Evidence suggests exposure to toxic chemicals, viruses, bacteria and heavy metals may cause dopamine-producing cells to die.
“There has been much speculation about a link between the use of herbicides and pesticides and the development of Parkinson’s,” said EPDA.
The organisation added: “Active research into the causes of Parkinson’s continues every day.”
Risk factors
The biggest risk factor for developing Parkinson’s disease is being 60 years old or older.