how about a landfill. ever been to one? they smell quite awful. nothing illegal about them, and they would pretty much ruin a junior high school right next door.
And they're a horrible mistake of history that was a bad idea. The planet is a closed loop system with limited resources. Our use of those limited resources should be closed loop as well.
unfortunately there is no means for that to happen right away. but of course if there weren't any landfills, we would no longer need them to be mentioned in zoning regulations.