Radioactivity

Some 5,000 properties in the picturesque lakeside town of Port Hope, ON, once home to a nationally owned uranium and radium refinery, will undergo testing for radon and gamma radiation as part of a cleanup effort scheduled to continue until 2022.
Jan 17, 2014   The Toronto Star
Over forty years, the federal government exploded almost a thousand nuclear warheads under the Nevada desert. Radiation leeched into the aquifers, in a region with a growing population and a water crisis.
Nov 14, 2009   The Los Angeles Times