Accession Number:

AD0646775

Title:

THE RELATIONS OF HEARING LOSS TO NOISE EXPOSURE

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Report Date:

1954-01-01

Pagination or Media Count:

64.0

Abstract:

Contents Definition of Variables hearing loss, noise, exposure The Human Problems of Industrial Noise Presbycusis Requirements for Field Data Continuous Exposure to Steady Noise The Relation of Hearing Loss at Certain Frequencies to Octave Band Levels Average Net Hearing Loss Contours Trend Curves Estimates of Average Net Hearing Loss Confirmation of the Trend Curves Limitations of Trend Curves Spectra and Extrapolations Limitations of Trend Curves Intermittent Exposure and Non-Steady Noise Limitations of Trend Curves Temporary Threshold Shift Reduction in Temporary Threshold Shift after Cessation of Exposure Exposure to Low-Frequency Noise Gross Hearing Losses in Three Hypothetical Groups Intermittent Exposure to Steady Noise Airplane Noise Jet-Engine Noise Intermittent Exposure Riveting Noise Impulsive Noise Proof-firing Impact Noise Drop Forge Relation of Threshold Shifts to Initial Audiograms.

Subject Categories:

  • Environmental Health and Safety

Distribution Statement:

APPROVED FOR PUBLIC RELEASE