Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F12%3A10127548" target="_blank" >RIV/00216208:11310/12:10127548 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.gexplo.2011.08.001" target="_blank" >http://dx.doi.org/10.1016/j.gexplo.2011.08.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.gexplo.2011.08.001" target="_blank" >10.1016/j.gexplo.2011.08.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)

Popis výsledku v původním jazyce

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 weregenerally 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 Pbin 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%, respective

Název v anglickém jazyce

Differences in the bioaccessibility of metals/metalloids in soils from mining and smelting areas (Copperbelt, Zambia)

Popis výsledku anglicky

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 weregenerally 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 Pbin 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%, respective

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F08%2F0321" target="_blank" >GA205/08/0321: Vliv těžby a úpravy rud na životní prostředí v provincii Copperbeltu v Zambii: Model cyklů těžkých kovů a síry v půdách, sedimentech, vodách a vegetaci</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Geochemical Exploration

ISSN

0375-6742

e-ISSN

—

Svazek periodika

113

Číslo periodika v rámci svazku

FEBRUARY

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

68-75

Kód UT WoS článku

000301086300008

EID výsledku v databázi Scopus

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