Soot falling across Hamilton contains toxic chemicals linked to burning coal, researchers find

McMaster University researchers have identified toxic chemicals in the soot falling on Hamilton, consistent with coal burning. Their "What's the Grime?" study, involving community volunteers, revealed harmful substances linked to coal combustion. This discovery underscores potential health risks from air pollution and highlights the need for stricter environmental regulations. The findings are crucial as they point to broader implications for urban air quality and public health.