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. 2018 Mar 18;15(3):543. doi: 10.3390/ijerph15030543

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Cu, Zn, Mn, and Fe transport across soil column layers with respect to different values of bv: 0 bv; 0.25 bv; 0.5 bv; 1 bv; 2 bv; 5 bv; 19 bv—(a) Cu; (b) Zn; (c) Mn; (d) Fe.

Inline graphic — Cu, Zn, Mn, and Fe transport across soil column layers with respect to different values of bv: 0 bv; 0.25 bv; 0.5 bv; 1 bv; 2 bv; 5 bv; 19 bv—(a) Cu; (b) Zn; (c) Mn; (d) Fe.