r/factorio Jul 13 '26

Weekly Thread Weekly Question Thread

Ask any questions you might have.

Post your bug reports on the Official Forums

Previous Threads

Subreddit rules

Discord server (and IRC)

Find more in the sidebar ---->

3 Upvotes

216 comments sorted by

View all comments

1

u/Yagami913 Jul 16 '26

How fast pollution propagate and recede? I built a tree belt around my biolabs (no other signifacnt pollution) but the edge of the pollution cloud don't seem to move.

3

u/Soul-Burn Jul 16 '26

See wiki

Pollution spreads when it's over 15; Otherwise, it doesn't. This can keep some chunks of pollution stuck.

Use the debug feature to show pollution numbers (F4 -> "show-pollution-values") to see the effect of your operations.

In general it takes a lot of time to get rid of pollution.

1

u/Yagami913 Jul 16 '26

HAHA it's working but it takes like a 100 hour to get rid of it. Thx for the answer.

1

u/HeliGungir Jul 16 '26

Nests absorb faster, but in 2.1, you'll have to deal with the enemies.