Many years ago - 20-30 when the first research was being done on Parkinson's disease there was a public health study - possibly published in the Canadian Journal of Public Health. They mapped Montreal into regions of high, medium and low sulfur exposure. There WAS A SIGNIFICANTLY HIGHER correlation with incidence of Parkinson's Disease and where the person lived most of their life. I just remembered this and will try tracking down the original article - unless someone already has! [log in to unmask] On Sat, 5 Apr 1997 [log in to unmask] wrote: > In a message dated 97-04-05 08:13:51 EST, you write: > > << sulfur is neurotoxic? >> > > All chemicals are toxic to some extent. Certain compendia list the toxicity > of these as LD50 (lethal dose that will kill 50% of the test animals). All > personnel in the chemical industry would be afflicted en masse if sulfur and > other chemicals were the causal factors of PD. To my knowledge, the only > one associated with causing PD is the mishap in California with the 'failed' > designer drug. > > Michel >