dioxin


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Related to dioxin: digoxin, furan

dioxin

 [di-ok´sin]
a highly toxic and teratogenic chlorinated hydrocarbon that is a trace contaminant in the herbicides2,4,5-T and agent orange.

di·ox·in

(dī-oks'in),
1. A ring consisting of two oxygen atoms, four CH groups, and two double bonds; the positions of the oxygen atoms are specified by prefixes, as in 1,4-dioxin.
2. Abbreviation for dibenzo[b,e][1,4]dioxin which may be visualized as an anhydride of two molecules of 1,2-benzenediol (pyrocatechol), thus forming two oxygen bridges between two benzene moieties, or as a 1,4-dioxin with a benzene ring fused to catch each of the two CH=CH groups.
3. A contaminant in the herbicide, 2,4,5-T; it is potentially toxic, teratogenic, and carcinogenic.

dioxin

(dī-ŏk′sĭn)
n.
Any of several carcinogenic, mutagenic, and teratogenic polychlorinated heterocyclic aromatic hydrocarbons that can occur as impurities in petroleum-derived herbicides and as byproducts of manufacturing chemicals and burning fuels and waste.
Any of a family of highly toxic chlorinated hydrocarbons in which 2 benzene rings are linked by 2 O2 atoms, which includes dibenzodioxins and dibenzofurans
Lab Increased PT, increased lipid levels

dioxin

Toxicology Any of a family of highly toxic chlorinated hydrocarbons Clinical In humans, intense chronic exposure causes weight loss, myalgias, insomnia, dyspnea, cold intolerance, irritability, peripheral neuropathy, hepatomegaly, hemorrhagic cystitis, chloracne, actinic elastosis, loss of libido, impotence Lab ↑ PT, ↑ lipid levels. See Agent Orange, Times Beach.

di·ox·in

(dī-ok'sin, dī-ok'sin)
1. A ring consisting of two oxygen atoms, four CH groups, and two double bonds; the positions of the oxygen atoms are specified by prefixes, as in 1,4-dioxin.
2. A contaminant in the herbicide, 2,4,5-T; its potential toxicity, carcinogenicity, and teratogenicity are controversial.

dioxin

a chemical byproduct of the manufacture of certain herbicides and bactericides, particularly tetrachlorodibenzo-paradioxin (TCDD), which is extremely toxic.

Dioxin

A toxic chemical found in weed killers that has been linked to the development of endometriosis.
Mentioned in: Endometriosis
References in periodicals archive ?
'The launch of the Dioxin Analyzer and the DFS Software Package for the DFS Magnetic Sector GC-HRMS demonstrates our continued commitment to help customers protect the integrity of the global food chain by providing access to advanced, analytical solutions that meets their individual requirements for the accurate quantification of dioxins and other POPs within any food or feed sample matrix.'
Sorption concentration (Cs) of dioxin to soil followed the order of SS6<SS5<SS4<SS3<SS2<SS1with minor capacity of sorption among these soils.
Bien Hoa airport is considered as one of the dioxin hot spots in the country with about 500,000 cubic metres of dioxin contaminated land.
Dioxin made headlines several years ago at places such as Love Canal, Niagara Falls in the United States, where hundreds of families needed to abandon their homes due to dioxin contamination, and Times Beach, a town in Missouri that was also abandoned as a result of dioxin effluence.
Their use has resulted in hotspots of dioxin contamination, with concentrations of the chemical two to five-fold higher in affected areas in southern Vietnam than in non-contaminated regions.
"The ASME Research Committee on Industrial and Municipal Waste believed that the Society could provide a service by bringing together all pertinent information scientists understood about dioxin what it is, how it forms, how it is destroyed" said Velzy.
Previous analyses had indicated that serum concentrations of dioxins and dioxin-like compounds were associated with later pubertal onset among these boys.
Since the late 1980s, the federal government has employed a successful coordinated strategy across the country to reduce industrial dioxin emission levels and has performed cleanups at known dioxin-contaminated sites, including the former Times Beach site.
The Environmental Protection Agency plan has escalated a decades-long debate over the danger of dioxin, a family of chemical byproducts from industries such as pesticide and herbicide production, waste incineration and smelting.
A few weeks ago the VWA informed Feedinfo News Service that the dioxin was initially detected in egg samples taken under the Dutch national residue control plan for products of animal origin.
Meanwhile, pig and cattle farmers in Northern Ireland are pressing the Irish government for compensation after being forced to hold their animals and having exported meat returned at the height of December's dioxin crisis.
By identifying foods that do not contain dioxins, the number of samples that must be analyzed using HRGC/HRMS is reduced, significantly lowering the cost for laboratories to conduct these analyses.