compounds known and was found as a contaminant of 245T weedkiller, called 'Agent Orange' in Vietnam. It was also released over the town of Seveso in Italy...
Found on http://www.epaw.co.uk/EPT/glossary.html

Dioxins

Collective name for a group of compounds called dibenzo-p-dioxins.
Found on http://www.roadsafeeurope.com/useful_info/Glossary

Dioxins

A group of approximately 75 chlorinated hydrocarbons formed as by-products of chemical reactions involving chlorine (Cl) and hydrocarbons. Dioxins appear as manufacturing impurities in some herbicides, wood preservatives and disinfectants, and are released into the environment during the incineration of chlorine-based plastics or as a result of the...
Found on http://www.frontierassoc.net/greenaffordablehousing/tools/ChemicalTerms.sht

dioxins

Heterocyclic hydrocarbons present as trace contaminants in herbicides, especially the chlorinated dioxin 2,3,7,8-tetrachlorodibenzo-p-dioxin (tetrachlorobenzodioxin). Many dioxins are teratogenic and carcinogenic. ... (12 Dec 1998) ...
Found on http://www.encyclo.co.uk/local/20973

dioxins

One of the most toxic groups of chemicals known. Dioxins are chlorine-containing hydrocarbons that are considered extremely toxic carcinogenic agents. The terms 'dioxin' or 'dioxins and furans' generally refers to a group of 210 chlorinated pollutants, chemically known as the polychlorinated dibenzo...
Found on http://www.daviddarling.info/encyclopedia/D/AE_dioxins.html
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