Ecological Risk of Heavy Metals and a Metalloid in Agricultural Soils in Tarkwa, Ghana

Bortey-Sam, Nesta; Nakayama, Shouta M. M.; Akoto, Osei; Ikenaka, Yoshinori; Baidoo, Elvis; Mizukawa, Hazuki; Ishizuka, Mayumi

Ecological Risk of Heavy Metals and a Metalloid in Agricultural Soils in Tarkwa, Ghana

Bortey-Sam, Nesta; Nakayama, Shouta M. M.; Akoto, Osei et al.

International Journal of Environmental Research and Public Health, 2015, 12(9), 11448-11465

Permalink : https://hdl.handle.net/2115/60174

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アクセス権	open access
URI	https://hdl.handle.net/2115/60174
タイトル	Ecological Risk of Heavy Metals and a Metalloid in Agricultural Soils in Tarkwa, Ghana
著者	Bortey-Sam, Nesta ; Nakayama, Shouta M. M. ; Akoto, Osei ; Ikenaka, Yoshinori ; Baidoo, Elvis ; Mizukawa, Hazuki ; Ishizuka, Mayumi
著者名 Bortey-Sam, Nesta
e-Rad_Researcher 90647629 著者名 Nakayama, Shouta M. M.
著者名 Akoto, Osei
e-Rad_Researcher 40543509 著者名 Ikenaka, Yoshinori
著者名 Baidoo, Elvis
e-Rad_Researcher 60612661 著者名 Mizukawa, Hazuki
e-Rad_Researcher 50332474 著者名 Ishizuka, Mayumi
言語	英語
キーワード	heavy metals
	metalloid
	agricultural soil
	Tarkwa
	integrated pollution
	ecological risk
発行日	2015-09
出版者	MDPI
収録物名	International Journal of Environmental Research and Public Health
巻(号)	12(9)
ページ	11448-11465
抄録	Heavy metals and a metalloid in agricultural soils in 19 communities in Tarkwa were analyzed to assess the potential ecological risk. A total of 147 soil samples were collected in June, 2012 and analyzed for As, Cd, Co, Cr, Cu, Hg, Ni, Pb and Zn. Mean concentrations (mg/kg dw) of heavy metals in the communities decreased in order of Zn (39) ˃ Cr (21) ˃ Pb (7.2) ˃ Cu (6.2) ˃ As (4.4) ˃ Ni (3.7) ˃ Co (1.8) ˃ Hg (0.32) ˃ Cd (0.050). Correlations among heavy metals and soil properties indicated that soil organic matter could have substantial influence on the total contents of these metals in soil. From the results, integrated pollution (Cdeg) in some communities such as, Wangarakrom (11), Badukrom (13) and T-Tamso (17) indicated high pollution with toxic metals, especially from As and Hg. Potential ecological risk (RI) indices indicated low (Mile 7) to high risks (Wangarakrom; Badukrom) of metals. Based on pollution coefficient (C(i)f), Cdeg, monomial ecological risk (E(i)r) and RI, the investigated soils fall within low to high contamination and risk of heavy metals to the ecological system especially plants, soil invertebrates and/or mammalian wildlife. This represented moderate potential ecological risk in the study area, and mining activities have played a significant role.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
PISSN	1661-7827
EISSN	1660-4601
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/ijerph120911448