That is the disgustingly large number of cigarette butts beach cleanup volunteers have collected over the past 25 years during the International Coastal Cleanup, an annual event sponsored by the Ocean Conservancy
And it notes that e-cigarette use has been shown to increase heart rate, blood pressure and platelet activation, and decrease flow-mediated dilation and heart rate variability, effects that suggest long-term cardiovascular risk
Its just that the taxes may not decrease consumption among girls as much as you might hope or think
"The benefits of Swedens strategy are enormous," said Dr Human
What they are is *relatively* harmless compared to lit tobacco, which is not only a perfectly valid piece of objective assessment based on the evidence we have, and the materials science we know extremely well (although in a slightly backhanded way e-cigarette use long term might be like losing the tips of all your fingers, whereas smoking is like being run over a series of articulated lorries, that are on fire, such is the massive harm smoking does) but that relative harm *is* the actual important point