237 KnowYourExposure Articles & Research
Plain-English research and how-to coverage of PFAS, lead, microplastics, well water, phthalates, and other drinking water contaminants. Every post is fact-checked against EPA, CDC, and peer-reviewed sources.
Quick Answer
This index links to 237 pages organized into 17 categories for easy browsing.
Action Guide (9)
- 7-Day Action Plan: Making Your Water Safer
- How to Read Your Annual Water Quality Report
- How to Test Your Water for PFAS at Home
- Military Base Water Contamination: What Veterans Should Do
- Pregnant? Here's How to Reduce PFAS Exposure Now
- Renter's Guide to Safer Drinking Water
- Well Water PFAS Testing: Complete Guide for Private Well Owners
- What to Do If Your Child's School Has Lead in the Water
- Your Water Report Says PFAS Detected. Here's What To Do Next.
City Data (2)
Health Effects (1)
Home Safety (5)
- Does Your House Have Lead Paint? What Your Home's Age Really Tells You
- How Bad Is the Air in Your County? PM2.5, Ozone, and Your Unhealthy Days
- Is Radon a Problem Where You Live? How to Read Your County's EPA Zone
- There's a Superfund Site Near Me. How Worried Should I Be?
- What Are the Factories Near You Actually Releasing?
Lead in Water (9)
- Do Water Filters Remove Lead? Tested and Ranked
- How to Test Your Home Water for Lead (Step by Step)
- Lead Exposure Symptoms in Children: When to Get Tested
- Lead in Drinking Water: How It Gets There and What It Does
- Lead Pipe Replacement Programs by State: 2026 Status
- Lead vs PFAS: Which Water Contaminant Is More Dangerous?
- Old Homes and Lead Pipes: A Renter's Guide to Safe Water
- The State of Lead in US Drinking Water (2026)
- The State of Lead Paint in US Homes (2026)
Legal & Lawsuits (1)
Microplastics (12)
- Are Microplastics in Drinking Water Dangerous? (2026)
- Do Brita Filters Remove Microplastics? What Testing Shows
- Do Plastic Tea Bags Release Microplastics? What One Study Found
- Does Boiling Water Remove Microplastics? Sometimes – If Your Water Is Hard
- Is Keurig Water Safe to Drink? What Actually Leaches
- Microplastics and Fertility: The Research So Far
- Microplastics in Baby Bottles: How Heating Releases Particles
- Microplastics in Bottled Water vs Tap: Which Is Worse?
- Microplastics in Sea Salt: Why 9 in 10 Brands Tested Positive
- Microplastics in Tap Water: What the Latest Research Shows
- Nanoplastics and Your Brain: What the 2025 Research Found
- Where Do Microplastics in Water Come From?
Other Contaminants (6)
- Arsenic in Well Water: Which States Are Most Affected
- Chromium-6 in Drinking Water: The Erin Brockovich Chemical
- Fluoride in Drinking Water: Benefits, Risks, and the Court Ruling
- Manganese in Water: Why Your Water Turns Brown
- Nitrates in Drinking Water: Risks for Pregnant Women
- THMs: The Disinfection Byproduct in Your Water
PFAS Guide (53)
- Best Water Filters for Chicago in 2026
- Best Water Filters for New York City in 2026
- Best Water Filters for Phoenix in 2026
- California vs Texas Water Quality: Which State Has Safer Drinking Water?
- Can You Boil PFAS Out of Water? No, and Here's What Happens Instead
- Can You Detox PFAS From Your Body? An Honest Look at the Evidence
- Colorado vs Arizona Water Quality: Two Western States, Two Different Problems
- Does Boiling Water Remove PFAS? No – It Concentrates Them
- Does Reverse Osmosis Remove PFAS? RO vs. Carbon
- EPA PFAS Limits Explained: What the New Standards Mean for You
- Florida vs New York Water Quality: How Does Your State Compare?
- Georgia vs Alabama Water Quality: Which Southern State Is Safer?
- Hawaii vs Alaska Water Quality: America's Non-Contiguous States Compared
- How Long Does PFAS Stay in Your Body?
