Assessment of the bioavailability of metals and As from acidified multi-contaminated soils by lupin plants
One of the most important factors for a successful phytostabilizarion is the monitoring of the pollutant bioavailability in the soil. For this purpose, a suitable technique is necessary. The aim of this work was to determine the best-suited method for assessing the bioavailability of heavy metals together with As in the Aznalcollar spill affected area, by means of a systematic comparison among different extraction methods (AB-DTPA, CaCl<,2>, NANO<,3>, BCR,(NH<4,>)2SO <,4> and rhizo). AB-DTPA and the first step of BCR method were unsuitable for assessing the bioavaiiability of heavy metals and As to plants for acidic soils. CaCl<,2>-extractable As, Cu and Zn and NaNO<,3>-extractable As and Zn was well correlated with their concentrations in plant organs. Rhizo and (NH<,4>)SO<,4>, with the highest determination coefficients, were the most recommendable simple extraction methods to assess the bioavailability of As, Cu, Fe, Mn, and Zn in acidified multi- contaminated soils using white lupin as excluder model plant.
bioavailability heavy metals arsenic extraction methods acidified soils Aznalcollar
S Vazquez E Moreno RO Carpena
Department of Agricultural Chemistry. Facultad de Ciencias. Universidad Autonoma de Madrid. Ctra. Co Department of Agricultural Chemistry. Facultad de Ciencias. Universidad Autonoma de Madrid. Ctra. Co
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
883-884
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）