Search results
Results from the WOW.Com Content Network
The uncertainty and variability in the dose–response relationship of dioxins in terms of their toxicity, as well as the ability of dioxins to bioaccumulate, have led WHO experts to recommending very low tolerable daily intake (TDI) of dioxin, 1-4 pg/kg body weight per day, i.e. 7x10 −11 to 2.8x10 −10 g per 70-kg person per day, to allow ...
Incineration and accidental fires can create corrosive byproducts such as hydrochloric acid and hydrofluoric acid, and poisons like halogenated dioxins and furans. Species of Desulfitobacterium are being investigated for their potential in the bioremediation of halogenic organic compounds. [8]
The resulting combustion produced a highly toxic mixture of PCBs, dioxins and furans, which was included in the feed produced and subsequently fed to a large number of pigs. [ 88 ] According to data in 2009, [ 89 ] in 2005 the production of dioxin by the steel industry ILVA in Taranto ( Italy ) accounted for 90.3 per cent of the overall Italian ...
Four main types of halogenated furanones were found in this species. Prevention of biofilm on Delisea pulchra's surface. The halogenated furanones produced by D. pulchra are structurally similar to bacterial signalling molecules called acylated homoserine lactones (AHL). There is evidence that the halogenated furanones attach to the bacteria ...
Among them include triclosan and predioxin which can degrade to produce certains types of dioxins and furans. [1] Notably, however, the particular dioxin formed by degradation of triclosan, 2,8-DCDD, [2] was found to be non-toxic in fish embryos. [3]
Chemical compounds containing such rings are also referred to as furans. Furan is a colorless, flammable, highly volatile liquid with a boiling point close to room temperature. It is soluble in common organic solvents, including alcohol, ether, and acetone, and is slightly soluble in water. [2] Its odor is "strong, ethereal; chloroform-like". [3]
[2] [3] For general population the most important source is food of animal origin like with other dioxin-like compounds. [ 4 ] [ 5 ] [ 6 ] The most relevant congener is 2,3,4,7,8-pentachlorodibenzofuran (2,3,4,7,8-PCDF) which is more toxic and based on relative toxicity more prevalent than other PCDFs.
A polyhalogenated compound (PHC) is any compound with multiple substitutions of halogens.They are of particular interest and importance because they bioaccumulate in humans, and comprise a superset of which has many toxic and carcinogenic industrial chemicals as members.