Brian Barton
In Cities: Skylines, pollution is caused by industries, traffic, sewage, and certain buildings. There are four types of pollution: air, ground, water, and noise. If you want to see how much your city is affected by pollution, you can open the info view; the bottom row shows every pollution type. Ground pollution can be observed as discoloured ground, as well as in the pollution info view. Water downstream of sewage outflows will be discoloured, indicating that it is polluted. To check for water pollution, you can bring up the info panel and look for the icon that looks like a leaking oil drum.
| Characteristics | Values |
|---|---|
| Types of Pollution | Ground, Water, Noise, Air |
| Causes of Pollution | Industries, Traffic, Sewage, Certain Buildings |
| Effect on Citizens | Illness, Unhappiness, Decreased Land Value |
| Ways to Reduce Pollution | Separate Industrial and Residential Areas, Use Trees and Sound Barriers, Improve Traffic Flow, Choose Green Energy |
| Viewing Pollution Levels | Info View, Pollution Infographic, Air Pollution Info View |
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Ground pollution
To reduce ground pollution, players can take several approaches. One method is to build the industrial waste processor, which sends out trucks to industrial zones to collect and remove industrial waste, improving ground pollution levels. Another strategy is to clear the affected areas and plant vegetation, which mirrors the real-world approach to ground pollution remediation. Additionally, players can utilize parks to help remove ground pollution over time.
In certain cases, ground pollution may disappear on its own over time, especially if the source of pollution is removed. This natural dissipation of pollution can be accelerated by de-zoning the affected areas and waiting for the pollution to dissipate before re-zoning.
It is important to note that ground pollution can impact water pollution levels if the polluted ground is near water pumps. Addressing ground pollution near water sources can help improve overall water quality in the city.
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Water pollution
To prevent water pollution, it is important to keep the main sources of pollution, such as industrial zones and power plants, away from residential areas and water sources. Additionally, make sure to separate sewage pipes from water pipes to avoid cross-contamination.
If your city is already facing water pollution, there are several ways to address it. Firstly, identify the source of pollution and remove it. Once the source is removed, fresh water will start flowing, pushing the polluted water downstream. You can also use pumps to suck up the polluted water and connect it to an outlet pipe to clean it. However, be cautious as pumps can pull pollution towards them if there are enough of them or if the water isn't moving.
To effectively manage water pollution, consider building wastewater treatment plants. Upgrading to better treatment plants will reduce the amount of pollution that is pumped out. Additionally, ensure that you have water pumping stations upstream and water draining pipes or treatment plants downstream, with water pipes connecting everything, including all structures for water supply and sewage disposal. Finally, build water towers away from polluted areas and run new pipes from the water towers to the city, providing clean water to your population.
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Noise pollution
In Cities: Skylines, noise pollution is caused by loud sounds produced by various entities, including wind turbines and traffic. When placing a building that produces noise, an orange circle appears, indicating the area that will experience high levels of noise pollution. Almost every unique building will produce noise pollution, so it's important to keep this in mind when placing them.
To check the noise pollution levels in your city, click on the informational panel on the upper left side of the screen. This will bring up a panel with different icons, and you can click on the headphones icon to see the noise pollution levels throughout your city. Quiet areas will be shown as blue, while loud areas will be red and yellow, with red indicating higher noise levels.
- Keep noise-polluting buildings and commercial businesses away from residential areas.
- Ensure roads leading to these areas do not pass directly through residential zones.
- Use office buildings as sound barriers since they produce little to no noise pollution.
- Encourage the use of electric cars or restrict large vehicles to reduce traffic noise.
- Implement district-only policies to prevent heavy traffic and combustion engine vehicles from entering certain areas.
- Plant trees along roads and highways to act as sound barriers, but note that a large number of trees may be needed to see a significant effect.
- Consider downloading a tree 'paintbrush' mod to cover large areas with trees.
- Create parks and campuses to reduce noise pollution and fill empty spaces in your city.
