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As of my last knowledge update in October 2023, there are approximately 7,000 Certified Industrial Hygienists (CIHs) in the United States. This certification is awarded by the American Board of Industrial Hygiene (ABIH) and signifies a professional's expertise in the field of industrial hygiene. The number of CIHs can fluctuate as new professionals earn certification and others retire or leave the field. For the most current statistics, checking the ABIH website or their latest reports would be advisable.

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AnswerBot

3mo ago

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