Research

Getting ‘forever chemicals’ out of drinking water: EWG’s guide to PFAS water filters

Taking ‘forever chemicals’ out of drinking water: EWG’s guide to PFAS water filters. Discover the most effective water filters for reducing PFAS contamination in your water. EWG's extensive tests...

July 11, 2023

Food

Children’s Health

Pesticides

Chlormequat

EWG investigation: Dangerous agricultural chemical chlormequat found in popular oat-based products

A new EWG investigation finds for the first time troubling concentrations of the toxic agricultural chemical chlormequat in oat-based products sold in the U.S., including everyday brands marketed to...

January 31, 2023

All Research

Displaying 121 - 144 of 197

EWG Assessment of EPA Draft Human Health Risk Assessment for the Teflon Chemical PFOA

November 7, 2007

An Environmental Working Group (EWG) analysis of the Environmental Protection Agency's (EPA's) newly released draft human health risk assessment for the Teflon chemical (C-8, APFO, or PFOA) shows that...

BPA

Phthalates

Triclosan

Cleaning Supplies

Cosmetics

Down the Drain

July 12, 2007

EWG and East Bay Municipal Utility District (EBMUD) researchers analyzed samples of wastewater from residential, commercial, and industrial sites in the San Francisco Bay Area. 18 of 19 wastewater...

Stolen Inventory

April 10, 2007

The Bush Administration has adopted regulations that will dramatically roll back Americans' right to know about chemical hazards in their neighborhoods, allowing California industries to handle almost...

BPA

Food

Bisphenol A - Toxic Plastics Chemical in Canned Food

March 5, 2007

EWG laboratory tests found a toxic food-can lining ingredient associated with birth defects of the male and female reproductive systems in over half of 97 cans of name-brand fruit, vegetables, soda...

Phthalates

Cosmetics

Scented Secrets

February 12, 2007

A major loophole in federal law allows fragrance manufacturers to hide potentially hazardous chemicals in product scents, including substances linked to allergies, birth defects, and even cancer...

PFC Dictionary

November 13, 2006

PFOA is used to make PTFE, the Teflon in pans. However, scientific evidence points to fluorotelomers as the main source of the PFOA and other perfluorinated chemicals in Americans' blood. That...

Across Generations

May 10, 2006

The unique bond between a mother and daughter starts in the womb and evolves over a lifetime, as each adapts and grows with the other in an elaborate interplay of nature and nurture. Shared bonds of...

Stolen Inventory (California)

April 17, 2006

A Bush Administration proposal to roll back Americans' right to know about chemical hazards in their neighborhoods would let California industries handle almost 1.5 million pounds of toxic chemicals a...

Stolen Inventory (National)

January 13, 2006

An Environmental Working Group investigation of government and industry data shows that EPA has failed to require public disclosure of pollution data under the Toxics Release Inventory (TRI) for at...

Chromium-6

Water

Chrome-Plated Fraud

December 23, 2005

A consulting firm hired by Pacific Gas & Electric Co. (PG&E) to fight the "Erin Brockovich" lawsuit distorted data from a Chinese study to plant an article in a scientific journal reversing the study...

Dioxin

Lead

Children’s Health

Body Burden: The Pollution in Newborns

July 14, 2005

In the month leading up to a baby's birth, the umbilical cord pulses with the equivalent of at least 300 quarts of blood each day, pumped back and forth from the nutrient- and oxygen-rich placenta to...

Smoggy Schools

April 20, 2005

Smoggy air costs Californians more than $521 million a year — a price paid in hundreds of trips to the emergency room, thousands of hospital admissions and millions of missed school days, according to...

Like Oil and Water

April 5, 2005

Two years ago, support for Tom DeLay's MTBE liability shield for oil and chemical companies stalled when documents surfaced showing the companies had, contrary to their claims, aggressively lobbied...

DuPont Study Finds Link Between Teflon Contaminant and Elevated Cholesterol

January 11, 2005

Despite Teflon maker DuPont's longstanding claim that there are 'no known health effects' associated with its Teflon chemical PFOA, the company today announced that in a recently-completed worker...

Still Above The Law

July 29, 2004

Refineries, power plants and other large industrial facilities in California that violate clean air laws typically pay penalties lower than what an SUV driver may legally be fined for a smog violation...

Flame Retardants

PBDEs - Fire Retardants in Dust

May 12, 2004

In the first nationwide tests for brominated fire retardants in house dust, the Environmental Working Group (EWG) found unexpectedly high levels of these neurotoxic chemicals in every home sampled...

MTBE In Drinking Water

October 22, 2003

An EWG analysis of data from state environmental agencies finds that drinking water supplies for over 15 million Americans are contaminated with MTBE, a suspected carcinogen added to gasoline that...

PCBs in Farmed Salmon

July 31, 2003

These first-ever tests of farmed salmon from U.S. grocery stores show that farmed salmon are likely the most PCB-contaminated protein source in the U.S. food supply. On average farmed salmon have 16...

Flame Retardants

Food

Tainted Catch

July 10, 2003

Levels of a little-known class of neurotoxic chemicals found in computers, TV sets, cars and furniture are building up rapidly in key indicator species of San Francisco Bay fish, according to tests by...

Monsanto in Alabama

June 18, 2003

Documents obtained by the Environmental Working Group (EWG) through Freedom of Information Act (FOIA) requests and a review of court records show that a federal cleanup agreement between Monsanto and...

Chemical Policy

DuPont workers smoke Teflon-laced cigarettes in company experiments

May 28, 2003

A series of studies published beginning in the 1950s shows that DuPont has known for at least 50 years that Teflon fumes at relatively low temperatures can cause an acute illness known as polymer fume...

Canaries in the Kitchen

May 15, 2003

Telfon-coated cookware poses a hazard when it is heated to high temperatures. EWG tests show that in 2 to 5 minutes on a conventional stovetop, cookware coated with Teflon and other non-stick surfaces...

Water

PFCs: Global Contaminants

April 3, 2003

Consumers instantly recognize them as household miracles of modern chemistry, a family of substances that keeps food from sticking to pots and pans, repels stains on furniture and rugs, and makes the...

Perchlorate

Water

Rocket Fuel in Drinking Water

March 3, 2003

Drinking water for more than 20 million Americans is contaminated with a toxic legacy of the Cold War: Perchlorate interferes with normal thyroid function, may cause cancer and persists indefinitely...

Expert Spotlight

Chemical companies provide quarterly reports on production and sales figures to shareholders. Why shouldn’t the public and EPA receive similar reports every year about commonly used chemicals, some of which could pose a serious health risk?”

David Andrews, Ph.D.

Acting Chief Science Officer

All Experts

News & Insights

Food

California

States, not the FDA, are now the front lines of food safety

March 19, 2026

Evidence keeps mounting about the health risks of common food chemicals. At the same time, Americans are waking up to the fact that the federal government not only doesn’t vet the chemicals used in...

Food

Ultra-Processed Foods

Natural and artificial flavor: What's the difference?

March 19, 2026

If you’ve studied ingredient labels and been mystified by “natural flavor” and “artificial flavor,” you’re not alone. These vague terms suggest a big gap in quality, but the reality is more complex...

Map of the United States with states highlighted in green.

Food