76561197969631737: Created with prevention, causes, and toxic areas

2026-10-04T14:32:47Z

Created with prevention, causes, and toxic areas

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[[Pollution]] is caused by many [[Buildings]] when they are working. Pollution hurts [[Kewa]] and makes them unhappy, and it makes [[Peeps]] unhappy and [[Sickness|sick]].

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{{Guide
| Pollution is an unfortunate side effect of industry.
}}

== Prevention ==

[[Forests]] are settlements' first line of defense against pollution, because they slowly reduce pollution near them. Placing early polluters like the [[Burner Generator]] among several forests can prevent pollution from accumulating or at least give the [[Peeps]] more time to build their first [[Cleaner]]. Before settlements can obtain [[Saplings]] for [[Terraforming]] and place [[Power Lines]], placement of early industry buildings can make the difference between comfortable and hectic pollution management.

For areas without Forests, [[Cleaners]] supplied with [[Soot]] are settlements' next line of defense against pollution. It will require a continuous supply of soot, conveniently supplied by the early [[Burner Generator]]s and [[Ore Smelter]]s, and it may take cycling the buildings' tasks off, pausing them temporarily, and two or three Cleaners.

You can use the ''Pollution Existing'' and ''Pollution Rate'' overlays to see (a) sufficient forests will frequently repaint ''Low/Medium Pollution'' with ''Not Polluted Yet.''

<gallery mode=packed heights="213px">
File:Forests sufficiently reducing pollution.png|A developed industrial area situated among planted Forests.
File:Forests sufficiently reducing pollution overlay pollution existing.png|The same area showing overlay indicating no pollution.
File:Forests sufficiently reducing pollution overlay pollution rate.png|The same area with overlay showing that Forests are keeping up with pollution.
</gallery>

== Causes ==

[[Buildings]] that extract, refine, and produce [[Resources]] using other resources pollute. [[:Category:Construction buildings|Construction buildings]] and [[:Category:Power buildings|Power buildings]] are especially bad polluters.

There are 22 buildings that pollute:

{|class="wikitable sortable"
! Building !! Category !! Pollution level
|-
| [[Electronics Plant]] || [[:Category:Advanced Buildings|Advanced]] ||data-sort-value="30"| High
|-
| [[Laser Laboratory]] || [[:Category:Advanced Buildings|Advanced]] ||data-sort-value="30"| High
|-
| [[Research Laboratory]] || [[:Category:Advanced Buildings|Advanced]] ||data-sort-value="30"| High
|-
| [[Battery Plant]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="40"| Very high
|-
| [[Blast Mine]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="10"| Low
|-
| [[Cement Factory]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="40"| Very high
|-
| [[Metal Smelter]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="30"| High
|-
| [[Mine]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="10"| Low
|-
| [[Ore Smelter]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="20"| Medium
|-
| [[Sawmill]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="10"| Low
|-
| [[Toolsmith]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="10"| Low
|-
| [[Trawler]] || [[:Category:Construction Buildings|Construction]] ||data-sort-value="20"| Medium
|-
| [[Chemical Factory]] || [[:Category:Hazardous Buildings|Hazardous]] ||data-sort-value="20"| Medium
|-
| [[Fuel Maker]] || [[:Category:Hazardous Buildings|Hazardous]] ||data-sort-value="40"| Very high
|-
| [[Sludge Dehydrator]] || [[:Category:Hazardous Buildings|Hazardous]] ||data-sort-value="30"| High
|-
| [[Drink Factory]] || [[:Category:PeepResources Buildings|PeepResources]] ||data-sort-value="30"| High
|-
| [[Kitchen]] || [[:Category:PeepResources Buildings|PeepResources]] ||data-sort-value="30"| High
|-
| [[Tailor]] || [[:Category:PeepResources Buildings|PeepResources]] ||data-sort-value="30"| High
|-
| [[Weaver]] || [[:Category:PeepResources Buildings|PeepResources]] ||data-sort-value="10"| Low
|-
| [[Fuel Generator]] || [[:Category:Power Buildings|Power]] ||data-sort-value="30"| High
|-
| [[Burner Generator]] || [[:Category:Power Buildings|Power]] ||data-sort-value="20"| Medium
|}

<gallery mode=packed heights="256px">
File:Polluted industrial area.png|An industrial area's ground has become discolored with heavy pollution.
File:Polluted industrial area overlay.png|The same area with the ''Pollution'' overlay, showing very heavy pollution levels.
</gallery>

=== Toxic areas ===

When tiles have become highly polluted or very highly polluted for 15 minutes, the tiles change from '''[Very] Highly Polluted''' to '''Toxic Area.''' Once an area has become toxic, Peeps will not walk across the tiles, including to visit workplaces within it. These workplaces shut down.

Toxic areas can be cleaned with the [[Toxic Tile Scraper]]. Once your settlement starts producing [[Chemicals]], the [[Cleaner]] can also be used to clean toxic areas. The scraper is a temporary workplace. Peeps working to clean toxic areas will step onto toxic tiles, but will become unhappy and likely get [[Sickness|sick]].

<gallery mode=packed heights="256px">
File:Polluted industrial area toxic.png|The same area as above has become toxic.
</gallery>

{{See also
| Biome
| Kewa
}}

[[Category: Biome]]
[[Category: Buildings]]

Pollution - Revision history

76561197969631737: Created with prevention, causes, and toxic areas