I cannot answer any of the questions you asked (I will try to research them though) BUT... There was a study done which showed that people exposed to herbicides had a higher incidence of PD (other things correllating w/ PD are history of depression, non-tobacco use & age over 60). This does not establish relationships but just statistical correlations. They could be clues or just chance. Colman Mullin Wendy, Nancy, Debbie or Colman Mullin [log in to unmask] On Mon, 27 Mar 1995, Margie Nestler wrote: > Question from my support group- > BACKGROUND-58 year old male, PD since age 40, had Testicular cancer, worked > for railroad . > > Herbicide SUPARAQUAT with the main ingredient being MPTP (1-METHYL > 4-PHENYL-1236 TETRAHYDROP-UNDINE) > > does anyone know--- > The year manufactured? > The chemical name? > The manufacturer's name? > The year outlawed? > > Thanks. > Margie Carnegie,PA. >