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  2. American Conference of Governmental Industrial Hygienists

    en.wikipedia.org/wiki/American_Conference_of...

    The National Conference of Governmental Industrial Hygienists (NCGIH) [2] [3] convened on June 27, 1938, in Washington, D.C. NCGIH's original constitution limited full membership to two representatives from each governmental industrial hygiene agency. Associate membership was made available to other professional personnel of the agencies ...

  3. American Industrial Hygiene Association - Wikipedia

    en.wikipedia.org/wiki/American_Industrial...

    The AIHA was founded in 1939 [1] by a cross-disciplinary group of professionals and government agencies concerned with worker health. [11]The history of the American Industrial Hygiene Association began in the 1930s with interested people already meeting together under the auspices of other organizations to include the American Public Health Association, the American Chemical Society, the ...

  4. Threshold limit value - Wikipedia

    en.wikipedia.org/wiki/Threshold_limit_value

    Many people accredit the idea of government responsibility for the protection of its workers in the workplace to Franklin D. Roosevelt in the Great Depression era. The formation of the National Conference of Governmental Industrial Hygienists (later to be renamed the American Conference of Governmental Industrial Hygienists) in 1938 was a direct response to this idea.

  5. American Dental Hygienists' Association - Wikipedia

    en.wikipedia.org/wiki/American_Dental_Hygienists...

    The American Dental Hygienists' Association headquarters building in Chicago. The American Dental Hygienists' Association (ADHA) is the largest national United States organization representing the professional interests of more than 185,000 dental hygienists across the country.

  6. Dental hygienist - Wikipedia

    en.wikipedia.org/wiki/Dental_hygienist

    A dental hygienist or oral hygienist is a licensed dental professional, registered with a dental association or regulatory body within their country of practice. Prior to completing clinical and written board examinations, registered dental hygienists must have either an associate's or bachelor's degree in dental hygiene from an accredited college or university.

  7. Occupational hygiene - Wikipedia

    en.wikipedia.org/wiki/Occupational_hygiene

    Illustration of Exposure Risk Assessment and Management related to anticipation, recognition, evaluation, control, and confirmation. Occupational hygiene or industrial hygiene (IH) is the anticipation, recognition, evaluation, control, and confirmation (ARECC) of protection from risks associated with exposures to hazards in, or arising from, the workplace that may result in injury, illness ...

  8. Permissible exposure limit - Wikipedia

    en.wikipedia.org/wiki/Permissible_exposure_limit

    Like OSHA, Mine Safety and Health Administration (MSHA) also uses the same 5 decibel exchange rate and 90 dBA for an 8-hour TWA for their PEL. Once a miner's noise exposure exceeds the PEL, feasible engineering AND administrative controls must be in place to try to limit the noise exposure of the employees.

  9. Laffey Matrix - Wikipedia

    en.wikipedia.org/wiki/Laffey_Matrix

    For many years, the United States Attorney's Office used the Laffey Matrix ("USAO Laffey Matrix") as a basis for hourly rates for attorneys' fees in litigation claims. This matrix used the original Laffey Matrix from 1982 and adjusted it annually using changes in the Bureau of Labor Statistics Consumer Price Index for all Urban Consumers for the Washington-Baltimore area.