A study published in ACS Omega has brought to light an alarming discovery concerning the potential health risks associated with the use of cannabis rolling papers. The research conducted by the team at Michigan’s Lake Superior State University involved analyzing 53 different rolling papers and cones commonly used in the cannabis industry, revealing concerning levels of heavy metals like copper, chromium, and vanadium. These metals were found to exceed safe inhalation limits in about one-quarter of the products tested, with a particular focus on copper levels surpassing safety thresholds.
The presence of elevated metal levels in cannabis rolling papers, especially those featuring colored designs or metallic tips for aesthetic purposes, is worrying due to the possible neurotoxic effects highlighted in the study. Derek Wright, the co-author of the study, emphasized the lack of regulatory oversight in this aspect, noting that while some states regulate metal content in cannabis flowers, the same regulations do not extend to rolling papers. This regulatory gap poses significant health risks, especially for individuals who use cannabis for therapeutic purposes and may already be vulnerable due to existing health conditions.
Experts and industry professionals are calling for more stringent regulations and a shift towards safer production practices in response to these findings. Analytical and atmospheric chemist Daniel Curtis highlighted the need for future studies to investigate how metals from rolling papers transfer through combustion, emphasizing the importance of identifying and mitigating sources of toxic chemicals to enhance consumer safety and product quality. Additionally, companies like RAW are taking proactive steps to develop safer alternatives, such as launching thinner rolling papers designed to reduce potential contaminants and enhance the natural flavors of cannabis, reflecting a growing industry focus on product safety and quality assurance amidst increasing cannabis usage.