COSHH Risk Assessment Step 5: Monitor exposure

Monitoring exposure

If the control measures aren't working, this could be a serious health risk. Measure the amount of hazardous substances in the air that has been breathed in so that you can make sure the WEL exposure limits haven't been exceeded.

You must do this unless you have another system for checking exposure, such as an automatic alarm.

Keep records of the exposure monitoring for 5 years. Keep any records specifically relating to individuals for 40 years.

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