Formaldehyde Monitoring
Formaldehyde vapour exposure assessment in laboratories and manufacturing
What Is Formaldehyde Monitoring?
Formaldehyde monitoring measures worker exposure to this colourless, pungent gas classified as carcinogenic to humans (IARC Group 1), causing nasopharyngeal cancer and leukaemia. Formaldehyde is widely used in laboratories, mortuaries, resin manufacturing, and composite wood product processing.
The WES is 1 ppm TWA-8h with a 2 ppm STEL, and the WEL list that takes effect on 1 December 2026 keeps both values. The limits are not a safe threshold: exposure must still be eliminated or minimised so far as is reasonably practicable, which often means ventilation upgrades and process controls.
How Is It Done?
Personal sampling using DNPH-coated silica gel cartridges. Analysis by HPLC-UV (NIOSH 2016). Real-time direct-reading instruments for peak/STEL assessment.
When You Need This
- +Histology and anatomy laboratories using formalin
- +Mortuary and embalming operations
- +Resin manufacturing and composite board production
- +Checking controls against the 1 ppm TWA and 2 ppm STEL
- +Indoor air quality assessment in new buildings (off-gassing)
Relevant Standards
Common Industries
Related Monitoring
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