Figure 1
Cross-sectional µ-XRF of leek roots collected from the vegetable garden near the Pb–Zn mine and cultivated with 500 mg L−1 PbNO3 solutions for three weeks, showing spatial distributions of Pb, Cu, Mn, Cr, Ti, Fe, Zn, K and Ca. The color corresponds to the fluorescence count of each element. (All the values in the graph have to be multiplied by 10−3.) |