Research

We work closely with subject matter experts to bring you breakthrough research that you can count on. Explore our data-driven publications and reports.

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Water

PFAS Chemicals

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

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

Federal & State Energy Policy

Power and profit: How PG&E fails California ratepayers and what to do about it

EWG’s utility business model would create a more balanced policy and regulatory regime for PG&E customers. It is designed to hold the company responsible for its investment patterns and shift...

June 16, 2022

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Displaying 1 - 7 of 7

Cell Phones

Radiofrequency electromagnetic fields may affect heart health, new EWG analysis finds

November 22, 2022

Electromagnetic radiation in the radiofrequency range emitted by cell phones, tablets and other wireless communication devices is absorbed by the human body and may affect heart health, according to a...

Cell Phones

Reproductive Health

How exposure to cell phones and other technology affects reproductive health

June 27, 2022

Wireless devices like cell phones, Wi-Fi and other communication technologies release radiofrequency radiation that can harm the human body.

Cell Phones

Does Your Cell Phone Case Raise Your Radiation Exposure?

March 3, 2015

Some 9 percent of Americans use smartphones. Many of them buy cases for their phones, hoping to protect their expensive devices from harm. But it's the users who need better protection.

Cell Phones

Cell Phone Radiation Depends On Wireless Carrier

November 12, 2013

A series of studies quietly published over the last five years show that cell phone network technologies affect radiation exposure as much as the phone design itself.

Cell Phones

EWG's Guide to Safer Cell Phone Use

August 27, 2013

EWG's 2012 guide to cell phone radiation summarizes the new research and the lack of protective government standards for phone radiation. Recommendations to consumers including taking steps to reduce...

Cell Phones

FCC downplays cell phone radiation risks

September 28, 2010

On September 20th, 2010 the Federal Communications Commission (FCC) overhauled its website (www.fcc.gov/cgb/sar/) to downplay the health risks of cell phone emissions and raise questions about the...

Cell Phones

EWG's Report on Cell Phone Radiation

September 1, 2009

EWG's 2009 Report on cell phone radiation summarizes the state of the science on cell phone radiation and raises concerns about long-term health impacts. Recommendations to reduce exposures for...

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.

Senior Scientist, Chemical Research: Chemistry and Toxicology

All Experts

News & Insights

Food

Meat and Dairy Alternatives

7 reasons to add more plants to your diet

January 18, 2024

You probably know plant-based and plant-forward diets have considerable benefits. But you might not know the exact benefits.. Do they help your health? The environment?

Cosmetics

Reproductive Health

Hundreds of chemicals in everyday consumer products may increase breast cancer risk

January 17, 2024

More than 900 chemicals found in cosmetics, drinking water, food and cleaning supplies used by millions of Americans every day may cause biological changes linked to risk of developing breast cancer...

Cleaning Supplies

Companies fight to keep consumers in the dark about chemicals in cleaners

January 12, 2024

During the cold winter months you may spend more time inside than out. And you may do more cleaning, especially because it’s also the flu and COVID season. But before you reach for that spray cleaner...

Factory Farms

Farm Pollution

E. coli from factory farms threatens America's leafy greens

January 11, 2024

A single enormous cattle feeding operation potentially threatens the safety of thousands of acres of leafy greens grown in the U.S. during the colder months, an EWG analysis shows.

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Key Issues

PFAS Chemicals

Research

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

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

Power and profit: How PG&E fails California ratepayers and what to do about it

Areas of Focus

Radiofrequency electromagnetic fields may affect heart health, new EWG analysis finds

How exposure to cell phones and other technology affects reproductive health

Does Your Cell Phone Case Raise Your Radiation Exposure?

Cell Phone Radiation Depends On Wireless Carrier

EWG's Guide to Safer Cell Phone Use

FCC downplays cell phone radiation risks

EWG's Report on Cell Phone Radiation

David Andrews, Ph.D.

EWG comments on the WHO proposed guidelines for PFOA and PFOS contamination of drinking water

Flawed WHO report on ‘forever chemicals’ fails human health, EWG scientists find

Addressing misinformation on the internet about EWG’s ratings systems

What are PFAS? Defining per- and polyfluoroalkyl ether acids

7 reasons to add more plants to your diet

Hundreds of chemicals in everyday consumer products may increase breast cancer risk

Companies fight to keep consumers in the dark about chemicals in cleaners

E. coli from factory farms threatens America's leafy greens

Key Issues

Research

Areas of Focus

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Articles by David Andrews, Ph.D.