Thousands across two US states told to ‘stay indoors’ amid lethal air warning

Thousands of Americans living near two major cities have been advised to stay indoors amid concerns over the levels of airborne pollutants, after some toxins in the atmosphere were revealed to be so lethal that they could even contribute to heart attacks. The US Environmental Protection Agency issued the warning over conditions in Florida’s Daytona Beach, and the city of Atlanta, Georgia. (Picture: David Rosenblum/Icon Sportswire via Getty Images) According to the agency’s live tracking data...