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Dirty Dozen

By Environmental Working Group

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The health benefits of a diet rich in fruits and vegetables outweigh the risks of pesticide exposure. Use EWG's Shopper's Guide to Pesticides™ to reduce your exposures as much as possible, but eating conventionally-grown produce is far better than not eating fruits and vegetables at all. The Shopper's Guide to Pesticides in Produce™ will help you determine which fruits and vegetables have the most pesticide residues and are the most important to buy organic. You can lower your pesticide intake by avoiding the 12 most contaminated fruits and vegetables and choosing the least contaminated produce.

For the second year, we have expanded the Dirty Dozen™ with a Plus category to highlight two crops – domestically-grown summer squash and leafy greens, specifically kale and collards. These crops did not meet traditional Dirty Dozen™ criteria but were commonly contaminated with pesticides exceptionally toxic to the nervous system.

Though the Environmental Protection Agency has been restricting the uses of the most toxic pesticides, they are still detected on some foods. For example, green beans were on last year's Plus list because they were often contaminated with two highly toxic organophosphates. Those pesticides are being withdrawn from agriculture. But leafy greens still show residues of organophosphates and other risky pesticides. That's why they are on the Plus list for 2013.

Tests in 2008 found that some domestically-grown summer squash – zucchini and yellow crookneck squash -- contained residues of harmful organochlorine pesticides that were phased out of agriculture in the 1970s and 1980s but that linger on some farm fields.

Genetically modified plants, or GMOs, are not often found in the produce section of grocery stores. Field corn, nearly all of which is produced with genetically modified seeds, is used to make tortillas, chips, corn syrup, animal feed and biofuels. Because it is not sold as a fresh vegetable, it is not included in EWG's Shopper's Guide to Pesticides in Produce. Nor is soy, another heavily GMO crop that makes its way into processed food.

The genetically modified crops likely to be found in produce aisles of American supermarkets are zucchini, Hawaiian papaya and some varieties of sweet corn. Most Hawaiian papaya is GMO. Only a small fraction of zucchini and sweet corn are GMO. Since U.S. law does not require labeling of GMO produce, EWG advises people who want to avoid it to purchase the organically-grown versions of these items.

What's New in Version 2013.2

Bug fixes


iPhone Screenshot 1
iPad Screenshot 1
iPad Screenshot 2

Customer Reviews

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?


This app does exactly what it advertises--give you a list of the most- and least-likely fruits and vegetables to be treated with pesticides. I like it because it gives you a guideline on what to buy organic, rather than feeling like you should buy EVERYTHING organic (which just doesn't fit into most people's budget).

Suggested addition

Love this app, but would love to see something similar with seafood. What to buy from which region. Farmed vs wild caught, endangered, mercury levels, etc.

Dirty Dozen
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Reference
  • Updated: May 06, 2013
  • Version: 2013.2
  • Size: 10.0 MB
  • Languages: English, German, Northern Sami, Spanish
  • Seller: Environmental Working Group

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

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