
Ground pollution in SimCity is typically caused by poor waste management and sewage solutions. Sewage, by its nature, is pollution, and while the areas around sewage treatment plants will be clean if they can handle the load, the areas around sewage outflow pipes will always be dirty. To reduce ground pollution, you can build a sewage treatment plant, bypassing the need for sewage outlet pipes, or build a sewage outflow pipe far away from your populace. Trees can also help to remove ground pollution, but they will die slowly and need to be replaced. Additionally, parks can be built on top of polluted land to help clean it up faster.
How to get rid of land pollution in SimCity
| Characteristics | Values |
|---|---|
| Air pollution | Caused by dirty and manufacturing industries, certain power plants, traffic, and airports. |
| Air pollution prevention | Activate city ordinances such as the Clean Air Act, reduce traffic congestion, and plant trees. |
| Ground pollution | Caused by poor waste management, sewage, and landfills. |
| Ground pollution prevention | Build sewage treatment plants, plant trees, and place parks over affected areas. |
| Water pollution | Caused by ground pollution, industry, power plants, and seaports. |
| Water pollution prevention | Build water treatment plants. |
| Radiation pollution | Caused by nuclear power plants and meteor strikes. |
| Radiation pollution prevention | Currently no known method to reduce radiation pollution. |
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What You'll Learn
- Reduce air pollution by activating city ordinances, reducing traffic congestion, and adding parks
- Remove ground pollution by planting trees, building parks, and improving sewage treatment
- Prevent water pollution by building water treatment plants and reducing industrial and power plant pollution
- Minimise radiation pollution by avoiding nuclear power plants and meteor strikes
- Encourage high-tech industry to replace dirty factories with clean buildings

Reduce air pollution by activating city ordinances, reducing traffic congestion, and adding parks
While it is impossible to completely stop pollution in SimCity, there are several ways to reduce air pollution.
Activate City Ordinances
One way to prevent air pollution from getting too high is to activate certain city ordinances. In SimCity 4, for example, the Clean Air Act can be enacted, which also reduces the demand for dirty industry.
Reduce Traffic Congestion
Traffic congestion can also contribute to air pollution. While it may not have as large an impact as buildings, it can still be significant. Therefore, it is important to plan a mass transit strategy that reduces congestion and the amount of time vehicles spend on the road. This can include creating long avenues without intersections that are conducive to streetcars, and planning the placement of passenger stations or ferry terminals.
Add Parks
Adding parks can also help to reduce air pollution. While parks themselves may not reduce air pollution, placing trees within parks has been shown to do so. Trees can be accessed from the "Nature Parks" menu, and every tree placed slightly reduces overall air pollution. Additionally, trees increase land value and encourage wealth level upgrades.
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Remove ground pollution by planting trees, building parks, and improving sewage treatment
Ground pollution in SimCity occurs due to poor waste management and sewage solutions. If trash is not picked up, it will turn into ground pollution, and bulldozing landfills will result in all the trash being converted into ground pollution. Sewage outflow pipes will always be a source of pollution, though the areas around sewage treatment plants will be clean if they can handle the load.
To remove ground pollution, you can plant trees and build parks. Trees improve air quality by absorbing gaseous molecules in the air through tiny pores called stomata on their leaves. This process converts pollutants like SO2, NO2, CO, and ozone into harmless substances. Trees also remove particulate matter by catching them on their leaves and stems, which can then be dissolved in stormwater runoff or transferred to the soil during rain. Urban forests in National Capital Area parks have been calculated to remove over 1.1 million metric tons of air pollution annually, including ozone, sulfur dioxide, nitrogen dioxide, carbon monoxide, and fine particulate matter.
In SimCity, using the "Nature" tool under the parks section to plant trees has been confirmed to reduce ground pollution. Adding small parks to each block will significantly lower overall city pollution, increase land value, and encourage wealth upgrades.
While not directly addressing ground pollution, improving sewage treatment processes can help reduce pollution overall. Ensuring that sewage treatment plants are properly equipped and managed can minimize the release of nitrogen and phosphorus into local water bodies or groundwater, preventing water pollution and its associated issues.
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Prevent water pollution by building water treatment plants and reducing industrial and power plant pollution
While it is impossible to completely stop pollution in SimCity, there are strategies to reduce it. Water pollution is caused when a water tower or pumping station is situated in an area infected with ground pollution. To prevent this, ensure that your water sources are not built on polluted land. Ground pollution can be caused by poor waste management and sewage solutions. While the area around sewage outflow pipes will always be dirty, the land around sewage treatment plants will be clean if they can handle the load.
To prevent water pollution, it is essential to address industrial wastewater pollution. Treatment systems can help remove pollutants before releasing the water into the environment. Businesses can also reuse wastewater instead of discharging it. Additionally, explore "green chemistry" practices to find ways to complete industrial processes without using harsh chemicals that can lead to harmful byproducts.
To reduce water pollution from power plants, the Environmental Protection Agency (EPA) has proposed regulations that would significantly decrease pollutant discharge from coal-fired power plants. These regulations aim to foster clean water, clean air, healthy lands, and resilient communities.
