Antimony and Arsenic Isotope Distribution in a Semi-Arid Creek During the Wet Season
作者： Marcia Baeza , Jianhong Ren , Sushma Krishnamurthy , Thomas C. Vaughan
DOI: 10.1007/978-94-007-7122-2_8
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摘要: Previous studies found elevated metal concentrations in Manadas Creek. In this study, samples were collected from six sites along the creek during wet period of 2008 and analyzed for dissolved total isotopes water sediments. Results compared with those obtained a dry period. It was that 75As concentration typically lowest following major rain event. A similar trend observed antimony (Sb) at two sites, close to decommissioned Sb smelter. Mann-Whitney test indicates significant differences medians sediment between seasons most 121Sb sampled. The enrichment factors (EFs) calculated As low (close 1); however, they up 1,530.9 1,519.1 123Sb, respectively. Cluster analysis grouped 208Pb, 118Sn, 66Zn, 137Ba, or 55Mn, 60Ni depending on sampled; both not any other metals. Pearson correlation only indicated strong properties. Significant metals one site. Most correlations 121Sb/123Sb poor. These results contribute understanding seasonal variations contamination semi-arid creek.
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