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The bioavailability of 22 heavy metals was investigated at 19 sampling sites in Tieguanyin tea garden in Anxi County, Fujian Province, southeastern China. Heavy metal concentrations were determined by inductively coupled plasma-mass spectrometry (ICP-MS) and evaluated by geo-accumulation index (Igeo). Dilute nitric acid extraction was used to evaluate biological activity. Cu, Pb, and Cd were highly...
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