- Idaho vs Montana Water Quality: Rocky Mountain Water Compared
- Illinois vs Indiana Water Quality: Midwest Industrial Neighbors
- Iowa vs Nebraska Water Quality: Agriculture's Impact on Tap Water
- Is My Water Safe to Drink? Here's How to Actually Check
- Is Rainwater Safe to Drink? What the PFAS Research Says
- Louisiana vs Mississippi Water Quality: Gulf Coast States Compared
- Massachusetts vs Connecticut Water Quality: New England Neighbors
- Michigan vs Ohio Water Quality: Great Lakes Neighbors, Different Problems
- Minnesota vs Wisconsin Water Quality: Upper Midwest Comparison
- Nevada vs Utah Water Quality: Desert States Face Different Risks
- New Hampshire vs Vermont Water Quality: Small State, Big Differences
- New Mexico vs Oklahoma Water Quality: Uranium Mines vs Oil Fields
- North Carolina vs South Carolina Water Quality: The Carolina Comparison
- Pennsylvania vs New Jersey Water Quality: Mid-Atlantic Showdown
- PFAS Blood Test: Cost, Where to Get One & What Results Mean
- PFAS Contamination in 2025: What You Need to Know
- PFAS Contamination Levels by City: What EPA Data Reveals About Your Drinking Water
- PFAS Health Effects: What These Chemicals Actually Do to Your Body
- PFAS in Coffee: Where Forever Chemicals Actually Come From
- PFAS in Contact Lenses: What the Testing Found in Acuvue, Alcon, and CooperVision
- PFAS in Cosmetics & Makeup: The Hidden Exposure You're Wearing
- PFAS in Microwave Popcorn Bags: What the Coatings Leave Behind
- PFAS in Period Underwear: What the Thinx Settlement Revealed
- PFAS in Pet Food and Dog Food: What Lab Tests of the Bags Found
- PFAS in San Antonio Water: What the EPA Data Actually Shows
- PFAS in Sunscreen: How to Find Brands That Test Clean
- PFAS in Tampons and Period Products: What the Lab Tests Actually Found
- PFAS in Toothpaste: Sorting the Real Concern From the Fluoride Confusion
- PFAS Limits by State: Which States Are Stricter Than the EPA (2026)
- PFAS Sources: Where Do Forever Chemicals Come From?
- South Dakota vs North Dakota Water Quality: The Dakota Comparison
- Tennessee vs Kentucky Water Quality: Appalachian Neighbors Compared
- The State of PFAS in US Drinking Water (2026)
- Trisodium Phosphate in Food: What the Science Actually Says
- Types of PFAS Compounds: What's Actually in Your Water
- Virginia vs Maryland Water Quality: Chesapeake Bay Neighbors Compared
- Washington vs Oregon Water Quality: Pacific Northwest Comparison
- What Are PFAS? The Complete Guide to Forever Chemicals
- Where PFAS Hide in Everyday Products (and Safer Swaps)
Phthalate Exposure (8)
- Are Plastic Wrap and Cling Film Safe? A Phthalate Breakdown
- Flooring, Paint, and Vinyl: Hidden Phthalates in Home Renovations
- Phthalates in Baby Toys: Which Brands Are Actually Safe?
- Phthalates in Food Containers: Why Your Tupperware Matters
- Phthalates in Medical Devices: IV Bags, Tubing, and NICU Exposure
- Phthalates in Perfume and Deodorant: What 'Fragrance' Really Means
- School Supplies and Kids' Backpacks: Phthalate Risks Parents Miss
- Your Shampoo Might Contain DEHP – Here's How to Check
Phthalate Guides (7)
- Best Phthalate-Free Personal Care Products for Babies
- How to Detox Your Home From Phthalates in 7 Days
- How to Reduce Phthalate Exposure During Pregnancy
- Phthalate-Free Products: A 2025 Shopping Guide
- Reading Labels for Phthalates: What to Look For
- Switching to Glass and Stainless Steel: A Practical Guide
- Why You Should Never Microwave Plastic (And What to Use Instead)
Phthalate Science (5)
- DEHP and Preterm Birth: What the 2025 Study Actually Found
- DEHP vs DiNP: Two Phthalate Chemicals You Should Know By Name
- Phthalate Exposure and Infant Mortality: What the Research Says
- Phthalates Linked to 2 Million Preterm Births – Breaking Down the Numbers
- What Are Phthalates? The 'Everywhere Chemicals' in Your Home
Phthalates & Health (3)
Phthalates by Location (4)
Water Filters (21)
- Best Reverse Osmosis Systems for PFAS (2026)
- Best Under-Sink Water Filters for PFAS, Lead, Chlorine (2026)
- Best Water Filters for Apartments (No Plumbing Required)
- Best Water Filters for Baby Formula and Infant Water
- Best Water Filters Under $50 That Actually Work
- Best Water Test Kits: SimpleLab vs Tap Score vs Home Kits
- Best Whole-House Water Filters: Well and City Water
- Clearly Filtered vs Berkey vs ZeroWater: Which Actually Removes PFAS?
