1. If a motor generates a sound pressure of 4.3 Pa, calculate
the sound pressure level in decibels.
2. A worker is exposed to noise levels of 80 dBA for 60 minutes,
84 dBA for 120 minutes and a background level of 70 dBA for the
remainder of their 8 hour shift. Calculate their 8 hour noise
exposure.
3. Define the term ‘primary aerosol’. List three examples of a
primary aerosol.
1. If a motor generates a sound pressure of 4.3 Pa, calculate the sound pressure level in decibels. 2. A worker is expos
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1. If a motor generates a sound pressure of 4.3 Pa, calculate the sound pressure level in decibels. 2. A worker is expos
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