Not all inhalable drugs are the same. Also, not all inhalations are the same.
Your idea could hold for people who smoke cigarettes or use combustion-heated pipes to consume hard drugs like meth or crack, or for people who smoke a lot of poor quality cannabis, especially without any kind of filtering.
It probably doesn’t hold for people who use a dry herb vaporizer to consume cannabis, since the method of consumption doesn’t generate PM2.5 or combustion gases, and the volatile constituents of cannabis are well established to have local and systemic anti-inflammatory effects.
Your idea could hold for people who smoke cigarettes or use combustion-heated pipes to consume hard drugs like meth or crack, or for people who smoke a lot of poor quality cannabis, especially without any kind of filtering.
It probably doesn’t hold for people who use a dry herb vaporizer to consume cannabis, since the method of consumption doesn’t generate PM2.5 or combustion gases, and the volatile constituents of cannabis are well established to have local and systemic anti-inflammatory effects.