2025 SEPT: RADON TOOLKIT Rev 1: CHILDREN'S ENVIRONMENTAL HEALTH DAY | Page 3

Radon is an invisible radioactive gas that you can’ t taste or smell. It can only be detected through testing. It is produced by the natural break-down of uranium in rock, soil, and water. Some areas of the U. S. have higher levels of uranium than others, and thus, there is a greater chance that buildings in those areas may have higher radon levels. Regardless of location, any building can have a radon problem.

Radon enters a building by moving up through the ground and then through cracks and holes in the foundation. Buildings can trap radon, which can lead to harmful indoor levels.

1. what is radon?

Radon is an invisible radioactive gas that you can’ t taste or smell. It can only be detected through testing. It is produced by the natural break-down of uranium in rock, soil, and water. Some areas of the U. S. have higher levels of uranium than others, and thus, there is a greater chance that buildings in those areas may have higher radon levels. Regardless of location, any building can have a radon problem.

Radon enters a building by moving up through the ground and then through cracks and holes in the foundation. Buildings can trap radon, which can lead to harmful indoor levels.