What's in dispute is the number of deaths caused by ETS. It started out with 3,000, then jumped to 50,000, and then hit it's nadir of 340,000 that all the anti-smoking campaigners claim as a set in stone figure even though it is an estimate that has nothing to do with actual numbers.
Once again, and probably not for the last time, actual studies of ETS run about 80% against there being any statistical harm done by ETS to an otherwise normal healthy human being.
What are you talking about? Where does the 340,000 figure come from? Also, using fancy-sounding words incorrectly just makes you look like a fool. Your use of the word "nadir" is opposite to its corrent meaning.
Best,
Alter