Abstract
Three studies into metals in U.K. urban soils are reviewed and metal intake into home-grown vegetable and salad crops discussed. A survey of 5,300 urban gardens in 53 locations in England, Wales and Scotland confirmed widespread metal contamination. Lead in garden soils increased with the age of property. Lead in radish and lettuce increased with soil content, though lead intake into lettuce was shown to be derived more from aerial deposition than from uptake from the soil. Normal washing removed most of the contaminating lead from lettuce. High concentrations of arsenic in garden soils in an old mining area in south-west England were reflected to only a minor degree in the edible tissues of garden crops. Health implications are discussed.
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