Health Hazard Evaluation and Technical Assistance Report No. TA-80-062-852, Seattle Air Traffic Control Center (FAA), Auburn, Washington

摘要

Ionizing and nonionizing radiation measurements were taken at the Seattle Air Traffic Control Center (FAA), (SIC-3662), in Auburn, Washington, on June 26, and July 21 and 22, 1980. A representative of the Professional Air Traffic Controller's Organization requested the evaluation on behalf of an employee at the center who claimed that a cataract in his eye lens resulted from work related radiation exposure. Radar scope measurements were at background radiation levels with no hot spots detected. All measured radiation levels generally were far below the permissible exposure limits; however, the magnetic field measurement at 2 centimeters from the emergency array antenna was slightly above the OSHA evaluation criteria of 0.5 amperes per meter. The electric field measurement was below the 200 volts per meter OSHA criteria. Both fields were below detectable levels at a distance of 15 centimeters. The authors conclude that a hazard from ionizing and nonionizing radiation did not exist at this facility. Measured radiation levels at this worksite should not produce cataracts in exposed personnel. The authors recommend that access to the emergency array antenna be limited.