Q.I'm doing a whole-house remodel on an old home. It's the height of the gardening season, and the owners - knowing that many layers of lead-based paint had been scraped off the house over the years - asked me what I thought about planting tomatoes in the soil next to the south wall. Is there a danger that soil lead could be taken up into vegetables in dangerous quantities?A.Carl Rosen, a soil scientist at the University of Minnesota, responds: In general, plants do not take up large quantities of lead even when grown in soil with elevated lead levels; however,...

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