Some safety and health changes are designed to improve the physical work environment. Two examples are noise baffles around loud equipment and extra ventilation to remove contaminants. Environmental measures can help determine whether these changes are effective. Environmental measures include air sampling and noise monitoring. This type of data gathering may require people with special equipment and training, but the data they can collect may help pinpoint the value of the change.

For more information about environmental measures, click on:
http://www.iwh.on.ca/archive/pdfs/eval_gde.pdf. Once there, go to page 62.