Washing Removes Lead Contamination from Urban Greens

A study published in the Journal of Environmental Quality shows that washing lettuce grown in urban gardens can effectively remove most lead contamination. Cornell University researchers grew lettuce in an urban community garden in Brooklyn, New York, and in a rural field site in Ithaca, New York, with high and low levels of lead contamination. They tested rinsing with tap water, soaking in water, soaking in vinegar, or soaking in a commercial vegetable wash solution and found that all these wash methods effectively removed lead contamination from lettuce leaves.