Over the next ten years the United States released approximately eleven million gallons of an equal measure of 2,4,5-T and 2,4-D, which came to be known as Agent Orange, over the South Vietnamese countryside.
The Mrak Report supported the conclusions of the Bionetics study, and recommended that 2,4-D and 2,4,5-T both be immediately restricted to prevent human exposure.
Ruckelshaus decided, however, to continue the existing restrictions on 2,4,5-T in contradiction to the advisory committee's recommendation.
Determining the toxicity of 2,4,5-T remained an elusive process, although evidence slowly mounted.
He referred them to more studies and scientists who had expressed concern about the safety of 2,4-D, 2,4,5-T, and the TCDD present in the herbicides used to clear roadways and manage local timber stands.
41) In March, Judge Otto Skopil issued a temporary injunction banning the use of 2,4,5-T and Silvex pending Forest Service explanation of the effects of dioxin on human and animal health.
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.
These included 20 samples from the 2,4,5-T group taken in 1997-2000 and 23 samples collected in 1997-2001 from the more numerous and longer existing TrCP cohort.
The blood lipid TEQ values for the TrCP cohort are more than three times higher than the 2,4,5-T group.
Though they found trace residues in the edible portion of fish from certain regions in the Great Lakes and elsewhere, they said, "the presence of 2,3,7,8-TCDD in fish does not appear to be widespread, but rather is localized in areas near 2,4,5-TCP and 2,4,5-T production sites.