- Do Refrigerator Water Filters Remove PFAS? Mostly No, With a Few Exceptions
- Do Shower Filters Remove PFAS? The Honest Answer
- Do Water Softeners Remove PFAS? Short Answer: No
- Does a Refrigerator Water Filter Remove PFAS? Usually Not
- Gravity Water Filters: Are Berkey Alternatives Worth It?
- How Often Should You Replace Your Water Filter?
- How to Choose a PFAS Water Filter (2026 Decision Guide)
- Ninja HydraSense Water Filter Review: What It Actually Removes
- Pitcher Filters Ranked: Brita vs PUR vs ZeroWater
- Reverse Osmosis vs Carbon Block: Which Filter Do You Need?
- Under-Sink vs Countertop vs Pitcher: Which Filter Type Is Right for You?
- Water Filter Replacement Cost Calculator: True Cost of Ownership
- Whole-House PFAS Filtration: Is It Worth $1,000+?
Water Safety (83)
- A Pediatrician's Guide to Phthalate Exposure in Kids
- Are Stainless Steel Pans Safe? What the Science Says About Leaching
- Best Bottled Water for Kidney Disease and Dialysis: What Nephrology Guidance Actually Says
- Best Ceramic Nonstick Pans 2026: PFAS-Tested & Verified
- Best Lead Test Kits for Renters (2026) – Water & Paint
- Best Non-Toxic Air Fryer Under $100 (Actually PFAS-Free Options)
- Best PFAS-Free Air Fryers (2026) – Tested & Verified
- Best PFAS-Free Baby Bottles: 8 Non-Toxic Options Tested
- Best PFAS-Free Rain Gear: 7 Jackets We Actually Tested (2026)
- Best PTFE-Free Cookware (2026) – Tested & Verified PFAS-Free
- Best PTFE-Free Dental Floss: 7 Brands Tested for Tight Contacts & Glide
- Best Stainless Steel Cookware Sets (2026)
- Best Water and Portable Filters for RV, Camping, and Travel
- Best XL PFAS-Free Air Fryers for Families (6-10 Quarts)
- Cast Iron vs Nonstick: Which Pan for Which Job?
- Chloramine vs Chlorine 2026: 6 Key Differences in Your Tap Water
- Dallas Water Filter 2026: 5 Picks That Actually Work
- Does Reboiling Water Make It Unsafe? Almost Never
- Does Sparkling Water Have PFAS? Here's What the Tests Actually Found
- Endocrine Disruptors: 5 Ways Phthalates Affect Hormones
- Forever Chemicals and Pregnancy: What Science Actually Shows
- Houston Water Filter 2026: 5 Picks That Actually Work
- How Long Does Lead Stay in Your Body? The 30-Year Timeline
- How Phthalates Cross the Placenta and Affect Fetal Development
- How to Filter Microplastics from Drinking Water
- How to Reduce PFAS Exposure When Trying to Conceive
- How to Remove PFAS from Drinking Water (6 Methods That Work)
- How to Tell If Cookware Has PTFE: 5 Tests You Can Do Now
- Is Alkaline Water Safe, and Does It Have PFAS? An Honest Look
- Is Louisville, Kentucky Tap Water Safe to Drink? 2026 Data
- Is My Tap Water Safe to Drink in 2025? How to Find Out
- Is New Haven, CT Tap Water Safe to Drink?
- Is Nonstick Cookware Safe to Use While Pregnant?
- Is PTFE Coating in Air Fryers Safe?