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Air pollution
Understanding Air Pollution in Cities: Skylines:
In the game, air pollution is one of the four types of pollution, including ground, water, and sound pollution. Air pollution is unique compared to the other types as it cannot be managed by simply constructing buildings or other physical structures. Instead, you must adopt a strategic approach to control and reduce it.
Identifying Sources of Air Pollution:
The first step in combating air pollution is identifying its sources. Industrial zones and power plants, especially those powered by coal, are significant contributors to air pollution in the game. Pay close attention to the placement of these zones and plants in relation to the wind direction. Placing industrial areas upwind from residential zones can help prevent air pollution from directly affecting your citizens.
Managing Air Pollution:
- Balance Industrial and Residential Zones: One crucial tactic is to balance the placement of industrial and residential zones. Ensure that industrial zones, which produce more pollution, are located downwind from residential areas to minimize the impact on your citizens' air quality.
- Plant Trees: Trees act as natural air purifiers by absorbing pollution. Strategically placing large trees between industrial and residential zones can significantly improve air quality in the residential areas.
- Adopt Sustainable Energy Sources: Initially, you may rely on coal plants for electricity. However, aim to transition to more sustainable energy sources, such as wind turbines and solar panels, as soon as possible. These clean energy sources do not contribute to air pollution and are key to a pollution-free city.
- Monitor Wind Direction: Always consider wind direction when placing power plants. Arrows indicate the wind direction as you place them. Incorrect placement can send fumes towards your city, increasing pollution and negatively impacting your citizens' happiness.
Patience for Improvement:
Just like in real life, improving air quality in Cities: Skylines takes time and patience. The more trees you incorporate into your city's design, the better the air quality will become over time. Air pollution dissipates relatively quickly, but the exact timeframe depends on the severity of the pollution.
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Reducing pollution
To check for pollution in Cities: Skylines, you can use the "pollution infographic" to see actual pollution levels. There are three types of pollution in the game: ground, water, and noise pollution. Each type of pollution has its own info view, where you can observe the levels of pollution and take steps to reduce it.
Ground Pollution
Ground pollution is mainly caused by industry, with buildings such as fossil fuel power plants, incinerators, and landfills being major contributors. To reduce ground pollution, it is recommended to keep industrial areas away from residential zones. You can also remove the sources of pollution by replacing polluting industries with farming or forestry, which do not cause ground pollution. Additionally, you can use parks to remove pollution from the land.
Water Pollution
Water pollution is often caused by sewage and industrial waste. To prevent this, ensure that your sewage pipes are downstream from your freshwater pipes and water pumps. This will help prevent the contamination of your water supply. Water treatment plants can also be used to eliminate up to 85% of pollution from sewage before disposal, but it is important to still keep this treated water separate from your freshwater supply.
Noise Pollution
Noise pollution is caused by traffic, industry, commercial zones, and certain buildings such as power plants. To reduce noise pollution, you can implement policies that encourage the use of electric cars or restrict large vehicles. Upgrading roads with sound barriers and planting trees along roadsides can also help mitigate noise pollution. Additionally, placing offices in your city can help reduce overall noise pollution levels.
General Strategies
Building a School of Science Unique Faculty within a University Campus Area will result in reduced city-wide pollution. Additionally, trees can help reduce noise pollution, but a large number of trees may be needed to see a significant effect.
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Frequently asked questions
To check for water pollution, bring up the info panel. The icon with the trash barrel shows your garbage, and directly next to it is an icon that looks like a leaking oil drum, which is the pollution icon. You can also check where your sewage output is located and make sure it is not near your freshwater intake or upstream of it.
Ground pollution can be observed as discoloured ground, as well as in the pollution info view. You can also check the pollution infographic to see actual pollution.
To reduce pollution, you can take several measures. Firstly, ensure good traffic flow with minimal traffic jams. Secondly, choose renewable energy sources such as wind turbines, solar power plants, and nuclear power plants instead of coal and gas power plants. Additionally, keep industrial zones and power plants away from residential areas, and use the "district tool" to ban heavy traffic and combustion engines from residential areas.
