An apple a day may keep the doctor away, but it's also teeming with toxic insecticides and fungicides, according to the Environmental Working Group's 2012 “Dirty Dozen” list.
Each year, the EWG publishes its Shopper's Guide to Pesticides in Produce to help consumers control pesticide exposure by identifying the most contaminated fruits and vegetables. This year, the list included two additional crops that did not meet the traditional Dirty Dozen criteria, yet still exhibited highly toxic insecticides.
Before you ditch these fruits and vegetables altogether, keep in mind that going organic—particularly with produce you consume daily or several times a week—can help you stay pesticide-free. That being said, not everyone can afford to buy organic, so the EWG emphasizes that the list should be used as a guide.
"If you eat an apple every single day and pesticides are a concern for you, buy organic," said EWG toxicologist Johanna Congleton, Ph.D. "But the health benefits of a diet rich in fruits and vegetables outweigh the risks of pesticide exposure, so if it's between a [conventionally-grown] apple or a bag of chips, we still want you to eat that apple."
Check out EWG’s top 14 pesticide-laden fruits and vegetables so you can make good decisions when it comes to going organic.
Apple picking season is September through November and yet they’re available year-round. How? They're sprayed with a fungicide to prevent spoilage and then coated with a food-grade wax before being put into cold storage, says Christopher Campbell, EWG's Vice President for Information Technology. "They only pick them one time a year, so that apple you eat in August was picked the previous year," says Campbell.
This grants them the top spot in the Dirty Dozen list.
Because pesticides were detected within the flesh of the fruit, peeling and washing doesn't help curb exposure. Plus, it removes the skin, which is the most nutrient-rich part of the fruit. So when buying apples, go organic whenever possible.
Like apples, you can't peel or wash your way out of this one. Because pesticides need to be diluted before being added to crops, they're water soluble, says Campbell. Since celery has a high water content, the toxins are sucked directly into the stalk, making it virtually impossible to get around ingesting the pesticides unless you buy organic.
Sweet bell peppers
Similar to apples, bell peppers are also coated in food-grade wax, which seals in pesticides and toxins.
Peaches, strawberries, imported nectarines and domestic blueberries
Because these fruits are sweet, bugs (just like us) love to feast on them, which means they get a heavy dose of pesticides that can't be easily removed by washing or scrubbing. Case in point: Every single nectarine USDA tested had measurable pesticide residues, according to EWG.
As a category, grapes have more types of pesticides than any other fruit, with 64 different chemicals, according to EWG.
Spinach and lettuce
Seventy-eight different pesticides were found on lettuce samples, according to EWG. Since they're grown close to the ground, one might think that they experience a higher degree of pesticides to keep pests away, but the reality is that ground proximity does not make these foods significantly more vulnerable to insects and animals, according to Chuck Benbrook of the Organic Center.
"What matters is whether there is a skin or peel, and how tough that skin or peel is," Benbrook says. Like most other foods on the Dirty Dozen, spinach and lettuce do not have a peel, making them far more susceptible pesticides.
Cucumbers are coated in food-grade wax to keep them fresh. Like apples and red peppers, the wax encases any pesticides, making them difficult to remove.
To prevent potatoes from sprouting "eyes" or roots, farmers spray them with toxic compounds, such as lectins, and growth inhibitors, which slow down the growing process and keep potatoes from needing to be refrigerated during storage.
Green Beans and Kale
Green beans and the latest “it” food kale, are new additions to this year’s Dirty Dozen. The pesticides used on these crops are toxic to the nervous system. Even though they have been largely removed from agriculture over the past decade, according to EWG, they aren't banned.
"Organophosphate pesticides are of special concern since they are associated with neurodevelopmental effects in children,” said Congleton. “Infants in particular should avoid exposure to these pesticides since they are more susceptible to the effects of chemical insult than adults."
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