Third-hand smoke, the particles that cling to a smokers hair and clothing and linger in a room long after theyve left, is a cancer risk to young children (and pets)
3.1 Exposure patterns across settings Table 2 presents weighted mean exposure hours across environments and population subgroups
Nicholas Haygarth July 26th, 2026 Beautiful print, came exquisitely packaged
In our previous posts in our series on aromaticity [intro to aromaticity], [rules for aromaticity], we saw that aromatic molecules are unusually stable

Different studies have shown that cigarette smoke causes a reduction in cell viability and induction of apoptosis in respiratory hair cells20, opposite mitogenic effects or pro-apoptotic depending on the cigarette smoke concentration21 or even an impairment on epithelial regeneration upon injury.22 Animal studies have shown that chronic and intermittent exposure to cigarette smoke cause morphological alterations to the epithelium of the entire respiratory tract, from hyperplasia in lower concentrations, all the way to loss of cilia and metaplasia with keratinization in higher concentrations, and also submucosal thickening and inflammation with neutrofilic and mononuclear inflammatory cells infiltrate.23 Also, Hamm et al.24 showed that the cigarette-induced respiratory mucosa inflammatory reaction persists even after seven months of recovery