The Environmental Protection Agency (EPA) issued a warning on Tuesday regarding the presence of harmful chemicals in sewage sludge used as fertilizer on pasture land. The agency stated that these chemicals are causing an increased risk of cancer, particularly for individuals who regularly consume milk, beef, and other products from farms where the sludge is spread. The EPA emphasized that the risk level is significantly higher than what is considered acceptable.
When cities and towns treat sewage, they separate the liquids from the solids and focus on treating the liquid waste. The solid waste, known as sewage sludge, is often rich in nutrients and is commonly spread on farm fields as fertilizer. However, the EPA now reveals that this sludge contains toxic and persistent PFAS chemicals that treatment plants are unable to effectively remove.
Consuming foods contaminated with these 'forever' chemicals can lead to the accumulation of compounds in the body, potentially causing kidney, prostate, and testicular cancer. Additionally, these chemicals can have adverse effects on the immune system and childhood development.
The EPA's draft risk assessment highlighted that individuals at the highest risk are those who regularly consume dairy products or fish from contaminated sources, or drink water containing PFAS. The agency focused on farmers and residents living near affected areas who have been exposed to these products over an extended period.
Organic farms are prohibited from using sewage sludge as fertilizer, offering reassurance to consumers who opt for organic grass-fed beef. However, farms that transitioned to organic practices may have previously used this sludge.
While the federal government has set limits on certain metals in sewage sludge, it does not currently regulate PFAS chemicals. The EPA's findings aim to guide future actions by federal and state agencies, as well as encourage measures to minimize PFAS exposure.
The EPA's assessment underscores the need for stricter regulations on the use of PFAS-contaminated fertilizers and urges limitations on the release of PFAS into waterways by manufacturers. The Biden administration has already taken steps to reduce PFAS levels in the environment, including drafting rules to decrease PFAS in drinking water.
Several states, such as Maine and Connecticut, have already implemented restrictions or bans on PFAS-contaminated fertilizers derived from sewage. The EPA reassured the public that efforts are in place to monitor the food supply and protect individuals from exposure to these harmful chemicals.
