Evaluation of Chromium Contamination in the Surface Sediments of Canon River Estuary, Taiwan

Chiu Wen Chen; Chih Feng Chen; Cheng Di Dong

doi:10.4028/www.scientific.net/AMR.550-553.2117

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Evaluation of Chromium Contamination in the Surface Sediments of Canon River Estuary, Taiwan

Abstract:

This study was conducted using the data collected at the Canon River estuary, Taiwan to investigate and analyze Chromium (Cr) contained in the sediments, and to evaluate the enrichment and accumulation of Cr. Results of laboratory analyses show that concentrations of Cr in the sediments are between 27 and 192 mg/kg with an average of 111±52 mg/kg. The spatial distribution of Cr reveals is relatively high in the boundary of the river estuary region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. Results from the enrichment factor and geo-accumulation index analyses imply that the sediments collected from the river estuary can be characterized between no enrichment to moderate degree enrichment and between none to medium accumulation of Cr, respectively. Base on the comparison with sediment quality guidelines, the sediments Cr concentrations may cause acute biological damage. The results can provide regulatory valuable information to be referenced for developing future strategies to renovate and manage river estuary and harbor.