THE HANDICAP RESULTING FROM NOISE-INDUCED HEARING LOSS Communication Self-Esteem Interaction with Environment Intimate Relationships
1995 Construction Employment Data and NIOSH Estimates ( ) of Numbers Exposed at or above 85 dBA
Average noise exposure levels (daily L eq ) by type of construction. (Adapted from Sinclair and Haflidson, 1995)
Average Daily Noise Exposure Levels (8-hour L eq ) of Heavy Equipment Operators and Associated Laborers in dBA
COMBINED EXPOSURES NOISE AND OTHER AGENTS Lead u u Vibration u u Carbon Monoxide u u Chemicals u u Solvents Toluene Xylene
Estimated Numbers of Workers Exposed at or above 85 dBA and Percent using HPDs. (NIOSH percentage estimates ( ) using 1995 Construction Employment Data.)
HEARING PROTECTOR USE AMONG CONSTRUCTION WORKERS
HEARING PROTECTORS PRACTICAL CONSIDERATIONS
AUDIOMETRIC TESTING
ACCIDENTS IN CONSTRUCTION
BACK-UP ALARMS
Diesel-powered rotary drills………... Electrically driven rotary drills……... Machine-Mounted percussion…….. drills (surface) Crawler tractors……………………... Electric shovels and draglines…….. Diesel-powered draglines, cranes… shovels, and hydraulic excavators Haulage trucks……………………… Scrapers……………………………... Front-end loaders…………………... Graders………………………………. Coal augers…………………………. QuietedUnquieted |||||||||||||||||||||||| |||||||||||||||||||||||| Typical worker exposure, dBa SURFACE MINING EQUIPMENT INDEX