Psychology 1000 Chapter Notes - Chapter 5: Engineering Controls, Heat Exhaustion, Administrative Controls

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Terry Biggs

Document Summary

Physical agents: sources of energy that may cause injury or disease. Ambient: all encompassing condition associated with a given environment, being usually a composite of inputs from sources all around us. Agent: cause of an accident/ near miss is called an agent. Any unwanted sound (differs from sound because its unwanted) Most common workplace hazard is industrial noise. Exposed to machinery that makes certain sounds. Damage usually from chronic exposure (although extreme levels at single time can do permanent damage) Threshold of hearing: envelope/ range of sound that the ear can perceive or hear. Very small difference sin numbers translate into very large actual differences. When human response is involved, unit becomes db (a) or a-weighted decibel. Human hearing response conditional on: frequency, duration: loud noise, short duration (ex: gunshot) quieter than same sound, longer, loudness. Threshold limits to noise measured in time weighted averages. Ex: amount of noise exposed to in 1 work shift of 8 hours.