Weather tracker: Toronto and New York ranked most polluted from Canada wildfires

High concentration of particulate matter has led to health officials distributing masks and advising people to stay indoorsMore than 500 fires have been raging across Canadian provinces for nearly a month, spreading an orange-brown haze across eastern Canada and midwest and nort-east regions of the US, leading to a suffocating smog extending to major American cities. Toronto and New York have been ranked as the most polluted urban areas affected by wildfires in Canada, according to IQAir.com.The high concentration of particulate matter in the smoke has led to health officials distributing masks and advising people to stay indoors. As wildfires continue to burn through the rest of the season, until cooler temperatures, rain and snow arrive, further episodes of often very poor air quality are to be expected across parts of the US. Continue reading...