Like many medical experts, McKenas says studies that link high altitude radiation with increased cancers and birth defects are inconclusive. But in Europe, beginning this month, airlines are required by law to notify their flight crews how much radiation they are recieving and how to alter their schedules to reduce exposure. Pregnant crew members get special protection because they have a lower level of acceptable radiation exposure. At British Airways, a pregnant crew member is given ground duty as soon as she notifies the airline about her condition. At American, a pregnant crew member is not grounded until the third trimester of pregnancy unless she requests it.
Radiation is ultimately a money matter for airlines.
They could reduce exposure by flying at lower altitudes or shielding their aircraft, but both solutions are said to be too expensive. Until more health studies are finished, the human cost won't be known. WFAA-TV Co. All Rights Reserved.