Assessment of heavy metals contamination in water in Dong Mai craft village

Abstract

Industrialization, climate change and craft village production activities produce a variety of water pollutants in Vietnam. Classical multivariate statistical analysis was used to evaluate the characteristics of As, Cu, Zn, Pb contamination in water in Dong Mai village, Hung Yen province, by using the evaluation indicators such as the metal index (MI), the enrichment factor (EF), the potential ecological risk factor (ERF) and the potential ecological risk index (ERI). This research showed that the classical statiscal analysis was significant to identify contamination sources and origin. It was notabled that high loading of (As, Cu, Zn) and Pb in water in principal components (PC1 and PC2) with seasonal variations was indicative of both geogenic and anthropogenic pollution as primary sources in terms of MI and EF. The ERF and ERI of heavy metals in Dong Mai’s surface water as well as the ground water were at the low level (ERF<40 & ERI < 150). The result of the assessment highlights the need for a comprehensive and detailed study program on heavy metal content in the water resources in a wider area to identify the magnitude and details of the problem associated with heavy metal contamination for the development of a remediation plan and more effective pollution preventing measures.