Excerpt: People who live less than 50 metres from a major road or less than 150 metres from a highway are at a higher risk of developing dementia or Parkinson’s disease, according to new research from UBC.
Researchers looked at 678,000 adults living in Metro Vancouver between 1994 and 1998, and then followed up with them once again from 1999 to 2003. They used postal code information to assess each person’s closeness to the road and their exposure to air pollution, noise and green spaces. They ended up identifying 13,170 cases of dementia, 4,210 cases of Parkinson’s disease, 1,277 cases of Alzheimer’s, and 658 cases of Multiple Sclerosis (MS). Researchers classified the different categories of roads based on the traffic volume and the width of the lanes.
The study’s lead author and UBC PhD candidate Weiran Yuchi told CTV News Vancouver the research found living near a major traffic route increased the risk of dementia by 14 per cent, and increased the risk of Parkinson’s by seven per cent.