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What eventually came to be known as
chronic beryllium disease (CBD) was Ž rst identiŽ ed in the
1940s, when a cluster of cases was observed in workers from
the Ź uorescent light industry. The U.S. Atomic Energy Commission
recommended the Ž rst 8-hour occupational exposure
limit (OEL) for beryllium of 2.0 ąg/m3 in 1949, which
was later reviewed and accepted by the America
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