Research

EWG has researched actions the federal government is committed to taking, or for which it faces congressionally mandated deadlines, to tackle the “forever chemicals” known as PFAS.

If you’re concerned about harmful chemicals in your tap water, you may be thinking of getting a water filter pitcher for your kitchen countertop – or if you already have a filter, making sure it’s the...

The findings are just a small sample of what to expect when the Environmental Protection Agency releases first-time data from thousands of public water systems across the U.S. that is likely to show...

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...

In a recent survey of visitors to the Environmental Working Group’s Tap Water Database, at least half the participants said they think their tap water is unsafe.

As far back as the 1960s, animal studies showed the chemicals caused harm even months after exposure ended and industry studies showed they could migrate from paper and paperboard food packaging into...

For too many Americans, turning on their faucets for a glass of water is like pouring a cocktail of chemicals. Lead, arsenic, the “forever chemicals” known as PFAS and many other substances are often...

Drinking water supplies for almost 60 million people living in major cities and other urban areas throughout the U.S. are contaminated with elevated levels of nitrate, according to a new EWG analysis...

To make sure all communities have better and safer drinking water, EWG research strives to push federal agencies to increase public health protections and invest in drinking water infrastructure.

O...

The number of U.S. communities confirmed to be contaminated with the highly toxic fluorinated compounds known as PFAS continues to grow at an alarming rate. As of June 2022, 2,858 locations in 50...

Tap water samples from throughout Northern Virginia were contaminated with the “forever chemicals” known as PFAS at levels significantly higher than those previously reported for other parts of the...

Either toxic algae or potentially dangerous fecal bacteria forced the closure of at least 116 U.S. beaches this spring and summer and triggered health warnings at 162 more, according to a new analysis...

Rob Bilott's Exposure is a real-life whodunit, a page-turning courtroom drama, a David-and-Goliath story of one man against an industrial colossus and a shocking exposé of America's utterly broken...

Communities across the United States have spent more than $1 billion since 2010 dealing with outbreaks of potentially toxic algae in lakes, rivers, bays and drinking water supplies, according to an...

For the next COVID-19 stimulus bill, House leaders have proposed spending $75.9 billion over five years on water infrastructure. This urgent and long-overdue investment would enable community water...

More than 2 million Americans in hundreds of small, mostly rural communities are drinking water with levels of nitrate that increase the risk of some cancers, according to a recent comprehensive...

Congress may soon spend billions to upgrade our aging drinking water infrastructure, which would significantly improve the safety of our drinking water and create tens of thousands of jobs. The...

By spending billions to upgrade the nation’s failing water infrastructure, Congress can create tens of thousands of jobs and significantly improve the safety of drinking water supplies.

In the face...

Nitrate contamination of drinking water is getting worse in much of rural Minnesota, an Environmental Working Group analysis of state data found.

New laboratory tests commissioned by EWG have for the first time found the toxic fluorinated chemicals known as PFAS in the drinking water of dozens of U.S. cities, including major metropolitan areas...

Drinking water sources for 74 community water systems serving 7.5 million Californians are contaminated with the highly toxic fluorinated chemicals called PFAS, according to an Environmental Working...

Nitrate pollution of U.S. drinking water may be responsible for up to 12,594 cases of cancer a year, at a cost of up to $1.5 billion for health care, according to a new peer-reviewed study by the...

In the almost 20 years since water pollution with toxic fluorinated chemicals, or PFAS, erupted as a public health issue, research has found impacts from exposure to ever-lower levels. Yet there are...

The array of toxic pollutants in California drinking water could in combination cause more than 15,000 excess cases of cancer, according to a peer-reviewed study by scientists at Environmental Working...