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Microplastics Removal

What is known, what isn't, and how to read a filter's claim

Microplastics Removal from Water in Fort Bend County

What Are Microplastics?

Microplastics are tiny pieces of plastic. U.S. Environmental Protection Agency researchers define them as plastic particles ranging from 5 millimeters down to 1 nanometer, and they call the smallest of them, under 1 micrometer, nanoplastics.

EPA describes two kinds. Primary microplastics are made small on purpose for use in consumer products. Secondary microplastics break down from larger plastic items, through weathering and wear. The World Health Organization notes that studies reporting microplastics in treated tap and bottled water have raised questions about possible effects on health.

Is There a Limit for Microplastics in Drinking Water?

No. There is no federal drinking water limit for microplastics. In April 2026, EPA added microplastics to its draft Sixth Contaminant Candidate List as a priority contaminant group, the first time EPA has given microplastics that designation. The Contaminant Candidate List is EPA's list of contaminants that are known or anticipated to occur in public water systems and are not currently subject to EPA drinking water regulations. EPA says the listing opens the way to focused research and potential future regulation. When we checked in November 2026, EPA still showed the list as in progress.

There is no standard test method yet, either. EPA says there is a pressing need to develop and standardize methods to collect, extract, count and identify micro- and nanoplastics, and that no single method can characterize the full range of particles. Until those methods exist, be cautious about any test or product that quotes a precise microplastics number for your water.

What the Research Says So Far

The World Health Organization reviewed the evidence on drinking water in its 2019 report, Microplastics in drinking-water. WHO said that, based on the limited information available, microplastics in drinking water did not appear to pose a health risk at current levels, and it called urgently for more research, including standard methods for measuring particles in water and studies of how well different treatment processes remove them. WHO also noted that conventional drinking water treatment can remove particles smaller than a micrometer.

Research has continued since then, and EPA scientists are developing methods to evaluate how microplastics affect human health. The honest summary today is that the science is unsettled. We won't tell you microplastics in your water are harming you, and we won't tell you they aren't.

If you'd like to reduce them in the water you drink anyway, that is a reasonable choice, and the next sections explain how to do it with equipment that has been tested. Questions? Call 281-979-3405.

  • Detailed Quote, Line by Line

    Equipment, labor, site work and exclusions, itemized before anything is scheduled.

  • Your Water Report, Read First

    We read your water system's published report before we recommend anything.

  • Expert Installation

    Experienced installers working with us handle every install, start to finish.

  • Local to Fort Bend County

    Based in Fort Bend County and focused on homes across the county.

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Can a Filter Reduce Microplastics?

Filtration works largely by size. As the U.S. Centers for Disease Control and Prevention puts it, as pore size gets smaller, fewer types of germs and chemicals get through the filter. Microplastics are particles, so fine filtration is the tool. Two kinds of drinking water equipment come up most often:

  • Reverse osmosis. Water is pushed through a very fine membrane, with carbon and sediment stages ahead of it. Some RO systems carry a certified microplastics reduction claim.
  • Filters at the tap. NSF's listings include under-sink, faucet-mount, pitcher and refrigerator filters with a certified microplastics claim. CDC notes that pitcher and refrigerator filters often use activated carbon. Not every filter of these types has the claim.

Whatever the technology, the claim is what matters. Look for "Microplastics Reduction" in the product's certification. NSF lists drinking water filters certified for microplastics reduction under NSF/ANSI 401, its standard for emerging compounds and incidental contaminants. Check the performance data sheet and the certifier's listing for that exact model. A label that says "removes microplastics" without a certification listing behind it is a marketing claim, not a test result.

Treat the Water You Drink

If microplastics in drinking water concern you, treat the water you drink and cook with. An under-sink reverse osmosis system or certified under-sink filter does that at one tap with its own faucet, and its filters are replaced on a schedule its documents set.

Our whole-home filtration is designed for chlorine and chloramine taste and odor, with a sediment pre-filter for sand, rust and grit. We don't sell it as microplastics treatment.

Our detailed quotes name the exact equipment, so you can check its certification listing for a microplastics claim before you approve anything. Call 281-979-3405 to talk it through.

Microplastics FAQs

Is there an EPA limit for microplastics in drinking water?

No. There is no federal drinking water limit. In April 2026, EPA added microplastics to its draft Contaminant Candidate List, the list of contaminants not currently subject to EPA drinking water regulations, as a priority for research and possible future regulation.

Does reverse osmosis remove microplastics?

Some reverse osmosis systems are certified for it: NSF's listings include RO systems with a "Microplastics Reduction" claim under NSF/ANSI 401. The reliable answer for any system is its certification, so check the listing for that exact model.

Do carbon filters remove microplastics?

Some do. NSF's listings include pitcher, refrigerator, faucet-mount and under-sink filters certified for microplastics reduction under NSF/ANSI 401, and CDC notes that pitcher and refrigerator filters often use activated carbon. Others carry no such claim, so check the listing for the specific model.

Are microplastics in drinking water harmful?

The science is unsettled. In 2019 the World Health Organization said that, based on limited information, microplastics in drinking water did not appear to pose a health risk at current levels, and called for more research. EPA is developing methods to study health effects. We don't make health claims either way.

Can I test my water for microplastics?

Not in a standardized way yet. EPA says methods to collect, count and identify microplastics still need to be developed and standardized, so results are hard to interpret or compare. We don't offer microplastics testing.

Benefits of Working With an Expert Team

Microplastics are a new topic with a lot of loose marketing around them. We stick to what the agencies have said, explain what each kind of equipment is tested to do, and name the equipment in a detailed quote so you can check its claims yourself.

  • Detailed Quote, Line by Line

    Equipment, labor, site work and exclusions, itemized before anything is scheduled.

  • Your Water Report, Read First

    We read your water system's published report before we recommend anything.

  • Expert Installation

    Experienced installers working with us handle every install, start to finish.

  • Local to Fort Bend County

    Based in Fort Bend County and focused on homes across the county.

Want Finer Filtration at Your Tap? Talk to Fort Bend Water Pros.

Tell us your ZIP code and what you'd like to change about your drinking water. We'll find your water system, read its report, and send a quote for an under-sink system if you want one. Call 281-979-3405 or reach out online.

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