I was reading Cecil’s recent column on what happens to the rubber that wears off tires. Apparently a lot of it winds up in our lungs! :eek:
Would it be possible to clean up particulate air pollution of this kind by erecting giant outdoor versions of the indoor air cleaners some of us have? (Of course that wouldn’t help any with gaseous pollution such as CO2, only particles.) Would that require too many such filters, and use too much power, to be practical?
If it were possible – what would be the environmental effect of filtering all that pollen out of the air together with the man-made pollutants? (I can think of no way to filter the one but not the other.)