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When we modeled indoor concentrations of acrolein that could be found in a home with regular heat-not-burn use and in spaces with multiple users, such as bars, we found that in certain conditions levels could exceed what the state of California considers to be a safe level for chronic exposure, said co-author and chemist Lara Gundel

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Its the combustion thats the problem, so this idea that because cannabis is natural burning and inhaling it is fine is just wrong. While many longitudinal studies on the health impact of inhaling marijuana are still under way, there are plenty of toxins and tar in cannabis smoke that can hurt the lungs, said Carol Boyd, founding director of the Center for the Study of Drugs, Alcohol, Smoking and Health at the University of Michigan in Ann Arbor

I really didn't know that was a thing?" the person wrote on the Reddit thread r/delta