No, and I was never in London when coal smoke brought a killing fog. Your point?
I know the smog alert days in Atlanta burn my eyes and make me get winded faster. Even though Mexico City and Bangkok -- and I've been in both on high-smog days -- are worse, that doesn't strike me as especially relevant.
I don't understand your hostility to common-sense measures that would not hurt our productivity or competitiveness, and would probably enhance both. You might want to ask your doctor if there's a way to stop that knee from jerking.
You don’t seem to understand the law of diminishing returns.