{"id":4169,"date":"2024-10-17T15:34:53","date_gmt":"2024-10-17T04:34:53","guid":{"rendered":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/cannabis-and-indoor-air-quality-unveiling-the-invisible-threat\/"},"modified":"2025-11-12T21:01:57","modified_gmt":"2025-11-12T10:01:57","slug":"cannabis-and-indoor-air-quality-unveiling-the-invisible-threat","status":"publish","type":"post","link":"https:\/\/www.dalgarnoinstitute.org.au\/wp_site\/cannabis-and-indoor-air-quality-unveiling-the-invisible-threat\/","title":{"rendered":"Cannabis and Indoor Air Quality: Unveiling the Invisible Threat"},"content":{"rendered":"

\"oil\"As cannabis legalisation expands across the United States, understanding the impact of cannabis smoke on indoor air quality has become increasingly important. A recent study published in Atmospheric Environment: X<\/em> delves into the concentrations of fine particles (PM2.5), emission rates, and decay rates resulting from cannabis use in a residential setting. This study provides critical insights into how different methods of cannabis consumption compare to traditional tobacco cigarettes in terms of indoor air pollution.<\/p>\n

Study Methodology<\/strong>: The study involved 60 controlled experiments conducted in a 43 m\u00b3 room. Researchers measured PM2.5 concentrations using real-time monitors specifically designed for this purpose. The experiments focused on four methods of cannabis consumption: pre-rolled marijuana joints, bongs, glass pipes, and electronic vaping pens. For comparative purposes, emissions from Marlboro cigarettes were also measured. An experienced smoker followed a standardised puffing protocol across all experiments to ensure consistency.<\/p>\n

Key Findings<\/strong>: The findings revealed significant differences in PM2.5 emission rates among the various cannabis consumption methods and compared to tobacco smoke:<\/p>\n