In SimCity, adding parks and planting trees can help reduce overall pollution, including ground pollution. While there is currently no known way to reduce radiation pollution, which is caused by nuclear power plants, the EPA is working towards ensuring safe drinking water and protecting surface waters through regulatory measures.
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Minimise radiation pollution by avoiding nuclear power plants and meteor strikes
In SimCity, pollution is an inevitable consequence of building a civilisation. While it is impossible to completely stop pollution, there are strategies to minimise it. Radiation pollution, in particular, is a challenging issue, as it can be caused by a nuclear power plant malfunction or a meteor strike. While there is currently no known method to reduce radiation pollution in SimCity, there are ways to prevent it from occurring in the first place.
To minimise radiation pollution, it is essential to avoid constructing nuclear power plants. Nuclear power plants can be a significant source of radiation pollution if they are not properly managed. In the event of a malfunction, explosion, or staffing with unskilled workers, nuclear power plants can release harmful radiation into the surrounding area. Additionally, the processes involved in mining and refining uranium ore, as well as the manufacturing of reactor fuel and plant components, can generate substantial amounts of pollution. Therefore, avoiding the use of nuclear power plants can help prevent radiation pollution.
Another way to minimise radiation pollution is to focus on preventing meteor strikes. While meteor strikes are a rare occurrence, they can result in radioactive fallout and increase radiation levels in the atmosphere. Unfortunately, there is limited information available on specific strategies to prevent meteor strikes in SimCity. However, in reality, the risk of a meteor strike causing significant radioactive fallout is relatively low, as dangerous fallout is typically associated with short-lived radioactive isotopes that are rare in meteorites and rocks on Earth.
To further reduce the impact of radiation pollution, it is crucial to implement effective waste management practices. Properly handling, transporting, storing, and disposing of radioactive waste is essential for protecting human health and the environment. Radioactive waste can have varying levels of radioactivity, and its disposal methods should adhere to strict regulations to minimise potential radiation exposure to workers and the surrounding areas. Additionally, sealing barriers, such as clay covered with soil or rocks, can be used to prevent the escape of radioactive gases like radon from waste disposal sites.
While there is no direct method to eliminate radiation pollution in SimCity, addressing ground pollution can indirectly help reduce its impact. Ground pollution, caused by poor waste management and sewage solutions, can lead to water pollution, affecting all Sims. By investing in sewage treatment plants and ground scrubbers, you can effectively reduce ground pollution and, consequently, mitigate some of the adverse effects of radiation pollution on your Sim population.
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Encourage high-tech industry to replace dirty factories with clean buildings
To get rid of land pollution in SimCity, you can encourage high-tech industries to replace dirty factories with clean buildings. Here are some strategies to achieve this:
Educate Your Sims
Firstly, focus on educating your Sims. Educated Sims are more likely to seek high-tech jobs and will be attracted to high-tech industries. Build schools, colleges, and universities to raise the education level of your population. This will also help to increase the wealth level of your city, making it more desirable for high-tech industries.
Increase Land Values
By increasing land values in industrial areas, you can encourage the development of level 3 industrial buildings, which produce less pollution. This can be achieved by adding parks, plazas, and mass transit options to your industrial zones. Parks not only make the area more desirable but also help to reduce air pollution, making it more appealing for high-tech industries.
Rezone and Mix Zones
Rezone some industrial buildings as residential or commercial, depending on the demand. This will help to create a mix of zones, including high-wealth residential and commercial areas. High-tech industries are more likely to move into areas with a mix of zones and higher land values.
Activate City Ordinances
Implement city ordinances such as the Clean Air Act to reduce the demand for dirty industries. This will discourage the development of polluting factories and encourage the transition to cleaner, high-tech industries.
Use Taxation
Increase taxes on dirty industries to phase them out gradually. This will make it less desirable for new dirty factories to set up in your city, while also encouraging the development of high-tech industries. You can also try reducing taxes for high-wealth residential, commercial, and high-tech industries to attract them to your city.
Download Mods
Consider downloading mods such as the Industrial Revolution Mod, which reorganizes how industries grow. With this mod, dirty industries will only grow in medium-density industrial zones, while high-tech industries will grow in high-density zones. This can help you control the location and concentration of polluting industries.
By implementing these strategies, you can encourage the replacement of dirty factories with clean, high-tech industries, reducing land pollution in your SimCity.
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Frequently asked questions
Once you remove the source of ground pollution, the land will gradually become inhabitable again. Ground pollution is usually caused by poor waste management and sewage solutions. Sewage outflow pipes should be built as far away from the populace as possible.
Trees will help clean up ground pollution faster, but they will eventually die and need to be replaced. Alternatively, you can build a sewage treatment plant, which will bypass the need for sewage outlet pipes and drastically reduce ground pollution.
You can also convert ground pollution to air pollution by planting trees and building parks. However, this is a slow process.
If you bulldoze a landfill, all the trash will convert to ground pollution. If you exceed the capacity of your sewage treatment system, sewage will back up and cause ground pollution.











































