Detecting lead hotspots in urban gardens requires different sampling strategies

The local food movement is gaining traction in cities across America, with urban gardens contributing a healthy source of fresh produce for local citizens as well as providing a social outlet for gardeners and creating open spaces for residents to enjoy. Urban gardening is not without risks, however. Many garden plots within cities were previously inhabited by residences or industrial buildings that disposed of toxic chemicals on site, creating potential health hazards from the use of lead in paint, gasoline and industrial activities.

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