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Eighty samples of sandy substrate were collected in November 2002 and 2003, from 20 municipal playgrounds in Madrid (Spain) to assess the potential adverse health effects of the exposure of children to trace elements in this material during their games. In each playground, two 500g samples were collected, dried at 45°C for 48h, sieved below 100μm, acid digested and analyzed by ICP-MS. Doses contacted...
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