In a study conducted by scientists at Duke University and North Carolina State University, the effectiveness of various household water filters in removing perfluoroalkyl substances (PFAS) from drinking water was examined. PFAS, also known as “forever chemicals,” are a group of toxic substances that have raised concerns due to their potential health impacts and widespread presence in the environment. The study reveals that while some filters are partially effective, high-end reverse osmosis systems are the most efficient in removing PFAS contaminants, making them crucial for ensuring clean drinking water.

The Effectiveness of Different Water Filters: 

The study analyzed 76 point-of-use filters and 13 point-of-entry or whole-house systems, assessing their ability to remove PFAS contaminants. The results showed significant variations in the effectiveness of different filters. Under-sink reverse osmosis filters and two-stage filters achieved near-complete removal of PFAS chemicals, including the highly prevalent GenX. These filters reduced PFAS levels by 94% or more. In contrast, activated-carbon filters commonly used in pitcher-style, countertop, refrigerator, and faucet-mounted filters exhibited inconsistent and unpredictable effectiveness, removing an average of 73% of PFAS contaminants. The removal efficiency of whole-house systems using activated carbon filters varied widely, with four out of six systems actually increasing PFAS levels after filtration.

The Significance of Reverse Osmosis Systems:

The findings of the study highlight the importance of high-end reverse osmosis systems (such as Reverse Osmosis Drinking System by East Coast Water Quality) in effectively removing PFAS contaminants from drinking water. Reverse osmosis filters are capable of achieving near-complete removal of PFAS chemicals, providing a reliable solution for households concerned about the quality of their drinking water.

Environmental and Health Implications of PFAS Contamination:

PFAS contaminants have gained attention due to their persistent nature in the environment and their accumulation in the human body. Exposure to these chemicals has been linked to various health disorders, including cancers, low birth weight in babies, thyroid disease, and impaired immune function. The widespread presence of PFAS in human blood serum samples underscores the urgency to address this issue and ensure the availability of safe drinking water.

The Need for Source Control:

While the study emphasizes the importance of effective filtration systems, it also emphasizes the need for controlling PFAS contaminants at their source. Given the potential health risks associated with PFAS exposure, it is crucial to implement measures to prevent their release into the environment. This includes regulating the use of PFAS in fire-fighting foams, stain- and water-repellants, and other applications to minimize contamination and safeguard water supplies.

Conclusion:

The study conducted by Duke University and North Carolina State University highlights the variable effectiveness of household water filters in removing PFAS contaminants from drinking water. While any filter is better than no filter, high-end reverse osmosis systems are shown to be the most efficient in achieving near-complete removal of PFAS chemicals. This study underscores the significance of investing in reliable filtration systems to ensure the provision of clean and safe drinking water. Additionally, the study emphasizes the importance of source control measures to prevent the release of PFAS contaminants into the environment, thus minimizing their impact on public health.

Compared to most drinking water filtration systems, East Coast Water Quality’s Reverse Osmosis Drinking System is one of the best top tier filtration options out there to combat against forever chemicals in your drinking water. If you would like to get a free water test analysis of your home’s water source feel free to give us a call and we will come to your home for a sample.