Effects of nutrient and lime additions in mine site rehabilitation strategies on the accumulation of antimony and arsenic by native Australian plants

► The first investigation of Sb uptake in certain Australian native plants. ► As and Sb transfer from soil to upper plant parts was low (BF≪1). ► Nutrient and nutrient+lime additions increased As and Sb dissolution and plant accumulation. ► Plant species identified for Sb and As contaminated mine so...

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Bibliographic Details
Published in:	Journal of hazardous materials Vol. 261; pp. 801 - 807
Main Authors:	Wilson, Susan C., Leech, Calvin D., Butler, Leo, Lisle, Leanne, Ashley, Paul M., Lockwood, Peter V.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Kidlington Elsevier B.V 15-10-2013 Elsevier
Subjects:	Acacia - metabolism Antimony Antimony - metabolism Applied sciences Arsenic Arsenic - metabolism Australia Biodegradation, Environmental Calcium Compounds - pharmacology Contaminated soil Cynodon - metabolism Decontamination. Miscellaneous Eucalyptus - metabolism Exact sciences and technology Hazardous Waste Sites Mining Nitrogen - pharmacology Oxides - pharmacology Phosphorus - pharmacology Phytostabilisation Plant accumulation Plant Roots - metabolism Plant Shoots - metabolism Plant Stems - metabolism Poa - metabolism Pollution Potassium - pharmacology Soil and sediments pollution Soil Pollutants - metabolism Sulfur - pharmacology Australia Phytostabilisation Antimony Contaminated soil Arsenic Plant accumulation Plant leaf Soil pollution Mine soil
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Summary:	► The first investigation of Sb uptake in certain Australian native plants. ► As and Sb transfer from soil to upper plant parts was low (BF≪1). ► Nutrient and nutrient+lime additions increased As and Sb dissolution and plant accumulation. ► Plant species identified for Sb and As contaminated mine soil phytostabilisation. The effects of nutrient and lime additions on antimony (Sb) and arsenic (As) accumulation by native Australian and naturalised plants growing in two contaminated mine site soils (2735mgkg−1 and 4517mgkg−1 Sb; 826mgkg−1 and 1606 As mgkg−1) was investigated using a glasshouse pot experiment. The results indicated an increase in soil solution concentrations with nutrient addition in both soils and also with nutrient+lime addition for Sb in one soil. Metalloid concentrations in plant roots were significantly greater than concentrations in above ground plant parts. The metalloid transfer to above ground plant parts from the roots and from the soil was, however, low (ratio of leaf concentration/soil concentration≪1) for all species studied. Eucalyptus michaeliana was the most successful at colonisation with lowest metalloid transfer to above ground plant parts. Addition of nutrients and nutrients+lime to soils, in general, increased plant metalloid accumulation. Relative As accumulation was greater than that of Sb. All the plant species studied were suitable for consideration in the mine soil phytostabilisation strategies but lime additions should be limited and longer term trials also recommended.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0304-3894 1873-3336
DOI:	10.1016/j.jhazmat.2013.01.033