What Does New York's Updated PFAS Guidance Mean for You in 2025?

The New York State Department of Environmental Conservation (NYSDEC) has published an updated overview of per- and polyfluoroalkyl substances (PFAS), the family of manmade chemicals often called "forever chemicals." According to NYSDEC, there are thousands of individual PFAS compounds, each with different physical, chemical, and toxicological properties — meaning not all PFAS behave the same way in the environment or in the body. This article breaks down what the agency says, who it affects, and what steps you can reasonably take right now.

What Did NYSDEC Say?

NYSDEC's updated resource page explains that PFAS is not a single chemical but a broad class encompassing thousands of substances. The agency notes that the two most widely studied and best-known PFAS chemicals are PFOA (perfluorooctanoic acid) and PFOS (perfluorooctane sulfonate), both of which have been used for decades in industrial processes and consumer products because of their ability to resist heat, water, oil, and stains.

NYSDEC's page functions as a hub for the state's ongoing PFAS work, pointing New Yorkers toward information on drinking water standards, site remediation, and regulatory tracking. The agency emphasizes that because PFAS chemicals vary so widely in structure and behavior, blanket statements about "PFAS" as a whole can be misleading — some compounds persist and accumulate more than others, and toxicological data is more robust for legacy chemicals like PFOA and PFOS than for many newer replacement compounds.

Who Is Affected by This PFAS Information?

Because PFAS chemicals have been used in hundreds of consumer and industrial applications since the mid-20th century, exposure is widespread. According to NYSDEC and other state environmental agencies, PFAS have been used in:

Nonstick cookware coatings
Water-resistant clothing and outdoor gear
Stain-resistant carpets and upholstery
Food packaging, such as fast-food wrappers and microwave popcorn bags
Firefighting foam used at airports, military bases, and training facilities
Certain industrial and manufacturing processes

New Yorkers who live near current or former industrial sites, airports, or military installations where firefighting foam was used may have a higher likelihood of PFAS presence in nearby soil or groundwater, per NYSDEC's ongoing site assessment work. However, because PFAS have been so widely used in everyday products, most people have some measurable level of exposure regardless of where they live.

Why Does This Matter for Your Health and Water?

Public health researchers have linked exposure to certain PFAS chemicals, particularly PFOA and PFOS, with a range of health associations, including changes in cholesterol levels, immune system effects, and other outcomes under continued study. It's important to understand these findings as associations identified through scientific research, not as proven cause-and-effect relationships for any individual. Research is still evolving, and NYSDEC notes that toxicological understanding differs significantly across the thousands of PFAS compounds that exist.

This matters because PFAS persistence — the "forever chemical" trait — means these substances don't break down easily in the environment or the human body. Once PFAS enter drinking water sources, soil, or biological systems, they can remain for extended periods, which is part of why regulatory agencies like NYSDEC are prioritizing monitoring and cleanup efforts.

What Should You Do About PFAS Right Now?

Given the complexity of PFAS chemistry, NYSDEC's guidance points toward informed, practical steps rather than alarm. Consider the following:

Check your water source. If you're on a public water system, contact your local water provider or check state monitoring data to see if PFAS testing has been conducted in your area. Private well owners may want to consider independent testing.
Review product materials. Some manufacturers have voluntarily phased out certain PFAS compounds, but not all replacement chemicals have been thoroughly studied. Look for product disclosures where available.
Use a filtration option if concerned. Certain water filtration technologies, such as activated carbon or reverse osmosis systems, have been shown to reduce some PFAS compounds in drinking water, though effectiveness varies by chemical type and filter design.
Stay informed on local site cleanups. NYSDEC maintains records on remediation sites where PFAS contamination has been identified and addressed.

If you want to look up whether specific products, brands, or water systems have been associated with PFAS testing or findings, tools like our PFAS finder can help you search available records. For a closer look at how PFAS research and reporting standards are evaluated, our methodology page explains the criteria used to assess sourcing and reliability of PFAS-related claims.

Bottom Line

PFAS is a large and diverse chemical family, and NYSDEC's updated overview reinforces that not all PFAS compounds carry the same level of concern — legacy chemicals like PFOA and PFOS have the most established health associations, while data on many newer compounds remains limited. Rather than treating all PFAS as uniformly hazardous or dismissing the issue entirely, the most reasonable approach is to stay informed, check your local water quality information, and treat products or environments with known PFAS use as warranting a lower level of confidence until more testing data is available.

Frequently Asked Questions

Is PFAS in my tap water dangerous?

It depends on the specific compounds present and their concentration. NYSDEC and other agencies monitor public water systems for certain PFAS chemicals, and levels below regulatory thresholds are generally considered lower concern, though research on long-term exposure continues to evolve.

Are all "forever chemicals" the same?

No. According to NYSDEC, there are thousands of individual PFAS chemicals with different chemical structures, environmental behaviors, and toxicological profiles. PFOA and PFOS are the most studied, but many other PFAS compounds have far less available health data.

Can I remove PFAS from my drinking water at home?

Certain filtration systems, including activated carbon and reverse osmosis units, have been reported to reduce levels of some PFAS compounds. Effectiveness varies, so checking product certifications and independent testing data is recommended before relying on a specific filter.

This article is intended for general consumer information purposes and does not constitute medical or legal advice. Consult a healthcare provider or environmental professional for guidance specific to your situation.