r/PFAS↗
PFAS Discussion - "Forever Chemicals"
A forum for discussion of all things related to PFAS, Per & Poly Fluoro Alkyl Substances, also known as "Forever Chemicals".
12k subscribers30 posts / mo in Sep 202628 authors / mosince 2019
r/PFAS has 12k members. It gets about 30 posts a month from 28 people. Top topics: Water Contamination Issues, Environmental Litigation and Firefighting Careers.
When to post on r/PFAS
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How r/PFAS has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/PFAS
Top topics
Share of the subreddit's posts
- Water Contamination Issues1.9%
- Environmental Litigation0.8%
- Firefighting Careers0.5%
- Tap Water Taste0.5%
- Gas Masks & Filters0.3%
Brands people mention
Most-mentioned brands and sites, last 12 months
- US EPA
- ScienceDirect
- Nature
- CBC
- The Hill
Everything else about r/PFAS
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research