Per- and polyfluoroalkyl substances, or PFAS for short, are a massive class of man-made industrial pollutants utilized in the production of hundreds of products. According to the Environmental Protection Agency (EPA), these chemicals are prevalent in the environment and the human body.
Because PFAS is a large category encompassing over 4,000 compounds, understanding the chemical jargon is critical. The two most widely generated and extensively studied forms are perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA). While the consequences of these pollutants are only now being fully discovered, their widespread use has made them a pressing environmental and public health concern.
Where Do PFAS Come From?
PFAS are employed across a wide range of industries and are frequently used to make everyday items like carpets and nonstick cookware. Unfortunately, they are released into the environment through several different channels:
- Landfill Sites: When discarded products and materials containing these chemicals break down.
- Sewer Discharges: Which easily contaminate local ground and surface water.
- Fire-fighting Foams: A common and highly concentrated source of environmental contamination.
- Manufacturing Facilities: Direct release from industrial plants that handle the chemicals.
The major environmental worry is that compounds like PFOS and PFOA do not degrade naturally. They can move vast distances in water and air currents, spreading far beyond their original source. For those concerned about local exposure, consulting water quality experts—such as Water Analytics Indonesia—can help provide long-term testing and filtration solutions.
Why Are PFAS Dangerous?
PFAS do not occur naturally in the environment, yet they are increasingly being detected in wildlife, fish, and humans. These chemicals possess peculiar properties that effectively repel water, oil, and stains. However, these same properties mean they do not degrade rapidly or readily. Because of their ability to build up in the body and the environment over time, PFAS have been dubbed “forever chemicals.”
According to a study published in Environmental Science & Technology Letters, millions of people have come into contact with PFAS-contaminated drinking water. Recent research from the Harvard T.H. Chan School of Public Health suggests that the health risks of these widely used chemicals may be vastly underestimated.
A recent review from the U.S. Centers for Disease Control and Prevention (CDC) outlines a host of severe health effects associated with PFAS exposure, including:
- Liver damage
- Decreased fertility
- Increased risk of asthma
- Increased risk of thyroid disease