Evaluation of Zinc Contamination in the Sediments of Canon River Mouth, Taiwan

Chiu Wen Chen; Chih Feng Chen; Cheng Di Dong

doi:10.4028/www.scientific.net/AMR.468-471.1767

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 468-471Evaluation of Zinc Contamination in the Sediments...

Evaluation of Zinc Contamination in the Sediments of Canon River Mouth, Taiwan

Abstract:

This study was conducted using the data collected at the mouth of Canon River to investigate and analyze zinc (Zn) contained in the sediments, and to evaluate the accumulation of Zn and the degree of its potential risk. The results show that samples collected at all monitoring stations near the mouth of Canon River contain 358–3,365 mg/kg of Zn with average of 1,878±1,015 mg/kg. The spatial distribution of Zn reveals that the Zn concentration is relatively high in the river mouth region, and gradually diminishes toward the harbor region. This indicates that upstream industrial and municipal wastewater discharges along the river bank are major sources of pollution. The enrichment factor (EF) and geo-accumulation index (Igeo) indicate that the sedimentation at Canon River mouth has the moderately severe to extremely severe degree accumulation and moderate to very strongly accumulation of Zn. However, the potential ecological risk index indicates that the sedimentation at Canon River mouth has the low to moderate ecological potential risk.