Per- and polyfluoroalkyl substances (PFAS) have long been a concern due to their harmful effects on human health. A recent study conducted by researchers at Boston University School of Public Health (BUSPH) sheds light on the sources of PFAS exposure in adults, particularly in California. While concentrations of older “forever” chemicals have decreased in many foods over the last two decades, the study found that drinking water, as well as seafood, eggs, and brown rice, still contribute to PFAS exposure in adults. It is crucial to pay attention to newer, replacement PFAS to understand and mitigate their harmful effects.
Food has historically been a major source of PFAS exposure, but the study reveals that PFAS exposure through food appears to have declined among adults in California. However, drinking water remains an important source of these chemicals. The researchers examined associations between diet, drinking water, and “legacy” PFAS with blood samples from California residents. The findings suggest that PFAS exposure is linked to the consumption of seafood, eggs, and brown rice, as well as the presence of these chemicals in the drinking water supply.
The study, published in the journal Environmental Science & Technology, highlights the need for ongoing efforts to regulate PFAS in drinking water. Known as “forever chemicals” due to their persistence in the environment, PFAS have been linked to various health conditions, including cancer, liver damage, thyroid disease, and reproductive complications. The researchers emphasize the importance of monitoring and reducing PFAS exposure to protect public health.
The study participants provided information on their food consumption habits and water sources, allowing the researchers to analyze the effects of diet and drinking water on PFAS concentrations in blood. While the study observed fewer dietary associations compared to previous research, the results underscore the need for continued efforts to address PFAS contamination in food and water supplies.
In addition to regulating legacy PFAS, the researchers call for more research on newer, non-legacy PFAS and other sources of exposure, such as indoor air, dust, and cosmetics. Consumers can take steps to reduce their exposure to PFAS by choosing products labeled “fluoro-free” whenever possible. By staying informed and advocating for stricter regulations on PFAS, individuals can help minimize the presence of these harmful chemicals in the environment and protect their health.
Overall, the study’s findings provide valuable insights into the sources of PFAS exposure in adults and underscore the importance of ongoing research and regulatory efforts to address this public health concern. By working together to reduce PFAS exposure, we can create a safer environment for future generations.
