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Chioma, O.; Emmanuel, A.; Peter, A. Accumulation and Toxicological Risk Assessment of Cd, As, Pb, Hg, and Cu from Topsoils of School Playgrounds at Obio-Akpor LGA Rivers State Nigeria.
Int. J. Sci. World 2017,
5 (1), 38-46.
https://doi.org/10.14419/ijsw.v5i1.6710.