"Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)"@en . . . "2"^^ . "Kn\u00E9sl, Ilja" . . "Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)" . . "Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)" . "Zambia; Copperbelt; Arsenic; metals; topsoil; Bioaccessibility"@en . . "113" . "Journal of Geochemical Exploration" . . "http://dx.doi.org/10.1016/j.gexplo.2011.08.001" . "11310" . "Mihaljevi\u010D, Martin" . "I, P(GA205/08/0321), P(GAP210/12/1413), Z(MSM0021620855)" . . "5"^^ . "RIV/00216208:11310/12:10127548" . "K\u0159\u00EDbek, Bohdan" . "Majer, Vladim\u00EDr" . . "Differences in the total and bioaccessible concentrations of As and metals (Co, Cu, Pb, Zn) in topsoils (n = 107) from the mining and smelting areas in the Zambian Copperbelt were evaluated. The mean total concentrations of metals and As in topsoils were generally 2 to 7x higher in the smelting area, indicating significantly higher effect of smelter dust fallout on the degree of topsoil contamination. The contaminant bioaccessibility was tested by an US EPA-adopted in vitro method using a simulating gastric fluid containing a 0.4 M solution of glycine adjusted to pH 1.5 by HCl. Higher bioaccessibilities in the smelter area were observed for As and Pb, attaining 100% of the total metal/metalloid concentration. The maximum bioaccessibilities of As and Pb in the mining area were 84% and 81%, respectively. The ranges, mean and median bioaccessibilities of Co, Cu and Zn were similar for the two areas. The maximum bioaccessibilities of Co, Cu and Zn were 58-65%, 80-83% and 79-83%, respectively. The obtained data indicate that a severe health risk related to topsoil ingestion should be taken into account, especially in smelting areas."@en . . "Ettler, Vojt\u011Bch" . . . "RIV/00216208:11310/12:10127548!RIV13-GA0-11310___" . "Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)"@en . "8"^^ . . . . "FEBRUARY" . "[AB1EB80C7584]" . . . . . . "0375-6742" . . "10.1016/j.gexplo.2011.08.001" . . . "Differences in the total and bioaccessible concentrations of As and metals (Co, Cu, Pb, Zn) in topsoils (n = 107) from the mining and smelting areas in the Zambian Copperbelt were evaluated. The mean total concentrations of metals and As in topsoils were generally 2 to 7x higher in the smelting area, indicating significantly higher effect of smelter dust fallout on the degree of topsoil contamination. The contaminant bioaccessibility was tested by an US EPA-adopted in vitro method using a simulating gastric fluid containing a 0.4 M solution of glycine adjusted to pH 1.5 by HCl. Higher bioaccessibilities in the smelter area were observed for As and Pb, attaining 100% of the total metal/metalloid concentration. The maximum bioaccessibilities of As and Pb in the mining area were 84% and 81%, respectively. The ranges, mean and median bioaccessibilities of Co, Cu and Zn were similar for the two areas. The maximum bioaccessibilities of Co, Cu and Zn were 58-65%, 80-83% and 79-83%, respectively. The obtained data indicate that a severe health risk related to topsoil ingestion should be taken into account, especially in smelting areas." . . "NL - Nizozemsko" . . "000301086300008" . "131225" .