I seem to recall having read an article in the past couple of years that radiation exposure during a flight is not considered to be significant and more of an urban legend. I believe it looked at health outcomes in FAs and pilots compared to non-flyers and found no differences in cancer rates. I could be wrong as this is a vague memory. I am an infrequent flyer and have no worries.

I would be more worried about hearing loss. I have a friend who is an audiologist who states that research shows progressive hearing loss and inner ear damage does occur with chronic exposure to elevated noise levels. He's not talking about Pink Floyd rock concerts or using a jack hammer either. Even a moderately elevated chronic noise enviroment will result in long term hearing deficits.

Wear ear plugs if it bothers you.

Anyone know if the Beechcraft are louder than Dash 8s. Never flown on one, but the Dash is very loud, although fun to fly in.

Ford