The Hidden Dangers of PFAS in Water: Why Testing Matters
- Published:
- Updated: January 2, 2025
Summary
Per- and polyfluoroalkyl substances (PFAS) pose significant health risks due to their persistence in water sources. Exposure to PFAS has been linked to cancer, thyroid issues, and developmental problems. Testing for PFAS is crucial to identify contamination sources, monitor trends, and protect public health. While federal regulations are lacking, some states have established standards. Mitigating PFAS contamination requires reducing usage, improving wastewater treatment, and encouraging regular water testing. Consumers can also protect themselves by checking water sources, installing treatment systems, and avoiding PFAS-containing products.
- PFAS contamination presents serious health risks, including cancer, thyroid issues, and developmental problems.
- Testing for PFAS is essential to identify contamination sources and protect public health.
- Mitigating PFAS contamination involves reducing usage, improving treatment, and encouraging regular water testing.
Per- and polyfluoroalkyl substances (PFAS) are chemicals widely used in consumer goods including non-stick cooking pots, food wraps and fire fighting foam. These chemicals are long-term, and they are found in the drinking water, groundwater and surface water. PFAS is known to have various health consequences, from cancer to thyroid and developmental disorders, so water PFAS should be monitored and minimized.
What are PFAS and How Do They End Up in Water?
PFAS are a group of man-made chemicals that have been used in a variety of consumer products for their non-stick, water-resistant, and fire-retardant properties. These chemicals are highly persistent in the environment and do not break down easily, which means they can accumulate in water, soil, and wildlife over time. PFAS can enter water sources through several pathways, including runoff from landfills and industrial sites, discharge from wastewater treatment plants, and leaching from fire fighting foam.
The persistence of PFAS in the environment and the widespread use of these chemicals in consumer products have led to PFAS being detected in drinking water, groundwater, and surface water sources in many parts of the world. The presence of PFAS in water sources highlights the need for monitoring and reducing PFAS levels in water to protect public health.
Health Effects of PFAS Exposure
PFAS exposure has been linked to a range of health effects, including:
- Cancer: Some studies have suggested that exposure to PFAS may increase the risk of certain types of cancer, including testicular and kidney cancer. Long-term exposure to high levels of PFAS has been associated with an increased risk of cancer, and it is important to monitor and reduce PFAS levels in water to protect public health.
- Thyroid problems: PFAS exposure has been linked to changes in thyroid hormone levels, which can impact metabolism and overall health. These changes in thyroid hormone levels can result in symptoms such as fatigue, weight gain, and depression.
- Developmental issues: PFAS exposure has been linked to developmental problems, including lower birth weight and reduced immunity. These developmental problems can have long-lasting impacts on health and wellbeing and highlight the importance of reducing exposure to PFAS in water.
Why is Testing for PFAS in Water Important?
Water samples need to be tested for PFAS to ensure the protection of public health and the environment. Some of the reasons to test for PFAS include public health, source detection and time-variance studies. And when we analyse water for PFAS, we know exactly how much is present and from where, crucially for the health of the people. By measuring levels at a regular interval, we can track PFAS over time, to keep an eye on, and reduce exposure to, them.
Tests can also identify PFAS contamination source(s), for prevention of exposure and subsequent contamination. When we know where PFAS leaks, we can reduce their use in everyday products and improve wastewater treatment to ensure PFAS does not enter waterways. Monitoring of PFAS levels can also be tracked by frequent testing, which can be useful for knowing how these chemicals influence water quality and human health, and where more needs to be done to decrease exposures to these chemicals and protect public health.
The Current Regulations on PFAS in Water
We don’t have federal drinking water standards for PFAS, though some states have made their own. The U.S. Environmental Protection Agency (EPA) has set a lifetime health advisory of 70 parts per trillion (ppt) for two PFAS chemicals: PFOA and PFOS. This is the most current science-based health advisory level, and was designed to protect human health by lowering exposure to these chemicals in water.
Even though there are no federal drinking water standards, states are trying to control PFAS in water. New Jersey, Vermont and Minnesota, for instance, have PFAS drinking water standards, and others are considering them.
Mitigating PFAS Contamination in Water Sources
Voicin’s a list of ways to decrease PFAS in water:
PFAS in consumer products reduced: With PFAS in consumer products reduced, we can decrease PFAS released into the environment and our exposure to chemicals.
Improve wastewater treatment: Using improved wastewater treatment processes like upgrading treatment or adding treatment barriers (like landfills and industrial plant cap-and-forth) Improve wastewater treatment, including better treatments or treatment barriers (like cap-and-forth).
Apply best management practices: Applied best management practices can reduce the amount of PFAS that is discharged into the environment, by, for example, not using PFAS-based fire fighting foam.
Monitoring and treatment of contaminated groundwater: By monitoring and treating contaminated groundwater, PFAS may be kept in check and exposure to PFAS reduced.
Encourage frequent water testing: Encouragement of frequent water testing is a way to detect PFAS contamination points and measure PFAS levels over time.
How Can Consumers Protect Themselves from PFAS in Water?
The consumers are critical in protecting themselves from water PFAS. They can do some things to lower their levels of these chemicals, such as test their water, get a point-of-use treatment system, and don’t use PFAS products. Consumers can check their water to see if it has been tested for PFAS and if it has PFAS.
If they discovered that their water was contaminated with PFAS, they can consider putting in a point-of-use treatment device like a reverse osmosis or activated carbon filter to get rid of PFAS from their water. Consumers can also minimize their PFAS exposure through not using PFAS products like non-stick cookware and food packaging. In doing so, consumers will avoid PFAS in water and can have access to safe, clean water.
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