1. Spatially Resolved Sulfur Speciation in Urban Soils.
- Author
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Brettholle, M., Gleber, S.-C., Mekiffer, B., Legnini, D., McNulty, I., Vogt, S., Wessolek, G., and Thieme, J.
- Subjects
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SULFUR , *CHEMICAL speciation , *URBAN soils , *X-ray microscopy , *X-ray absorption near edge structure , *ABSORPTION , *POTASSIUM - Abstract
A combination of x-ray microscopy, elemental mapping, and XANES spectroscopy at the K-absorption edge of sulfur was used to analyze the elemental and particulate composition of an urban soil loaded with building rubble from WWII, exemplarily from Berlin, Germany. This combination of element specific high-resolution microscopy with high spectral resolution capabilities allows for the determination of elemental composition as well as chemical speciation and is therefore well suited for the analysis of highly heterogeneous environmental samples. Different soil and debris constituents could be assigned to elemental distribution patterns within collected fluorescence maps, allowing for a detailed analysis of the sulfur pool and release from war debris in subsequent studies. A detailed understanding of this sulfur lixiviation is central to preserve urban water quality. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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