Health advisory levels are established for humans. It is up to each pet owner to decide whether to offer water with PFAS detections to pets or animals.
At this time, scientists are still learning about the health effects of exposure to mixtures of different PFAS. One way to learn about whether PFAS will harm people is to do studies on lab animals.
- Most of these studies have tested doses of PFAS that are higher than levels found in the environment.
- These animal studies have found that PFAS can cause damage to the liver and the immune system.
- PFAS have also caused birth defects, delayed development, and newborn deaths in lab animals.
Humans and animals react differently to PFAS, and not all effects observed in animals may occur in humans. Scientists have ways to estimate how the exposure and effects in animals compare to what they would be in humans.
Additional research may change our understanding of the relationship between exposure to PFAS and human health effects.