We know that the photoelectrics are better at alerting people to the fires that are killing more people, says Crowley
Black mold odor comes from MCOCs (Microbial Volatile Organic Compounds), which are the off-gassing of molds as they feed and reproduce
That said, vaping is widely considered a potentially less harmful alternative to smoking
...as per the Sutliff's Private Stock tin
The core of most cigarette filters (the part that looks like white cotton) is actually a form of plastic called cellulose acetate, and we all know how long it takes for plastic to decompose
Finally, there are countries (Canada, Austria, UK, US, Netherlands, Australia) where the decline is caused by an approximately equal contribution to each side of the e 50 85 gap (Additional file 1: Figure S5)