What is PFAS and why is it dangerous?

PFAS (per- and polyfluoroalkyl substances) are a group of man-made chemicals that have been used in various industrial applications and consumer products since the 1940s. They are known for their water, grease and dirt-repellent properties.

PFAS include thousands of different chemicals, the best known of which are PFOA (perfluorooctanoic acid) and PFOS (perfluorooctane sulfonic acid). PFAS are known as "forever chemicals" because they are very stable and do not break down easily in the environment. They can accumulate in water, soil and living organisms.

These chemicals can build up in the human body and in animals, meaning that concentrations can increase over time from continuous exposure through food, water, or other sources. Some studies have found a link between PFAS exposure and an increased risk of certain types of cancer, such as kidney and testicular cancer.

PFAS can also damage the liver, disrupt hormones, weaken the immune system and increase cholesterol. In pregnant women, PFAS exposure can lead to lower birth weight in infants.

In conclusion, PFAS are a group of persistent and bioaccumulative chemicals that can pose serious health and environmental risks. Further research is needed to determine the dose that is harmful to health.

Source: https://www.atsdr.cdc.gov/pfas/

Source: https://www.who.int/news-room/articles-detail/who-technical-advisory-group-on-per--and-poly-fluoroalkyl-substances-(pfas)-assessment

Author: Prof. Dr. Dirk Devroey - Latest update: 2024-05-02 - Copyright: Clinifacts 2024