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Air sampling is used to measure an individual’s exposure to a harmful substance in the air such as dusts and vapours, which is then compared to an exposure limit. Personal air sampling pumps are used with sampling accessories and media (filters and tubes) to collect the substance, which can then be sent to a laboratory for analysis. This will then give an 8-hour exposure value. Real time dust monitors are also available to give instantaneous dust levels, which will show when exposure occurred and a dust level in real time.
Noise monitoring instruments comprise of sound level meters and noise dosimeters used for workplace noise control or environmental noise monitoring. Sound level meters range from simple devices for items such as fire alarm testing up to more comprehensive units to measure occupational or environmental noise. Personal noise dosimeters are bodily worn, ideal for measuring mobile workers with complex shift patterns.
Boundary monitors are used at the fence line, such as in construction and demolition, to monitor emissions from the construction or manufacturing site. In order to prevent nuisance or environmental harm, sites may have limits for noise, dust (e.g. PM10 or PM2.5) and vibration (PPV) levels. Fixed monitors can aid in managing environmental factors by alerting users, via text and email, when prescribed limits are exceeded.
New to workplace noise? This online course covers hearing physiology, noise terminology and calculation of exposure.