Credit: Craig Stokle, Brooklyn College
View of the community garden where the study was based in Brooklyn, New York City. The study focused on lettuce, which was grown in soils containing either high or low levels of lead. The researchers tested different washing strategies: rinsing with tap water, soaking in water, soaking in vinegar, or soaking in a commercial vegetable wash solution. All washing methods removed contaminated soil and made the lettuce safe for consumption.