NIOSH Health Hazard Evaluation Report: HEAT-2007-0235-3064, Anchorage Fir Department, Anchorage, Alaska, June 2008. Evaluation of Potential Noise Hazards to Mechanics and 911 Dispatchers at a Fire Department

摘要

On April 24, 2007, NIOSH received an HHE request from AFD management to assess whether the fire departments mechanics should be enrolled in an HCP, and to determine if feedback noise (or 'squeal') that the 911 dispatchers heard through their headsets was hazardous to their hearing. A NIOSH investigator visited the site to collect full-shift noise exposures on the mechanics, to interview the 911 dispatchers about their work environment, to measure noise levels in the dispatch area, and to review employee records pertinent to noise and hearing loss. NIOSH investigators also purchased headsets similar in manufacturer and model to those worn by AFD dispatchers for laboratory analysis in-house, and tested actual feedback noise recordings provided by the AFD.