Three Mile Island accident
He started his research career in the aftermath of the Three Mile Island accident in Pennsylvania in 1979. His study describing the occurrence of radioactive iodine in meadow voles (Microtus pennsylvanicus) was the only peer-reviewed scientific study documenting radioactive contamination of the wild food chain in the vicinity of Three Mile Island. Subsequent studies examining the deposition of cesium-137 in the white-tailed deer indicated there was not widespread contamination of cesium in the vicinity of Three Mile Island following the Three Mile Island accident.