In New York City before the advent of the internal comubction enging and the automobile, two major sources of air pollution were fly ask from wood and coal fires and airbourne dust from horse manure. It was dropped in the street, run over by other vehicles and pulverized to become airbourne at the slightest puff of air.

It got into enervthing and on everything. There were livery stables on every block and the disposal of the stable sweepings was a major problem.

It was the same with most cities. If you want to use a horse, don't plan to do it in town or your neighbors might think harshly of you.

I think the real solution is to make suburbia illegal. You either live on and work a farm, or you live in town. And never the twain shall meet.

troll