Estimation of Some Heavy Metal Estimation at Sites of Saryug River as Lateral Tributary of the Ganga in Northern Bihar

Abstract

The Saryug river has been examined about water quality especially for heavy metal pollution by chromium (Cr), cadmium (Cd), zinc (Zn) and lead (Pb) at selected sites namely Siswan, Chapra and Dighwara during two years of study period. The estimated values were found either below or closed the permissible limit set by World Health Organization (WHO) except Cadmium. Cadmium concentration exceeded the WHO limit. This cadmium value in the river water of this area is a serious concern for human health. These heavy metals showed positive correlation with each other in both the years. The generated data may be useful to control the heavy metal pollution of the river at these sites which may even be deteriorating in near future. The present research indicates that the pollution level along the river Saryug is not very high but the increasing population load in the basin may cause long-term harm well masked by short term economic prosperity