Conventional strawberries top the Dirty Dozen™ list of EWG's 2016 Shopper's Guide to Pesticides in Produce, displacing apples, which headed the list the last five years running.

Nearly all strawberry samples - 98 percent - tested by federal officials had detectable pesticide residues. Forty percent had residues of 10 or more pesticides and some had residues of 17 different pesticides. Some of the chemicals detected on strawberries are relatively benign, but others are linked to cancer, reproductive and developmental damage, hormone disruption and neurological problems.

Strawberries were once a seasonal, limited crop, but heavy use of pesticides has increased yield and stretched the growing season. In California, where most U.S. strawberries are grown, each acre is treated with an astonishing 300 pounds of pesticides. More than 60 pounds are conventional chemicals that may leave post-harvest residues but most are fumigants - volatile poison gases that can drift into nearby schools and neighborhoods.

"It is startling to see how heavily strawberries are contaminated with residues of hazardous pesticides, but even more shocking is that these residues don't violate the weak U.S. laws and regulations on pesticides in food," said Sonya Lunder, EWG Senior Analyst. "The EPA's levels of residues allowed on produce are too lax to protect Americans' health. They should be updated to reflect new research that shows even very small doses of toxic chemicals can be harmful, particularly for young children."

"Parents looking for help in lowering their children’s exposure to pesticides while still eating plenty of healthy fruits and vegetables can turn to the Environmental Working Group's guide as an easy-to-use resource when shopping at the store," said Dr. Philip Landrigan.

Dr. Landrigan is the Dean of Global Health and Director of the Children's Environmental Health Center at Mt. Sinai School of Medicine, and was the principal author of the pivotal 1993 National Academy of Sciences study, "Pesticides in the Diets of Infants and Children," that led Congress to pass the 1996 Food Quality Protection Act that set safety standards for pesticides on foods.

Recent studies of insecticides used on some fruits and vegetables, including strawberries, found that children exposed to high levels were at greater risk of impaired intelligence and ADHD. Research also indicates that the levels of pesticides in the bodies of elementary school children peaked during the summer, when they ate the most fresh produce. But after just five days on an organic diet, they were essentially pesticide-free.
The Dirty Dozen lists the fruits and vegetables that have been contaminated by multiple pesticides and which have higher concentrations of pesticides. More than 98 percent of strawberries, peaches, nectarines and apples tested positive for at least one pesticide residue. The average potato had more pesticides by weight than any other produce.

Avocados, on the other hand, remained atop EWG's Clean Fifteen™ list with less than one percent of samples showing any detectable pesticides. No single fruit sample from the Clean Fifteen tested positive for more than four types of pesticides, and very few for more than one.

"Fruits and vegetables are important for your health," Lunder said. "But for those on the Dirty Dozen, we recommend buying the organic versions if you want to avoid pesticides on your food. You can feel confident that conventionally grown fruits and veggies on the Clean Fifteen list have very little pesticide contamination."

What’s New

Version 2017.2

Fixed icon and loading screen bug.

Ratings and Reviews

3.6 out of 5
7 Ratings
7 Ratings
Debhem ,

Unable to download

I just purchased a new iPad and tried to download this app. Unfortunately, the download stopped about half way through and never finished. Obviously there’s a bug that needs fixing .

Yowzoe ,

Could be so much more…

Boring, but update is better than the last version.

The substance of the app is important and necessary. But this is 2013, abd people, including me, have the attention span of knats. Substance alone does not fly.

Why not get some (young) volunteers to redesign your app to make it sexy. Yes, sexy. If you want to influence the world with this incredibly needed information, take your app up a notch in style. If you won't do it, pass it on to someone who can.

Also, it could be expanded in so many ways. Just review your many reviewer comments -- I mean the well-meaning ones.

This app could be the most important thing the Environmental Working Group does in terms of public outreach. Instead, it is mediocre at best. Sorry to be blunt, I'm trying to get someone's attention. It's frustrating that this information is presented in such an uncreative, bland, visually un-stimulating, and somewhat confusing manner. 5 stars for good intentions.

Don't get me started on the EWG's sunscreen buyer's app. It's a freaking disaster compared to this even.

Sex it up so that more people can and will use this app. Or do you want to make it so inaccessible that few will get the information?

wannabeasavvyshopper ,

EWG's app gets the job done

I already knew about and have long relied on EWG for info on best/worst fruits & vegetables and also its sunscreen evaluations (I copied a list of their best drugstore-available sunscreens onto my iPhone notes so that I'd have it handy this past summer for sunscreen purchases). But I already carry around too much stuff in my purse so I never have their fruit and veggie list handy (I memorized that strawberries, peaches, nectarines, and grapes are the biggest offenders and highest priority for buying organic). Very happy to have this app on my iPhone, and I recommend that EWG create a for-purchase version as a fundraiser (can still offer the free one, but designate the other one as a fundraising version). Thanks EWG!


Environmental Working Group
16.9 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2016 Environmental Working Group


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like