Ultrafine particles linked to deaths: Canada study
Credit: Unsplash/CC0 Public Domain Air pollution caused by “ultrafine particles,” emitted by automobiles and industrial activity, has been linked to 1,100 deaths a year in Montreal and Toronto, according to new Canadian research. So-called UFPs—1,000 times thinner than a strand of hair—have been found to cause cardiovascular disease and have been linked to cancer in