- Is PTFE Safe? The Evidence-Based Answer
- Is Takeout Safe During Pregnancy? What PFAS in Food Packaging Means
- Jacksonville Water Filter 2026: 5 Picks That Work
- Lead Exposure Pregnancy OB Checklist: 5 Questions to Ask Your Doctor
- Lead in Baby Formula Water: The Parent's Guide to Safe Mixing
- Lead in School Drinking Water: A Parents' Guide to Action
- Lead Pipes vs Lead Solder vs Lead Fixtures: Which Is Contaminating Your Water?
- Los Angeles Water Filter 2026: 5 Picks That Actually Work
- Military Base Water Contamination Map: 712 DoD Installations With PFAS
- PFAS & IVF: How Forever Chemicals Affect Fertility Treatment Success
- PFAS and Gestational Diabetes: What the Evidence Shows
- PFAS and Preeclampsia: What 69,000 Women Taught Us About Forever Chemicals and Pregnancy Hypertension
- PFAS and Preterm Birth: What Expecting Parents Should Know
- PFAS Blood Test During Pregnancy: How to Get One, What It Costs, and What the Numbers Mean
- PFAS Class Action Lawsuit 2026 Update: $12B+ in Settlements and How to File
- PFAS Exposure in First Trimester Pregnancy: Why Weeks 4-12 Matter Most
- PFAS Health Effects: What the Science Actually Shows
- PFAS in Air Fryers: What the Science Actually Says
- PFAS in Baby Formula & Infant Water: What Every Parent Must Know
- PFAS in Baby Products: Where Forever Chemicals Hide and What to Do About It
- PFAS in Bottled Water: Is It Safer Than Tap?
- PFAS in Breast Milk: Should You Still Breastfeed?
- PFAS in Ceramic Cookware: What 'Ceramic Nonstick' Actually Means
- PFAS in Dental Floss: What the Science Shows About PTFE-Coated Brands
- PFAS in Food Packaging Brands to Avoid: The 2026 Guide
- PFAS in Nonstick Pans: What 'PFOA-Free' Labels Really Mean
- PFAS in Rain Jackets: Why Your Waterproof Gear Is Mid-Overhaul
- PFAS in Rain Water: 5 Outdoor Sources You Can't Avoid
- PFAS in Umbilical Cord Blood: What Every Parent Should Know
- PFAS Lawsuits and Settlements: A Complete Guide to Claims and Compensation
- PFAS-Free Air Fryer Liners: 7 Non-Toxic Options That Actually Work
- Philadelphia Water Filter 2026: 5 Picks That Actually Work
- Prenatal Vitamins with PFAS: What 2024 Independent Testing Found
- PTFE Cookware Temperature Chart: Safe Limits & Toxic Ranges
- PTFE vs PFOA vs PFAS: What's Actually the Difference?
- Radium in Drinking Water: 47 Cities Exceed EPA Limits (2026)
- San Antonio Water Filter 2026: 5 Picks That Actually Work
- San Diego Water Filter 2026: 5 Picks That Filter What Matters
- Spring vs Distilled vs Purified vs Mineral Water: Which Is Safest for PFAS
- The 7 US Cities with the Worst Lead-in-Water Problems in 2026
- The Best PFAS Water Filtration Systems in 2026
- The PFAS-Free Pregnancy Checklist: What to Actually Swap Before Baby
- The State of Water Violations in US Drinking Water (2026)
- Top 25 PFAS Contaminated Cities in the US (2026 Data)
- Well Water PFAS Testing: How to Test Private Wells for Forever Chemicals
- What Is PTFE? The Chemistry Behind Teflon and the PFAS Connection
- What Is TOC in Drinking Water? Total Organic Carbon Explained
- What Reddit Actually Recommends for PFAS Water Filters (We Read 200+ Threads)
- Which Air Fryers Have PFAS? What Every Major Brand Actually Says
Well Water (8)
- Bacteria in Well Water: Coliform, E. Coli, and What to Do
- Best Water Treatment Systems for Well Water
- Hard Water From Wells: Signs, Health Effects, and Solutions
- Iron in Well Water: Causes, Health Effects, and Filters That Work
- Private Well Water Testing: What to Test For and How Often
- Radon in Well Water: Testing and Mitigation for Homeowners
- Well Water After Flooding: How to Test and Disinfect
- Well Water vs City Water: Which Is Actually Safer?