Our Guide to Accurate Particulate Matter Measurements with Air Sensors discusses how to obtain accurate PM measurements according to EPA, EU, and other performance standards
This, and the fact that the included studies were checked for relevance and methodological rigour, can be considered strengths of this systematic review
And if you want to completely avoid nicotine, herbal blends like Greengo or individual herbs like chamomile, damiana, or mullein are excellent alternatives
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Please feel free to give the leaf a little rub of your own, if only to get a feel for it and to enhance the already exciting scents
It caused lung cancer, among other things, and lung cancer was and is the leading cause of cancer death in the United States