Antimony (Sb) is a naturally occurring element in environmental media, and it also releases to the environment from anthropogenic sources such as mining and processing of ores and the production of alloys (CEPA, 1997). Concentrations of antimony are generally less than 1 μg L−1 in unpolluted water (Filella et al., 2002). A range of 0.1–27 μg L−1 for antimony was detected in Korean four main rivers in the years 2004–2005 (An et al., 2008).