Several other materials are also commonly recycled, frequently at an industrial level.
Ship breaking is one example that has associated environmental, health, and safety risks for the area where the operation takes place; balancing all these considerations is an environmental justice problem.
Tires are also commonly recycled. Used tires can be added to asphalt, producing road surfaces that are more durable, create less traffic noise, and absorb precipitation better than traditional asphalt[citation needed]. Tires can also be used to make rubber mulch, which is used on playgrounds for safety.
Metal scavenged from automobiles can also be recycled at an industrial scale.