Rubber mulch is made from recycled tires and is commonly used in playgrounds, landscaping, and other outdoor areas as a ground cover. While rubber mulch has some benefits, such as being durable, long-lasting, and resistant to pests, there are concerns about its safety for the environment.
One of the main concerns with rubber mulch is the leaching of chemicals into the soil and water. The chemicals in the rubber can include heavy metals and other toxins that can be harmful to plants and wildlife. Additionally, the production of rubber mulch can contribute to air pollution and greenhouse gas emissions.
Let’s take a closer look at what experts say and also how rubber mulch is typically used to see if it’s something you might consider.
What the authorities say about rubber mulch
While there is some research suggesting that the chemicals in rubber mulch may not pose a significant risk to human health or the environment, there is still some uncertainty and debate in the scientific community. Some organizations, such as the US Environmental Protection Agency (EPA), recommend caution when using rubber mulch and suggest considering alternative materials such as wood chips or shredded bark.
On the scholastic side, a report
from Washington State University strongly cautions against using rubber tire mulch due to its potential flammability, its tendency to decompose and its ability to leech chemicals into the ground.
Additionally it has poor success in controlling weeds in landscaping applications which is where it’s often used so from a functional perspective, you might be better off with another option.
The safety of rubber mulch for the environment is still being studied, and it’s important to consider the potential risks and benefits before using it. If you do choose to use rubber mulch, be sure to source it from a reputable supplier and follow proper installation and maintenance guidelines to minimize any potential harm.
Where rubber mulch is typically used
Rubber mulch is considered a versatile material that can be used in various ways so if you are thinking about using it or conversely want to avoid being around it, you should look for a number of applications where it’s utilized. Common uses include:
- Landscaping: Rubber mulch can be used as a decorative ground cover in landscaping projects. It can add color, texture, and a finished look to garden beds, playgrounds, and other outdoor areas.
- Playgrounds: Rubber mulch is a popular choice for playgrounds because it is soft and provides cushioning when children fall. It is also non-toxic, non-splintering, and does not decompose like traditional wood mulch.
- Equestrian arenas: Rubber mulch can be used in equestrian arenas to provide a soft surface for horses to walk on. It can also help to reduce dust and provide better traction.
- Athletic fields: Rubber mulch is often used in athletic fields as a cushioning material under artificial turf. It can also be used in natural grass fields to improve drainage and reduce compaction.
- Pathways: Rubber mulch can be used to create pathways and trails in parks, gardens, and other outdoor spaces. It is a durable and low-maintenance option that can withstand heavy foot traffic and weather conditions.
- Landfills: Rubber mulch can be used in landfills to cover and stabilize waste materials. It can also help to reduce odors and prevent the spread of pests.
- Gardening: Rubber mulch can be used in gardening to help retain moisture in the soil and prevent weed growth. It can also help to regulate soil temperature and improve overall soil health.
Can you choose safe rubber mulch?
Most rubber mulch is made from recycled tires, as it is a cost-effective and eco-friendly way to reuse old tires that might otherwise end up in landfills. However, there are some rubber mulch products that are made from other sources of recycled rubber, such as conveyor belts, industrial hoses, or other rubber products.
Some manufacturers also produce rubber mulch using virgin rubber, which is new rubber that has not been previously used or recycled. This type of rubber mulch is generally more expensive than recycled rubber mulch but is often considered to be safer and of higher quality.
Regardless of the source of the rubber used to make the mulch, it is important to ensure that the product meets safety standards and is free from contaminants and toxic chemicals. Look for rubber mulch that has been tested for safety and meets ASTM (American Society for Testing and Materials) standards to ensure that it is safe to use.
Final thoughts
To ensure the safe use of rubber mulch, it is important to:
- Choose high-quality rubber mulch that is free of contaminants and meets safety standards.
- Install rubber mulch at a proper depth and with proper drainage to prevent water from accumulating and potentially contaminating the soil.
- Regularly inspect and maintain the rubber mulch to ensure it is in good condition and has not become compacted, which can reduce its cushioning effect and potentially increase the risk of injury.
- Avoid using rubber mulch near vegetable gardens, drinking water sources, or other sensitive areas where contamination could be a concern.