In most cases, nZVI alone did not affect shoot Cd, Pb and Zn concentrations, decreased root Pb concentrations, and showed an increasing trend in root Zn concentrations.
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Contribution of Nano-Zero-Valent Iron and Arbuscular Mycorrhizal Fungi to Phytoremediation of Heavy Metal-Contaminated Soil.
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The sentences
The root colonization rate was decreased by both nZVI, displaying a decreasing trend (S-nZVI: −19.4%~−38.6%, B-nZVI: −30%~−16%) with the increase in nZVI concentration.