Articles by Bill Walker, David Andrews, Ph.D.

New EPA Guidelines on PFCs Welcome – but Still Fall Short

Today the Environmental Protection Agency issued a long-awaited drinking water health advisory for the perfluorinated chemicals PFOA and PFOS. But EPA's advisory falls far short of what's needed to...

UPDATE: Is Toxic Teflon Chemical in Your Drinking Water?

The bad news about a toxic chemical used to make Teflon keeps getting worse.

Is Your Drinking Water Contaminated with Toxic Non-stick Chemicals?

When you drink a glass of water, you expect it to be clean and pure, not contaminated with invisible toxic chemicals. But nationwide testing has found that 6.5 million Americans in 27 states are...

Got sunscreen? Great – but keep your shirt on.

By now most of us know to wear sunscreen at the beach or during other outdoor activities. But some people mistakenly think wearing sunscreen makes them immune from sunburn, which can lead to skin...

Teflon-Killing Canaries and the American Dream

As a new EWG report shines a light on DuPont's poisoned legacy in the mid-Ohio River Valley, it's a good time to look back at Teflon's canary effect.

There is Nano-WHAT in My Food?

Are intentionally engineered nanoparticles being added to our food? We don't know for sure – and federal food regulators aren't helping us find out the truth.

What Would It Take for the EPA to Test Every Major Chemical for Safety?

As the Congressional debate over how to fix the failed Toxic Substances Control Act heats up, we have to ask: What would it take for the U.S. Environmental Protection Agency to assess the safety of...

How American Industry Skips Some Chemical Safety Checks

American industry often avoids the federal government's chemical safety checks in an unexpected way, by relying on chemicals “grandfathered” by the 1976 Toxic Substances Control Act, according to a...

Rate Your Plate Series: Natural vs. Artificial Flavors

“Natural flavor” is the fourth most common ingredient listed in EWG's Food Scores, which rates more than 80,000 foods on their degree of nutrition, ingredient concerns and processing concerns. But...

Rate Your Plate Series: Natural vs. Artificial Flavors

“Natural flavor” is the fourth most common ingredient listed in EWG's Food Scores, which rates more than 80,000 foods on their degree of nutrition, ingredient concerns and processing concerns. But...

FDA is trying (again) to clean up your hand soap

The federal Food and Drug administration has announced proposed rules that could drive unnecessary and potentially dangerous products from the market -- antibacterial hand soaps like those marketed by...

Five steps backward with the chemical lobby bill

The industry-backed Chemical Safety Improvement Act of 2013 could be worse for the public than the law now on the books — the Toxic Substances Control Act of 1976. The Toxic Substances Control Act is...

Why EWG Opposes the Chemical Safety Improvement Act

In a blog posted yesterday (June 5), Richard Denison, senior scientist at EDF, sought to explain why his organization supported the Chemical Safety Improvement Act of 2013, introduced May 22 by the...

New Chemicals: Sell First, Test for Safety Later?

A lot of people assume a company can't sell a chemical until it is has been proved safe. They're wrong. Under current law, the Environmental Protection Agency is charged with determining that a...

FDA Proposes Warning Labels on Tanning Beds

The federal Food and Drug Administration has proposed new regulations that would require tanning beds to bear warning labels and tighten agency controls on their operations.

How EWG Grades Cleaning Products in its New Guide

It's that time of year again, when students everywhere try to figure out how well they need to do on the final exam to get an A for the term. Or maybe they're calculating what it will take just to...

Cosmetics Industry To Disavow Hair Straighteners

Most people are - by now - well aware that overexposure to formaldehyde is unsafe. From the FEMA trailer fiasco (remember Katrina?) to the Obama administration's recent decision to classify...

Comments to EPA request premarket safety testing for nanomaterials

EWG opposes an EPA pesticide office plan for conditional registration of a nanoscale silver chemical known as HeiQ AGS-20 and used as an antimicrobial, pesticide and textile preservative. EWG asks the...

Comments on EPA's Nanomaterial Case Study: Nanoscale Silver in Disinfectant Spray

EWG comments to EPA's National Center for Environmental Assessment question a case study's failure to clearly present conclusions about the possible effects on people and the environment of nanoscale...