Increasing amounts of research show that hazardous smoke residues can be absorbed through the skin, ingested, and inhaled months and even years after smoke has dissipated.
The latest study, published Wednesday in the journal Science Advances, shows how tobacco smoke from outdoor air can seep into a nonsmoking classroom and coat its surfaces, and how those hazardous chemicals often become airborne again and circulate throughout buildings via central air-conditioning systems.
From The Washington Post : Thirdhand smoke is widespread and may be dangerous, mounting evidence shows
(Score: 3, Touché) by Anonymous Coward on Thursday May 10 2018, @08:00PM
Nothing is ever cheap, simple, and quick and typically requires a regulated industry like asbestos remediation or mold removal. You know, where the tent the entire building with hermetically sealed space plastic and go in with respirators and hazmat suits and charge $4k/hour to swab ever square cm.