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SN Appl Sci

Title:		Evaluation of nano-confined catalytic oxidation air purification technology on eliminating marijuana chemicals and odour
Author(s):		Kwok A; Hong C; Kwok E;
Address:		"Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC Canada. GRID: grid.17091.3e. ISNI: 0000 0001 2288 9830"
Journal Title:		SN Appl Sci
Year:		2021
Volume:		20210927
Issue:		10
Page Number:		808 -
DOI:		10.1007/s42452-021-04783-2
ISSN/ISBN:		2523-3971 (Electronic) 2523-3963 (Print) 2523-3963 (Linking)
Abstract:		"The novel air purification technology, Nano-Confined Catalytic Oxidation (NCCO), has been proven to be effective at eliminating air pollutants. With the increasing legalization and decriminalization of medicinal and recreational cannabis and related products, respectively, in many countries and jurisdictions around the world, concerns have been raised about indoor air quality from smoking cannabis products, such as marijuana, which produce gaseous pollutants and intense odour. In this study, NCCO technology has been evaluated for its effectiveness in reducing key marijuana concentrations in polluted indoor air by direct measurements and odour intensity assessments by human volunteers. For the odour intensity measurements, 20 non-cannabis adults participated in the odour assessment. The results are remarkable and statistically significant. The reduction in Dronabinol, a pharmaceutical form of Tetrahydrocannabinol (THC), Cannabidiol (CBD) and Cannabinol, averages 93.4%, whereas that in airborne marijuana compounds with no air purification only averages 6.2%. The technology also demonstrates statistically significant reductions in PM2.5, PM10 and total volatile organic compounds generated from marijuana smoke. The technology was able to restore high levels of harmful particulate matter to normal baseline levels. Furthermore, the odour assessment conducted by a group of 20 volunteers also confirmed statistically significant reductions in marijuana odour by 55.6% after 50 min of air purification"
Keywords:		Air pollution Cannabis Catalytic oxidation Indoor air quality Zeolites;
Notes:		"PubMed-not-MEDLINEKwok, Abiel Hong, Christopher Kwok, Ezra eng Switzerland 2021/10/05 SN Appl Sci. 2021; 3(10):808. doi: 10.1007/s42452-021-04783-2. Epub 2021 Sep 27"