A Historic Step Forward: Biden Administration Establishes National PFAS Limits
The Biden administration has made a momentous move by setting the first-ever nationwide limits for toxic “forever chemicals” (PFAS) in drinking water. This bold action aims to curb the prevalence of these hazardous substances, which have been linked to a myriad of health concerns.
What Are PFAS and Why Are They Problematic?
PFAS, short for per- and polyfluoroalkyl substances, have been widely used in a range of products, including waterproof and nonstick coatings, cookware, and fire-fighting foam. However, these chemicals do not easily break down in the environment, earning them the ominous nickname “forever chemicals.”
As a result, PFAS have found their way into significant portions of the nation’s drinking water. Studies have shown that exposure to PFAS can increase the risk of prostate, kidney, and testicular cancer, impair the immune system, delay child development, reduce fertility, and lead to high blood pressure in pregnant women.
Addressing a Growing Concern
While some states had previously established their own PFAS limits, a nationwide standard was absent. The Environmental Protection Agency (EPA) has now filled this gap by introducing legal restrictions on several types of PFAS.
Specific Limits and Guidelines
The EPA has set limits for two of the most notorious types of PFAS, PFOA and PFOS, at 4 parts per trillion (ppt) for each compound. A ppt is equivalent to one drop of water in twenty Olympic-sized swimming pools.
The agency has also declared that there is no safe level of exposure for these two compounds and established a non-enforceable health goal of zero.
For other types of PFAS, known as PFNA, PFHxS, and GenX, the EPA has set a limit of 10 ppt. Additionally, a limit has been imposed on any mixture containing two or more of GenX, PFNA, PFHxS, and PFBS.
Addressing Historical Contamination
The presence of PFAS in drinking water has raised widespread concern, particularly in areas where industrial activities have led to contamination. Lawsuits filed against major manufacturers, including 3M and DuPont, have recently resulted in settlements worth billions of dollars.
Challenges and Solutions
While these new standards are a significant step forward, there are still hurdles to overcome. Thousands of types of PFAS exist, and the EPA’s current regulations only cover a limited number. However, some water filtration technologies may also help remove other types of PFAS.
Ongoing Efforts
The establishment of national PFAS limits is an ongoing process. As more research is conducted and scientific understanding of these chemicals improves, the regulations may be further refined and expanded to protect the public from the risks posed by these hazardous substances.
Data sourced from: ktla.com
