2,4,5-T


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2,4,5-T

 
2,4,5-trichlorophenoxyacetic acid, a toxic herbicide; it is a component of agent orange.

2,4,5-T

Abbreviation for (2,4,5-trichlorophenoxy)acetic acid.
References in periodicals archive ?
WorkSafe Tasmania is coordinating a central point of contact through our website and helpline relating to the legacy workplace use of 2,4,5-T.
Efecto de los factores genotipo, medio de cultivo y presencia de brasionoesteroides en la respuesta morfogenica de explantes foliares de tres genotipos de Theobroma cacao L., 63 dias despues del establecimiento Factor Explantes con Explantes con Numero de callo (%) embriones (%) embriones Genotipo Carmelo 75.62 b 1.87 a 12.8 a H13 x UF-273 87.50 a 5.62 a 35.2 a PA-169 x UF-273 75.75 b 5.00 a 28.8 a Regulador (DKW+2,4-D) KIN 75.66 a 5.00 ab 30.0 ab 2ip 81.33 a 10.83 a 44.4 a TDZ 77.66 a 0.00 b 0.0 b 2,4,5-T 83.33 a 0.83 b 2.4 b Tipo de explante Petalo 7941 a 4.16 a 31.2 a Estaminodio 79.83 a 4.16 a 43.2 a Epibrasinolida Ausencia 82.50 a 2.08 a 33.6 a Presencia 76.75 a 6.25 a 43.2 a C.V.
The VA and chemical manufacturers decided it was less expensive to pay off the relative few who claimed harm than it would be to fight in court, and not to fight banning 2,4,5-T. That is far different from admitting harm was caused.
In 1970 came an embarrassing admission from Dow vice-president Julius Johnson, testifying before a House Subcommittee on the "Effects of 2,4,5-T on Man and the Environment," chaired by Michigan Senator Philip Hart.
Doyle: The 2,4,5-T story is especially illustrative of Dow's culture.
"Monsanto Company today reported that no apparent relationship exists between TCDD, the toxic dioxin contaminant in 'Agent Orange,' and the cause of death of 58 employees exposed to it during 2,4,5-T herbicide production at the company's Nitro, W.
2,4-D has other dioxins that have been considered less toxic than the 2,4,5-T contaminants.
Without directly addressing the considerable "margin of safety" Newton wants to associate with exposure to pesticides such as 2,4,-D and 2,4,5-T, it is interesting that the only mechanism of toxicity his commentary endeavors to consider worthy of our concern is that of acute toxicity.
In a paper given at the same meeting, Lennart Hardell reported on fat biopsies taken from seven such workers who had presumably received brief (two-week to 10-month) but substantial exposures to 2,4,5-T between 20 and 30 years ago, and who now have sarcomas.
Although the Environmental Protection Agency stopped 2,4,5-T in an emergency cancellation, the use of 2,4-D has continued unabated, and indeed is one of the most widely used toxic chemicals in America.
From 1961 to 1988, over 600 workers in this chemical factory produced 2,4,5-trichlorophenol (TrCP) that was used as a wood preservative and as an intermediate in the further production of both the germicide hexachlorophene and the phenoxy herbicide 2,4,5-trichlorophenoxy acetic acid (2,4,5-T).
Various formulations were used; most were mixtures of the phenoxy herbicides 2,4-D and 2,4,5-T. The different formulations were named according to the color-coded drums they were shipped in; the most widely used--and perhaps the best remembered--was Agent Orange, composed of equal parts 2,4-D and 2,4,5-T.