David Andrews
Senior Scientist

Areas of Expertise

  • Chemicals in consumer products
  • Nanomaterials
  • PFAS
  • Sunscreens
  • Tap water

Press Contact

To schedule an interview with David Andrews, contact:


  • Ph.D., Chemistry, Northwestern University
  • B.A., Chemistry, Wesleyan University


David Andrews specializes in the public health implications of chemicals detected in drinking water, consumer products and cosmetics. For the past decade, he has been working to educate consumers, move markets toward safer chemistries and protect health. Andrews holds a patent on quantum interference devices.


In the News

“In the new FDA study, however, oxybenzone was absorbed into the body at about 50 to 100 times higher concentration than any of these other three chemicals they tested.”
- David Andrews
May 9, 2019
“In addition, sunscreens are now worn routinely by both children and adults, contributing to concerns about their safety.”
- David Andrew
August 2, 2019
“Clothing is often treated with stain-repellents, color-fasteners, anti-wrinkle agents, softness-enhancers, and any number of other chemical treatments. Clothing manufacturers don’t have to disclose any of these to customers, and many of the chemicals, including a popular type of waterproofing chemical called fluorosurfactants (often referred to as PFAS), have little or no research backing their safety.”
- David Andrew
July 23, 2019
"It took decades of study before we really understood how potent [PFAS] are. We have to give up the assumption that all of these chemicals are perfectly safe ... These chemicals are concerning and we should eliminate as much [exposure to them] as possible."
- David Andrew
June 4, 2019
“FDA routinely underestimates the risks chemicals pose, especially the risks posed by food chemicals that migrate from food packaging into food, including PFAS chemicals.”
- David Andrew
June 11, 2019
“The half-life of PFAS is on the order of four to five years on average. That means if you ingested some today, in four or five years only half that amount would be gone. They’re also called forever chemicals because they don’t break down in the environment.”
- David Andrew
June 6, 2019
“The more we test, the more we are finding that these contaminants are pervasive, especially across New Jersey. It may be that the contamination is more likely around industrial facilities, but the testing indicates that it is really widespread.”
- David Andrew
November 5, 2019

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