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# Factorio Prototype Docs Version 2.0.7

## PollutionSettings :: struct

The pollution settings, the values are for 60 ticks (1 second).

## Properties

- default
- sorted

enabled | :: bool |
diffusion_ratio | :: double | Amount that is diffused to neighboring chunks.
Amount that is diffused to neighboring chunks.
min_to_diffuse | :: double | This much pollution units must be on the chunk to start diffusing.
This much pollution units must be on the chunk to start diffusing.
ageing | :: double | Constant modifier a percentage of 1; the pollution eaten by a chunks tiles. [...]
Constant modifier a percentage of 1; the pollution eaten by a chunks tiles. [...]
expected_max_per_chunk | :: double | Anything bigger than this is visualized as this value.
Anything bigger than this is visualized as this value.
min_to_show_per_chunk | :: double | Anything lower than this (but > 0) is visualized as this value.
Anything lower than this (but > 0) is visualized as this value.
min_pollution_to_damage_trees | :: double |
pollution_with_max_forest_damage | :: double |
pollution_restored_per_tree_damage | :: double |
pollution_per_tree_damage | :: double |
max_pollution_to_restore_trees | :: double |
enemy_attack_pollution_consumption_modifier | :: double |

ageing | :: double | Constant modifier a percentage of 1; the pollution eaten by a chunks tiles. [...]
Constant modifier a percentage of 1; the pollution eaten by a chunks tiles. [...]
diffusion_ratio | :: double | Amount that is diffused to neighboring chunks.
Amount that is diffused to neighboring chunks.
enabled | :: bool |
enemy_attack_pollution_consumption_modifier | :: double |
expected_max_per_chunk | :: double | Anything bigger than this is visualized as this value.
Anything bigger than this is visualized as this value.
max_pollution_to_restore_trees | :: double |
min_pollution_to_damage_trees | :: double |
min_to_diffuse | :: double | This much pollution units must be on the chunk to start diffusing.
This much pollution units must be on the chunk to start diffusing.
min_to_show_per_chunk | :: double | Anything lower than this (but > 0) is visualized as this value.
Anything lower than this (but > 0) is visualized as this value.
pollution_per_tree_damage | :: double |
pollution_restored_per_tree_damage | :: double |
pollution_with_max_forest_damage | :: double |

## Properties

### enabled :: bool

### diffusion_ratio :: double

Amount that is diffused to neighboring chunks.

### min_to_diffuse :: double

This much pollution units must be on the chunk to start diffusing.

### ageing :: double

Constant modifier a percentage of 1; the pollution eaten by a chunks tiles. Also known as absorption modifier.

### expected_max_per_chunk :: double

Anything bigger than this is visualized as this value.

### min_to_show_per_chunk :: double

Anything lower than this (but > 0) is visualized as this value.

### min_pollution_to_damage_trees :: double

### pollution_with_max_forest_damage :: double

### pollution_restored_per_tree_damage :: double

### pollution_per_tree_damage :: double

### max_pollution_to_restore_trees :: double

### enemy_attack_pollution_consumption_modifier :: double

Type used in

- MapSettings::pollution