Fig. 3 | Scientific Reports

Fig. 3

From: Integrated geochemical and geophysical assessment for monitoring soil stabilization with waste oyster shells

Fig. 3

Leaching concentrations and leaching ratios of Pb and Cu in soils immediately after test plot construction, including control soil and WOS-treated soils (WOS-P and WOS-G), using three extraction methods: TCLP, Mehlich-3, and DTPA. (a) Leached Pb concentration (mg/kg); (b) Pb leaching ratio (% of total content); (c) Leached Cu concentration (mg/kg); (d) Cu leaching ratio (% of total content). SPLP results are not presented as all values were below the instrumental detection limit of 0.1 mg/L for ICP-OES.

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