Groundwater Heavy Metal Contamination. A GIS-based Study in Dhemaji District of Assam, India

      Аннотация: This book provides an overview of the current state of knowledge on the occurrences and distribution of heavy metals viz. iron, lead, arsenic, cadmium, alluminium, copper, nickel, manganese, zinc and chromium problems in water supplies in Dhemaji district of Assam, India. This book is an attempt to address the groundwater contamination of heavy metals in a regional context. A comprehensive analytical, statistical and spatial distribution of heavy metals in ground water in the study area has been presented in this book using SPSS® statistical package (Window Version 10.0) and curve fitting method in arc view GIS software. GIS database helps in decision-making process by identifying the most sensitive zones that need immediate attention. The concentration of studied heavy metals in the water sources of the area is beyond the permissible limits of WHO. The immediate involvement of the research community is needed to combat the slow-onset disaster. It is hoped that the book can be used as a reference while carrying out regional scale studies of ground water quality in near future.

Ключевые слова: AAS, Assam, contamination, GIS, Groundwater, Heavy metal, India, Dhemaji