Radon is an odorless and tasteless radioactive gas that occurs naturally in the ground. It can seep into any house that is in contact with the ground. Some parts of New Jersey are more and some less likely to have radon. Radon is a known cause of lung cancer.
A radon test can be conducted by your Home Inspector to learn what the concentration is. If the radon is high a mitigation system can be installed to bring the radon to an acceptable level.