Radon is "the worst thing you've never heard of" -that's according researcher at Simon Fraser University. You cannot see, smell or taste radon. It is very radioactive, emitting alpha radiation and this can lead to the development of lung cancer. An estimated 3200 people a year in Canada die from lung cancer caused by exposure to radon gas. You can see radon potential map-specially North Shore has a high risk or Radon Hazard. (Zone 1) http://www.radonaware.ca/database/files/library/British_Columbia_Radon_Potential_Map.pdf Rent Home Radon Detector for 40 CAD per 2 days. (price for North Shore only) Make sure your home is safe.