Smelly. Visible. Potentially toxic.
What is oil and grease?
Oil and grease refers to a combination of substances that do not readily mix with water and are commonly used in industry and daily activities. Examples include motor oil, lubricating oil, fuels, animal fats, and cooking oil.
How does oil and grease enter our environment?
Leaking machinery and vehicles, illegal dumping, spills, and improper disposal of cooking oil are some of the most common ways these substances enter the environment. They can also be washed into rivers and lakes during heavy rains.
How are people exposed to oil and grease?
Public treatment systems remove oil and grease from our drinking water, but people can still be exposed by swimming or wading in rivers and lakes with stormwater outfalls.
Can oil and grease harm my health?
Because they deplete oxygen levels in water, oil and grease are primarily considered a threat to aquatic animals. In large quantities, they can even be deadly. Hydrocarbons found in oil and grease can affect human kidneys, livers, and blood and increase the risk of cancer.