At the Suncor Oil Refinery in Commerce City, some air pollution is visible to the naked eye. But a new study found another unexpected, and invisible, contaminant: radioactivity.

The scientists explained that long-term exposure to elevated levels of Radon, which was a naturally occurring radioactive gas ...

Key Stakeholders including scientists, have called for the development of a comprehensive National Radon Gas Policy, to regulate and minimise its potential devastating health impact ...