500 aqi is equivalent to cigarettes PM2.5 [Pollution Calculator] How many cigarettes you're indirectly

It didnt make you smell bad

From driving smokers back to cigarettes and fueling black market activity to reducing tax revenue and complicating public health efforts, the impacts of such a ban could be far-reaching

In their analyses, researchers looked at the rates of high blood pressure, heart attack, stroke, coronary artery disease, diabetes and depression/anxiety among those who reported using e-cigarettes (either some days or daily) and nonusers

While some commentators have suggested that they have had a significant effect on sales at the British "big four" Tesco, Asda, Sainsbury's and Morrisons in fact their impact so far has been small, with a market share of 4.6 per cent from their 500 stores