PFAs are a group of chemical compounds that have been created by humans. They include the polyfluoroalkyl compounds Per- and Polyfluoroalkyl They have a long life span and, therefore, remain in the natural environment as well as in wildlife and humans for a long period.

The two chemicals PFOA as well as PFOS are quite well-known and their manufacturers have decided to stop manufacturing the chemicals. Yet, they continue to be discovered in locations that are contaminated as well as PFAS in drinking water and even in our bodies.

PFAS chemicals in drinking water: How one Pa. homeowner took matters into his own hands - WHYY

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  • PFOA is present in the blood of the majority of Americans at very low levels.

  • The PFAS contamination has been found at 94 sites across the 22 states (including industrial factories and airports, military bases, and fire training facilities) and in the tap water of as many as 16 million people across 33 states.

There could be more than 4,000 chemical compounds PFASs. We have no idea the sources of their manufacture and what they are employed for, their water pollution or other forms of presence on the planet, the effects on health, and, it is almost impossible to recognize the presence of these chemicals.

What are the applications of PFASs?

  • Utilization of fire-fighting foam is not uncommon, but it's not the only reason to use them. They've been extensively used since the 1950s in non-stick cookware, water-resistant clothing, stain-resistant fabric and carpets, cosmetics, items that repel water, grease, and oil, as well as the packaging of food items (like food containers and microwave popcorn bags).

What are the health consequences?

  • They're a concern due to their persistence and don't break down in the environment or in the human body, and maybe accumulated over time. Children are especially at risk.

  • Previous studies have revealed that PFOA can cause cancer. PFOS interferes with thyroid hormones and both of which affect the immune system, and also reduce the weight of infants born.