Articles by Tasha Stoiber, Ph.D.

PFAS Chemicals Harm the Immune System, Decrease Response to Vaccines, New EWG Review Finds

Toxic PFAS chemicals, notorious for contaminating drinking water supplies across the U.S., are harmful to nearly every human organ, and the immune system is particularly vulnerable. PFAS mixtures...

San Francisco Tap Water Tests: Pesticides Not Detected

Much of EWG's work means warning you about potentially harmful chemicals in your water, food or consumer products. So we're glad to report some good news: Recent tests of San Francisco tap water...

EWG Comments on the California’s OEHHA Draft Public Health Goals for Trihalomethanes

Attached is the letter of comments sent by EWG to the state of California in support of OEHHA’s proposed public health goals for disinfection byproducts trihalomethanes in drinking water.

New Round of EWG Testing Finds Glyphosate in Kids’ Breakfast Foods from Quaker Oats, General Mills

Glyphosate, an herbicide that is heavily used in the U.S., was detected in all 28 oat-based cereal and breakfast products sampled in a new round of testing commissioned by EWG.

EWG Comments on ATSDR Draft Toxicological Profile for PFAS

Attached are EWG’s comments to the Agency for Toxic Substances and Disease Registry, or ATSDR, on its draft toxicological profile on per- and polyfluoroalkyl substances, often referred to as PFAS. EWG...

For National Honey Bee Day, Show Some Love for Pollinators

August 18 is National Honey Bee Day, according to an official proclamation by the Department of Agriculture. It's a good day to focus on the importance of bees and what we can do to protect them.

‘A Civil Action’ Carcinogen Pollutes Tap Water Supplies for 14 Million Americans

Drinking water supplies for 14 million Americans are contaminated with a cancer-causing industrial solvent made notorious by the book and film "A Civil Action," according to a new EWG analysis of...

Advice for Parents: Find Nap Mats Without Flame Retardant Chemicals

When looking for a child care center, parents usually ask about the number of children and the number of adult caretakers in the center, what educational activities are offered, and what's for lunch.

Study: Giving Children Flame-Retardant Free Nap Mats Reduces Harmful Exposures

Children are exposed to brominated and organophosphate flame retardants from nap mats at child care centers, but switching to mats without the chemicals reduces kids' exposures, according to a new...

EWG Comments to the California Department of Toxic Substances Control on Proposed Priority Listing of PFASs in Carpets and Rugs

EWG has submitted comments to the California Department of Toxic Substances Control on the agency's proposed listing of carpets and rugs containing PFAS chemicals as a priority product for review as...

Health Professionals: Fracking Can’t Be Done Without Threatening Public Health

Fracking for oil and gas poses an impending health crisis in the U.S., two leading groups of health professionals warn in a new report.

In a First, California Moves to Protect People from Toxic PFAS Chemicals in Carpets

In a groundbreaking move, California has proposed that carpets and rugs containing the stain-resistant fluorinated chemicals known as PFAS should be considered a priority product under the state's...

EWG’s Letter to Calif. OEHHA on Proposed Safe Level for Haloacetic Acids

EWG submits comments to California’s Office of Environmental Health Hazard Assessment in support of two proposed No Significant Risk Levels for bromochloroacetic acid and bromodichloroacetic acid. EWG...

Why ‘Raw Water’ is a Raw Deal

Americans have good reasons to question the quality of their drinking water.

What to Look for When Buying a Crib Mattress

When Dr. Brandon E. Boor and his colleagues tested 20 new and used crib mattresses purchased in 2011 or earlier, they detected two classes of chemicals associated with endocrine disruption and harm to...

Choosing a Safe Mattress for Your Baby's Crib

During the first few years of their lives, infants can spend most of their time sleeping or crawling in the crib. Choosing children's products that are good for air quality in the baby's room can be a...

Despite EPA Knowledge of Health Hazards, Fracking Chemicals Remain Secret

The Environmental Protection Agency knows that dozens of the chemicals used in fracking pose health hazards. The agency not only allows their use, but also lets the oil and gas industry keep the...

Amid Pipe Wars, Researchers Wary of Plastic Pipes Leaching Chemicals

Over the next decade, U.S. cities and towns will spend an estimated $300 billion to replace aging water and sewer pipes.

How to Remove Toxic Dust, Your Home’s Most Unwanted Guest

Of all the dangers that could be present in our homes, dust may not be the first to come to mind.

San Francisco Moves to Protect Children from Flame Retardant Chemicals

San Francisco could soon become the first U.S. city to prohibit chemical flame retardants in all new upholstered furniture and children's products sold in the city, including online sales.