Environmental Tobacco / Cannabis Smoke
Multi-marker monitoring for second-hand smoke transfer in multi-unit dwellings and hospitality settings.

What we look for
Nicotine and 3-ethenylpyridine (3-EP) for tobacco; cannabinoid markers for cannabis. Particulate (PM2.5) and TVOCs round out the picture.
- Nicotine + 3-EP via XAD-4 sorbent
- PM2.5 by gravimetric or real-time monitor
- Cannabinoid residues by GC-MS