Burnt-out ends of smoky days.
D016902:Air Pollution, Indoor / Q000331:legislation & jurisprudence / Q000517:prevention & control*; D006801:Humans; D011634:Public Health / Q000331:legislation & jurisprudence*; D012907:Smoking / Q000331:legislation & jurisprudence*; D000074606:Smoking Prevention; D006113:United Kingdom