Despite its accepted and widespread use, smoking or vaping marijuana creates a lingering odour that many find unpleasant. Cannabis smoke contains numerous chemicals that contribute to its characteristic aroma, primarily a group of plant-based molecules called terpenes. These terpenes are responsible for the distinctive smell of cannabis, and understanding their Odour Threshold (OT) is key in determining how much of a terpene creates a detectable smell.
The Odour Threshold (OT) is a scientific measure used to estimate how “smelly” a chemical is. It represents the concentration of a chemical that 50% of a panel of trained experts can detect. OT values for different terpenes vary widely in scientific literature, from as low as 1 part per billion (ppb) to nearly 700 ppb. Based on studies, we estimate a median OT value for cannabis-related terpenes at around 20 ppb.
How LCS Laboratory Measures Cannabis Odor
At LCS Laboratory, we take a professional approach to cannabis odour testing. Our process involves:
- Sampling Supplies: We will ship you professional-grade passive samplers developed to collect organic vapours.
- S
ampling Collection: Using passive samplers, you collect organic vapours (odours) from the air where you believe odour is present specifically on the terpene fraction that gives marijuana its distinctive smell. Over approximately one week, our passive sampler gradually absorbs terpenes from the air. - Return Shipping: You return the samplers with all the odours trapped inside to our laboratory in London, Ontario, Canada
- Laboratory Analysis: We analyze the concentration of 12 fingerprint terpenes commonly associated with cannabis odour using advanced Gas Chromatography techniques. Our cannabis odour testing method is based on the standard NIOSH 1552 protocol, which we’ve enhanced to include additional terpenes typically found in cannabis plants.
- Formal Report: We send a formal Laboratory Report where we list 13 different terpenes detected in the air of your place: alfa-Pinen, beta-Pinen, delta-Carene, alfa-Terpinene, Limonene, gamma -Terpinene, Linalool, Geraniol, alfa-Terpineol, beta-Caryophyllene, Humulene, Valencene, Nerolidol.
Why Choose LCS Laboratory for Cannabis Odor Testing?
- Expertise in Air Quality Testing: We are a professional air quality laboratory, experienced in working with consultants and the manufacturing industry.
- Enhanced Cannabis Terpene Analysis: Our method, derived from the NIOSH 1552 standard, includes specific terpenes known for their strong presence in cannabis odour.
- Comprehensive Service: We offer a complete package including sampling devices, shipping, laboratory analysis, and a certified report.
If you’re dealing with cannabis smell issues in your neighbourhood or facility, our sampling kit allows you to collect your own air samples. Simply return the samples to us, and we’ll provide a formal report detailing the concentrations of cannabis-related terpenes in your environment.
Have questions about cannabis odour testing or want to learn more? Contact LCS Laboratory to discuss how our terpene analysis can help you understand and address unwanted odours in your area.
