Establishing geochemical background variation and threshold values for 59 elements in Australian surface soil

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• 作者：Clemens Reimann^a ; ^{clemens.reimann@ngu.no} ; Patrice de Caritat^b ; ^c
• 关键词：National Geochemical Survey of Australia ; Geochemical background ; Geochemical threshold ; Outliers ; Aqua regia ; Continental scale
• 刊名：Science of The Total Environment
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：578
• 期：Complete
• 页码：633-648
• 全文大小：4490 K
• 卷排序：578

文摘

Aqua regia concentrations for 59 elements in Australian surface soil presented. Terminology and methods to determine background and threshold discussed. Very few samples exceed Western Australian ‘ecological investigation levels’. No major diffuse contamination of Australian soil by PTEs at continental scale Few outliers mostly reflect geology, minor contamination or mineral potential.