air pollution caused by cigarettes What You Need to Know about Secondhand Tobacco Smoke 4.5 trillion cigarette butts are

Too much weight should not be put on such statistics, in part due to the small numbers involved, but smoking rates amongst children did not change much over the course of the next 30 years, suggesting that some groups of children were largely impervious to anti-smoking messages

It can also be a flavoring agent and preservative

He was in the same company on tour and he never came to our flat. Gillian did not pursue Smithy and Evelyn into the seclusion of their matrimonial relationships

Cue some jokes connecting the theory to this detail, and claiming that the Pale King also hates Lifeblood-filled syringes by extension, hence "anti-vaxxer"