> car repair, machine shops, furniture making

None of which is really unbearable to live somewhat near to (unlike heavy industrial, they do shut down at night), but they're often pretty locally polluting. Brake dust, metal shavings, wood finishes with VOC's, paints, and then all sorts of chemicals used as solvents for cleaning, rust removers, etc.

I actually like to be able to walk home after dropping off the car for inspection at the shop. Those pollutants should be pretty contained, we're not in the 70es any more?

If there are enough solvents in use to be detectable off–site, then the industry is in the wrong zone.

What about those examples generates brake dust more than any other business? Mechanics replacing brakes doesn't generate new brake dust.

How does it bother the outside world if there's metal shavings in a machine shop? They save and recycle those for - they aren't just dumping them in the street.

Mechanics replacing brakes clean up areas with lots of it.

A lot, but my critique is of the map itself, not of the zoning.

Ah. I agree that the map is not amazing :). Color choices could be better too.

Fun challenge: find the non-SFZ residential on that map. You're not allowed to use the eyedropper tool.