(Beyond Pesticides, May 20, 2010.Posted in Antibacterial, Triclosan, Water) Triclosan is one of the most detected chemicals in US waterways. It is an endocrine disruptor with specific effect on male an dfemale hormones and the thyroid gland. It is extensively used in consumer goods and triclosan and its metabolites are present in, fish, umbilical cord blood and human milk and urine. It produces 4 specific dioxins which have increased 200-300%."In the most current sediments, these triclosan-derived dioxins account for about 30 percent of the total dioxin mass.” Dioxins are persistent organic pollutants that bioaccumulate in humans and other animals, especially in fatty tissue. Dioxin can be highly carcinogenic and can cause severe health problems.
IN this document you will see that 2,4-D has a reasonably high leaching potential, and RoundUp formulations are in the middle. [ reference:
Hill, B.D., Miller, J.J., Harker, K.N., Byers, S.D., Inaba, D.J., and Zhang, C. (2000). "Estimating the relative leaching potential of herbicides in Alberta soils.", Water Quality Research Journal of Canada, 35(4), pp. 693-710.]