What is the Threat of Radon? Radon is the second leading cause of lung cancer after smoking. In the United States, the EPA estimates that about 21,000 lung cancer deaths each year are radon related and in Canada that number stands at approximately 3,000.
The definition of intermittent is something that starts and stops or happens irregularly. An example of intermittent is occasional thunder during a rainstorm. stopping and starting at intervals; pausing from time to time; periodic. Origin of intermittent.
continual, continuous, constant, incessant, perpetual, perennial mean characterized by continued occurrence or recurrence. continual often implies a close prolonged succession or recurrence. continual showers the whole weekend