According to the Environmental Working Group's 2026 Shopper's Guide, the "Dirty Dozen" includes spinach, kale, collard & mustard greens, strawberries, grapes, nectarines, peaches, cherries, apples, blueberries, pears, potatoes, & blackberries. These items appear because they show "detectable" pesticide residues in USDA & FDA testing—not because they exceed safety limits. Here's why they are not "dirty": Modern analytical instruments detect parts per trillion—the equivalent of 1 second in 32,000 years, or 1 drop in 20 Olympic swimming pools. The EWG represents itself as a science-based watchdog, but scientists, toxicologists & dermatologists criticize its methods for ignoring fundamental toxicology principles—especially dose vs. hazard. Philippus Aurelius Theophrastus Bombastus von Hohenheim (thankfully shortened to Paracelsus), who lived 1493-1541, famously wrote the core toxicology principle: "All things are poison, and nothing is without poison; only the dose makes a thing a poison," or in Latin, "Sola dosis facit venenum."
This is something we are all taught in the beginning of our chemistry/toxicology classes & is something the EWG regretfully has never learned. A survey of 937 toxicologists overwhelmingly says EWG overstates chemical dangers. Detection does not equal danger. Toxicology doesn't care about how many substances are present; it cares about dose. EWG has no meaningful mention of dose in any of their listings, except for one: spinach. The pesticide dose reference on spinach comes from a 2016 USDA report. But the report also said that more than 99% of the samples were below permitted limits—and those limits already have a 100-fold safety margin built in. Hardly cause for hysteria. Consumers wash, peel, or cook many of these items, reducing residues even more. Without pesticides, crops would face fungal toxins (which are dangerous at low doses), insect damage, yield loss, even higher food prices, & more food waste.
A great deal of attention is paid to the safety of pesticides, & they are carefully regulated. The EWG is secretly an organic industry cheerleader. But organic foods also allow pesticides, so long as they are natural. But natural does not guarantee safety. The most natural substances known to mankind are also some of the most dangerous. In the end, the Dirty Dozen list amounts to no more than a ploy to raise funds. The financial disclosure of EWG's 2024 returns shows them with an annual revenue of USD $21.7 million, so someone is giving them a bunch of money. Gee, I wonder who takes glee in the phony scare tactics—the organic food industry. That's who.
