According to The Hill, the Environmental Working Group (EWG) has found that approximately 70 percent of produce in the U.S. still has pesticide residue after being washed.
The analysis found that kale, spinach, and strawberries have the highest residue levels while avocados, pineapples, and sweetcorn had the lowest levels of residue.
Over 90 percent of strawberries, apples, cherries, spinach, nectarines, and kale samples tested positive for pesticides. More than 92 percent of conventionally grown kale samples had at least two pesticide residues. Some forms of kale contained residues from 18 different pesticides.
“We were surprised kale had so many pesticides on it, but the test results were unequivocal,” EWG toxicologist Alexis Temkin said. “Fruits and vegetables are an important part of everyone’s diet, and when it comes to some conventionally grown produce items, such as kale, choosing organic may be a better option.”
Among kale samples, nearly 60 percent tested positive for Dacthal, or DCPA, which is a possible carcinogen. DCPA was banned in the European Union for crop use in 2009.