Human Auditory Response to Low-Level Aircraft Flyover Noise: Raw Data.
Abstract
Changes in human hearing from exposure to low-flying aircraft noise representative of military training routes were measured during a laboratory study. In Phase 1, subjects were exposed to single flyover noise at levels of 115, 120, 125, and 130 dB(A). In Phase 2, subjecis were exposed to eight successive repetitions of a single flyover noise at a level of 125 dB(A) in one session and at a level of 130 dB(A) in a second session. Hearing threshold levels were measured immediately prior to and following each noise exposure. Some subjects experienced small decreases and others small increases in hearing sensitivity following the exposures. The temporary decreases in hearing sensitivity (temporary hearing losses) had disappeared in all subjects by the end of the test session in which they occurred. Overall, the data suggest that within the definitions of the laboratory study, which used worst-case noise expo sures relative to real-world exposures, the probability of noise induced hearing loss from low-flying aircraft noise in exposed populations is very small. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1994
- Accession Number
- ADA298507
Entities
People
- Denise M. West
- Nancy K. Green
Organizations
- Armstrong Laboratory