Earlier research by Sylvie Marraci has shown that vetiver will take up and break down atrazine.
I was watching a PBS program about frogs and their threatened extermination due to chemicals. In my area the Puget Sound fishery and salt water marine life are threatened by antibiotics, birth control hormones and a host of other human generated chemicals, all ultimately effecting humans.
In India millions of dollars are being spent to clean up waste effluent that pours daily into India's large rivers. Most of these funds are wasted, and do not deal with the original source of the waste.
Vetiver has great potential for reducing the chemicals in waste water - particularly close to source where the scale is manageable. It would be good if the many companies advising and helping to spend tax payers money were to look at some slower cost solutions such as the Vetiver System. Particularly in poor countries.