Beryllium worker

A current worker who is regularly employed in a DOE beryllium activity. At LLNL, this term indicates any worker assigned to a beryllium work area or a regulated beryllium work area.

Breathing zone

A hemisphere forward of the shoulders, centered on the mouth and nose, with a radius of 6 to 9 inches.

CBD

See "Chronic beryllium disease."

CBDPP

Chronic Beryllium Disease Prevention Program.

Chronic beryllium disease

A disease of the lungs caused by the body's immune system and characterized by progressive scarring of the lungs.

Confirmed positive

Positive result based on analysis of two separate blood samples (Be-LPT or an equivalent test).

Contaminated

Presence of beryllium surface contamination in excess of 0.2 µg Be/100 cm2 or, when the visible accumulation of dust is present, in excess of the concentration (in µg Be/g of soil) of beryllium in soil at the point of release.

DOE