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. 2013 May 7;8(5):e61932. doi: 10.1371/journal.pone.0061932

Figure 1. Amount of metallic trace elements (As, Cd, Cu, Ni, Pb and Zn) in shoots of H. incana.

Figure 1

Plants were collected from different zones in a heavy metal-polluted area. Data are the average (± SE) of six independent measurements. Amount (average ± SE) of metallic trace elements in the soil (mg/Kg): As = 298±80; Cd = 10±4; Cu = 459±88; Ni = 13±6, Pb = 7157±746; Zn = 14164±1460.