Ozone generators could be used to kill anthrax spores in mail safely and cheaply, says a US company – but some experts say the system remains unproven. Electron beam irradiation is used at some ...

DENVER (CBS4)- Low-flying aircraft will be flying along the Front Range over the next several weeks to test Colorado's ozone. NASA scientists will be checking out Colorado's ozone during a month-long ...

KUSA—The Environmental Protection Agency is pushing for tougher ozone rules. Opponents started pushing back on Colorado's airwaves this week. The National Association of Manufacturers (a group with ...