Farm families that consume milk, eggs and beef they raise themselves face an increased risk of cancer if their fields were fertilized with PFAS-laced sewage sludge, the EPA reported this week. The results do not suggest that the broader food supply is contaminated.

Chemicals found in sewage sludge that some farmers use to fertilize fields and pastures can pose a threat to human and animal health, the US Environmental Protection Agency said Tuesday.

Chemicals known as PFOA and PFOS that can be found in sewage sludge used as fertilizer may pose a risk to human health, the U.S. Environmental Protection Agency says.

Environmental advocates are calling for a ban the use of sewage sludge as fertilizer. An EPA draft report found that there may be health risks associated with exposure to PFAS "forever chemicals" in the sludge,

Harmful chemicals in sewage sludge spread on pasture as fertilizer pose a risk to people who regularly consume milk, beef and other products from those farms, in some cases raising cancer risk “several orders of magnitude” above what the Environmental Protection Agency considers acceptable,

Chemicals in sewage sludge that is spread on pasture land as fertilizer are causing cancer, according to the Environmental Protection Agency.

This sludge -- which is sometimes applied to farmland as fertilizer -- can contain high levels of chemicals called per- and polyfluoroalkyl substances, or PFAS, the EPA concluded in its review. Farmers who’ve fertilized their land with sludge for decades might have been exposed to risky levels of PFAS.