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You basically 'smoked' 150 cigarettes in Montreal last year without even knowing it Montreal had the worst pollution exposure in Canada, according to a new study

Even if you are a careful smoker, smoking inside a building will lead to damage including: Yellow and brown stains on surfaces and walls (image source: reddit) Nicotine and tar from cigarette smoke leaves brown/yellow stains on surfaces and wallpaper

US Department of Health and Human Services, The health consequences of smoking - 50 years of progress: A report of the Surgeon General

Let that one sink in for a minute

One paper from 2019 found that about 36 percent of smokers in Canada which started using the warnings two decades earlier found them 'not at all' or 'minimally' effective in prompting them to quit