[0.17.25] Pollution not dissipating

[Haighstrom]

I'm in the latest release and my entire base is powered down (0 production, 0 satisfaction). However full pollution is still being created. Is this a known issue?

[robot256]

Can you post a screenshot of your base and your pollution statistics graph (set to 1 minute interval, for example)? Pollution will never completely dissipate when the chunk is completely covered in concrete, even if there is no production.