
In Factorio, pollution is represented as a red cloud that is visible on the map when the pollution setting is turned on. Players can view the pollution cloud on the minimap by enabling the Show pollution on the minimap when detailed info is on option in the graphics settings. Additionally, pressing the Alt key in-game toggles detailed information, including pollution. The M key opens the map, which also has a red button to toggle the pollution overlay. While the pollution overlay used to be available on the minimap, it appears that recent updates have removed this feature, leaving it only on the main map. Players can also view pollution values for each chunk on the map by enabling the show-pollution-values option.
| Characteristics | Values |
|---|---|
| View pollution on the mini map | Press M, then Alt |
| View pollution on the map | Open the map (M), then toggle the red button to activate the pollution overlay |
| View pollution numbers | F5 |
| Pollution cloud | Appears as a blocky red cloud |
| Pollution spread | Spreads in all four cardinal directions at a rate of 2% per 64 ticks |
| Pollution absorption | Trees absorb pollution, as do spawners, which use it to assign enemies to attacks |
| Pollution and biters | Higher pollution values decrease the time it takes for biters to join the attack force |
| Pollution and evolution | Global pollution affects evolution, not just pollution that touches nests |
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What You'll Learn

Toggle the pollution overlay on the map
To view pollution in the mini map in Factorio, you need to ensure that the "Show pollution on the minimap when detailed info is on" setting is enabled. This can be done by going to the Options menu, opening Graphics, and turning on the third option. Once this is done, you can toggle detailed info in-game using the Alt key.
To toggle the pollution overlay on the map in Factorio, you can press 'M' to open the map and then click the red button to turn on the pollution overlay. The overlay will also be visible on the minimap.
It is worth noting that some players have reported issues with the pollution overlay not working, even with the correct settings enabled. In some cases, this may be due to mods installed that interfere with the game. Additionally, it appears that the ability to view pollution on the minimap was removed in later versions of the game, so this feature may not be available to all players.
If you are unable to view pollution on the minimap, you can try pressing 'Alt' to toggle detailed info, as this has been reported to work by some players. Alternatively, you can try enabling the "show_pollution_values" option in the F4 menu, and then pressing F5 to view the pollution numbers. You can also try searching for mods that add this feature back into the game.
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Press 'Alt' to view pollution
If you want to view pollution in Factorio, there are a few methods you can use. Firstly, you can press 'M' to open the map, where you will find a red button that allows you to toggle the pollution overlay. This overlay will also be visible on your minimap.
Another way to view pollution is by pressing the 'Alt' key. This will toggle detailed information, including pollution, on and off.
It is worth noting that the ability to view pollution on the minimap was removed in later versions of the game. This may have been due to the addition of filters to the main map, or because it was deemed unnecessary clutter on a small, unzoomable minimap.
If you are unable to view pollution on the map, it may be due to mods installed on your game or because you have disabled the pollution overlay in the game settings. You can enable the overlay by going to the options menu, opening Graphics, and ensuring that the "Show pollution on the minimap when detailed info is on" option is turned on.
Additionally, you can view the numerical values of pollution for each chunk by enabling the "show-pollution-values" option. This will allow you to see the specific pollution levels and make decisions based on those values.
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Enable 'show_pollution_values' in the F4 menu
To view pollution levels in Factorio, players can access the debug menu by pressing F4. This will display the pollution values in each chunk of the map. By zooming out on the map, players can observe different areas and their respective pollution numbers. To enable this feature, players need to turn on the "show_pollution_values" option in the F4 menu. This will allow players to see the amount of pollution in each chunk of the map.
The "show_pollution_values" option in the F4 menu is a helpful tool for players who want to monitor the pollution levels in their factory or base. By enabling this option, players can gain valuable insights into the impact of their actions on the environment. Additionally, this feature can help players make informed decisions about their resource usage and production processes.
Once the "show_pollution_values" option is enabled, players will see a set of numbers that represent the pollution data. The first number indicates the amount of pollution in units, while the second number represents the reduction in pollution per minute. For example, a value of "43.4/-0.15/m" indicates that the amount of pollution is 43.4 units, and the pollution is being reduced by 0.15 units per minute.
It is important to note that the pollution absorption rate can vary depending on the surface type. For instance, water absorbs pollution slower than other surfaces, while grass and trees are more effective at absorbing pollution. By understanding the absorption rates of different surfaces, players can strategically place their factories or utilize certain resources to reduce pollution levels.
By utilizing the "show_pollution_values" option in the F4 menu, players can take a more proactive approach to managing pollution in their factories. This feature encourages players to consider the environmental impact of their actions and make necessary adjustments to create a more sustainable and efficient base in Factorio.
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Turn on 'Show pollution on minimap when detailed info is on'
To turn on the "Show pollution on the minimap when detailed info is on" option in Factorio, follow these steps:
- Go to the Options Menu and open Graphics.
- Locate the "Show pollution on the minimap when detailed info is on" option. This should be the third option.
- Ensure that the option is turned on.
- During the game, you can toggle between detailed information views by using the Alt key.
- To view the map, press 'M'.
- On the map, there will be a red button that allows you to toggle the pollution overlay. This overlay will now also be visible on your minimap.
It is important to note that these steps may vary depending on the version of Factorio you are using. Some users have reported that the option to show pollution on the minimap is no longer available in newer versions of the game.
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View pollution on the mini map
To view pollution on the mini map in Factorio, you can try the following steps:
- Open the options menu and go to Graphics settings.
- Ensure that the "Show pollution on the minimap when detailed info is on" option is turned on.
- During the game, you can toggle detailed info with the Alt key.
- Open the map by pressing "M" on your keyboard.
- On the map, there should be a red button to toggle the pollution overlay. This overlay should now also be visible on your minimap.
Please note that some players have reported that this feature seems to have been removed in recent versions of the game, and it is now only available on the main map and not the mini map. If you are unable to find the option in your graphics settings, this may be why.
Additionally, you can view pollution values on the map by enabling the show_pollution_values option in the F4 menu. This will allow you to see the numerical values of pollution for each chunk on the map.
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Frequently asked questions
Go to the options menu and open Graphics. Make sure the third option, "Show pollution on the minimap when detailed info is on", is turned on. Then, in the game, you can toggle detailed info with the Alt key. You can also open the map and toggle the pollution overlay using the red button.
The minimap feature might have been removed in newer versions of the game. It is still possible to view pollution on the main map.
Press the Alt key to toggle detailed info and view the pollution cloud.
You can find an option called "show-pollution-values" in the game settings. By enabling this option, you can see the pollution level for each chunk on the map.
The pollution level indicates how badly a chunk is polluted. Higher pollution values attract biters and decrease the time it takes for them to launch an attack.





























