Benzene in Drinking Water: Health Risks, Sources, and How to Remove It
Benzene is a regulated organic contaminant that can sometimes be found in drinking water supplies. The U.S. Environmental Protection Agency (EPA) has set the Maximum Contaminant Level (MCL) for this chemical at 5 μg/L. Because it is classified as an organic chemical, monitoring is critical to prevent prolonged exposure.
Health Effects
Exposure to benzene in drinking water carries serious health implications. Over time, consuming water with levels above the regulatory limit can lead to an increased risk of cancer. Additionally, exposure is linked to the development of anemia.
How Benzene Gets Into Tap Water
Benzene typically enters drinking water sources through industrial discharge. It can also contaminate water supplies due to leaking gasoline tanks. These two pathways represent the primary ways the contaminant enters water systems.
How to Remove Benzene From Your Water
Water treatment systems can utilize specific methods to remove benzene from drinking water. Granular activated carbon is a highly effective treatment method commonly used for this purpose. Additionally, packed tower aeration is another standard treatment option that successfully removes the contaminant.
Should You Test Your Water?
To check for benzene, you can review your water utility's annual Consumer Confidence Report or search the WaterQ database. If you use a private well near industrial areas or gasoline tanks, testing for organic contaminants is recommended. You can also look up your local water system on WaterQ or check the Benzene data page for reported levels in your area.
Frequently Asked Questions
Is Benzene dangerous in drinking water?
Yes, consuming water with benzene can be harmful to your health. It is associated with an increased risk of cancer and can also cause anemia. Therefore, maintaining levels below the federal limit is important.
How does Benzene get into tap water?
Benzene gets into tap water supplies primarily through industrial discharge and leaking gasoline tanks.
How can I remove Benzene from my water?
Benzene can be removed using treatment methods such as granular activated carbon or packed tower aeration.
Source: EPA National Primary Drinking Water Regulations and WaterQ National Database. For more contaminants, visit our contaminant library.