Index readings fall into one of six color-coded categories, ranging from green for the best conditions ... research suggests that wildfire smoke may be more toxic to the lungs than ordinary ...

TOXIC smoke is choking Spring City. Residents, some hospitalised or forced to flee, are sounding alarms over a health emergency they say has been years in the making and still ignored. The latest ...

Some 160,000 people were confined to their homes after a fire at an industrial estate caused a toxic cloud of chlorine. The fire services reported "no casualties" thus far. An order was lifted on ...