PFAS & Microplastics Treatment Guide: What Works for Both
Why PFAS and Microplastics Together?
PFAS (per- and polyfluoroalkyl substances) and microplastics are both contaminants of emerging concern that share several characteristics:
- Both are persistent. PFAS are called "forever chemicals" because they don't break down. Microplastics degrade extremely slowly in the environment.
- Both are widespread. PFAS have been detected in drinking water systems nationwide. Microplastics are found in virtually all water sources tested.
- People searching for one often care about the other. If you're concerned about emerging contaminants in your water, you likely want a solution that addresses both.
A treatment system that effectively removes both PFAS and microplastics provides practical, comprehensive protection — rather than addressing each contaminant separately.
Treatment Comparison
| Treatment | PFAS Removal | Microplastics Removal | NSF Standard | Best For |
|---|---|---|---|---|
| Reverse Osmosis | Very high (strong evidence) | Very high (strong evidence) | NSF 58 | Both contaminants, comprehensive protection |
| Granular Activated Carbon (GAC) | Good for long-chain PFAS | Limited | NSF 53 | PFAS, taste/odor, chlorine |
| Carbon Block | Good for long-chain PFAS | Moderate (larger particles) | NSF 53 | PFAS + some particle removal |
| Ion Exchange | Very high (excellent for PFAS) | Not effective | — | PFAS-specific, high-flow applications |
Important notes:
- PFAS removal percentages vary significantly by compound. Long-chain PFAS (like PFOS and PFOA) are more effectively removed by carbon than short-chain PFAS (like GenX).
- GAC filter effectiveness for PFAS decreases over time as the carbon becomes saturated. Regular replacement on manufacturer schedule is essential.
- Ion exchange is highly effective for PFAS but does nothing for microplastics or other particulate contaminants.
Key Takeaway
Reverse osmosis is the only single technology with strong evidence for removing both PFAS and microplastics. Carbon filtration is an effective complement — particularly for PFAS — but is less proven for microplastics on its own.
The right choice depends on your specific water quality data and which contaminants are actually present. Start with your water report to understand what you're dealing with before selecting a treatment approach.
Next Step
Get a personalized assessment based on your facility type and water quality data.
This article is provided by WaterAdvantage.org. The site author is employed by Bottleless Nation, a commercial water filtration company. This content provides factual information based on public data, not brand-specific recommendations. Learn more.