Table.
aOne additional employee (Employee A) no longer worked at the facility and was unavailable for interview; he is excluded from this table. During his original contact with the Alaska Section of Epidemiology, he reported that he had worked in the fire assay room.
bFive employees were unsure what year their homes were built.
cOne employee was unsure when his home was built.
BLL = blood lead level
μg/dL = microgram/deciliter