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Document ID (ISN)62553
CIS number 94-1390
ISSN - Serial title 0019-8366 - Industrial Health
Year 1993
Convention or series no.
Author(s) Mirbod S.M., Tambara K., Fujita S., Yoshida H., Nagata C., Komura Y., Inaba R., Iwata H.
Title Survey on noise exposure level in an aluminium can manufacturing plant
Bibliographic information 1993, Vol.31, No.1, p.1-12. Illus. 19 ref.
Abstract This study was designed to quantify noise exposure of labourers at various sections of an aluminium can production plant: cupping press, drawing press, printing, inside spray coating, control room. The spectral analysis of noise indicated that high levels of noise associated with high frequency noise exceeded the permissible limit against hearing damage (85dB(A)), and it generally amounted to levels higher than 90dB(A), whereas noise levels inside the control rooms were in the range of 54-60.5dB(A). The A-weighted equivalent continuous noise exposure levels (dB(A)) during an 8h shift were mostly higher than the prescribed limit. By preliminary audiometric examinations on the right ears of workers hearing threshold shifts were noticed in the range of 7-11dB at 1kHz and 12-16dB at 4kHz. The speech interference levels for workers at different section were between 93.2 and 96.5dB(A) and higher than the maximum vocal efforts.
Descriptors (primary) Japan; metalworking industry; cans; noise level
Descriptors (secondary) exposure evaluation; noise dosimetry; occupational health survey
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Metal production and metalworking
Broad subject area(s) Physical hazards
Browse category(ies) Metalworking industry