{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T13:43:59Z","timestamp":1769607839749,"version":"3.49.0"},"reference-count":0,"publisher":"Acoustical Society of America (ASA)","issue":"1","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[1978,7,1]]},"abstract":"<jats:p>The noise-induced permanent threshold shift (NIPTS) resulting form up to ten years of exposure to an average A-weighted sound level Leq of 89 dB was investigated. Prior occupational noise exposure was controlled for by eliminating subjects with previous high-noise-level jobs or uncertain exposure histories. The final population consisted of 42 males and 58 females working in steady-state broadband noise environments. No attempt was made to screen subjects for any auditory pathology. A 222-subject control group from the same geographic area as the exposed subjects was selected such that none of its constituents had any effective industrial noise exposure. Presumed NIPTS was calculated by correcting each individual audiogram of the exposed subjects according to the aging curves developed from the control popultion hearing levels. The results indicated a considerable male\u2013female difference in NIPTS, even though both groups were exposed to the same Leq. Averaging the results for all 100 subjects, in order to make comparisons to other available data, yielded results in close agreement to predictions based upon the work of Burns and Robinson, Baughn, NIOSH, and Passchier\u2013Vermeer, indicating that 10 years of exposure to a daily Leq of 89 dB causes measurable hearing loss at 4 kHz.<\/jats:p>","DOI":"10.1121\/1.381984","type":"journal-article","created":{"date-parts":[[2005,10,3]],"date-time":"2005-10-03T23:00:40Z","timestamp":1128380440000},"page":"192-197","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":18,"title":["Presumed noise-induced permanent threshold shift resulting from exposure to an <i>A<\/i>-weighted <i>L<\/i>eq of 89 dB"],"prefix":"10.1121","volume":"64","author":[{"given":"E. H.","family":"Berger","sequence":"first","affiliation":[{"name":"E-A-R Corporation, Indianapolis, Indiana 46268"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"L. H.","family":"Royster","sequence":"additional","affiliation":[{"name":"Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina 27607"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W. G.","family":"Thomas","sequence":"additional","affiliation":[{"name":"Hearing and Speech Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27514"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"231","container-title":["The Journal of the Acoustical Society of America"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.aip.org\/asa\/jasa\/article-pdf\/64\/1\/192\/12113550\/192_1_online.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/pubs.aip.org\/asa\/jasa\/article-pdf\/64\/1\/192\/12113550\/192_1_online.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,7,25]],"date-time":"2023-07-25T03:06:41Z","timestamp":1690254401000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.aip.org\/jasa\/article\/64\/1\/192\/771765\/Presumed-noise-induced-permanent-threshold-shift"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1978,7,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1978,7,1]]}},"URL":"https:\/\/doi.org\/10.1121\/1.381984","relation":{},"ISSN":["0001-4966","1520-8524"],"issn-type":[{"value":"0001-4966","type":"print"},{"value":"1520-8524","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[1978,7]]},"published":{"date-parts":[[1978,7,1]]}}}