McMaster researchers identify cause of Hamilton’s mystery soot

Researchers with McMaster University have identified the cause of a mysterious black grime that has blanketed houses and yards near the city's industrial area for decades.

McMaster University researchers studying the soot falling on Hamilton neighbourhoods have determined the grimy, black substance contains toxic chemicals consistent with coal combustion. For the "What's the Grime?" study, they worked with volunteers to collect samples throughout the city.

Rights group identifies Chattogram, Cox’s Bazar, Bhola, Mymensingh and Dhaka as major hotspots