surveillance, You should offer health surveillance for all your personnel who're in all likelihood to be regularly exposed above the higher publicity motion values, or are at hazard for any cause, eg they already suffer from listening to loss or are especially touchy to damage. Consult your exchange union
https://www.click4r.com/posts/g/8095039/liba-listening-capability-examined
https://www.b-webdesign.org/dir-wowonder/read-blog/145438
https://myanimelist.net/profile/xtxpo56r
https://archives.profsurv.com/forum/Professional-Surveyor-Magazine-Discussion/General-Surveying/-118566.aspx
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