3 cigarettes a day bad Everyone is smoker today (if you go outside). With an AQI reading over 300, spending the next 24 hours outside would be the equivalent of smoking at least 16 cigarettes. A Busting 8 Common Myths About
Description
Ten of the PAHs on the FDA list are being considered by the WHO for addition to its list of regulated chemicals from tobacco smoke

The outcome of that race is still in dispute as of this publication

[Google Scholar] 10.Health effects of passive smoking

PMID 26408554

E-juice, also called e-liquid, is the primary material used in vaporizers, and consists of a PG (propylene glycol) and VG (vegetable glycerin) base, flavorings, and may or may not contain nicotine

Thirty years ago, nearly half of all British children between the ages of eleven and fifteen had tried tobacco