Smog

Smog is a type of Air Pollution. So unlike Ground Pollution produced by Tailings you can not contain/hide it.

Smog must be vented from work tables that have a pipe tab when accessing it, in order for the table to operate properly. However, they will hold X amount of smog before it will stop and require venting.

Venting can be done with Copper Pipe,Iron Pipe and Steel Pipe.

If you stop use of the smog producing work tables the area around the exhaust port will return to its normal self and pollution will reduce to zero. At this time, it is unconfirmed if you can break the environment with to much smog and prevent regrowth.

Known Smog Producing Tables

Stove
Oil Refinery
Factory
Cement Kiln
Blast Furnace