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Limitations on the availabilityof water resourcesareamong the greatest challenges facing modern society, despite the fact that roughly 70% of the earth’s surface is covered by water. Human society depends on liquid freshwater resources to meet drinking, sanitation and hy‐ giene, agriculture, and industry needs.Roughly 97% of the earth’s surface and shallow sub‐ surface water is saline and about 2% is frozen in glaciers and polar ice. The remaining 1% is liquid freshwater present to some extent as surface waterin lakes and streams but predomi‐ nantlyoccurring as groundwater in subsurface aquifers.Improved management of these lim‐ ited freshwater resources is. | CURRENT PERSPECTIVES IN CONTAMINANT HYDROLOGY AND WATER RESOURCES SUSTAINABILITY Edited by Paul M. Bradley Current Perspectives in Contaminant Hydrology and Water Resources Sustainability http dx.doi org 10.5772 47884 Edited by Paul M. Bradley Contributors Wei-Zu Gu Paul M. Bradley Prem B. Parajuli Ying Ouyang Matjaz Glavan Marina Pintar Rozalija Cvejic Matjaz Tratnik Luc Descroix Celeste Journey Karen Beaulieu Sakaris Arshad Ashraf Francis Chapelle Zulfiqar Ahmad Julia Barringer Pamela A. Reilly Published by InTech Janeza Trdine 9 51000 Rijeka Croatia Copyright 2013 InTech All chapters are Open Access distributed under the Creative Commons Attribution 3.0 license which allows users to download copy and build upon published articles even for commercial purposes as long as the author and publisher are properly credited which ensures maximum dissemination and a wider impact of our publications. After this work has been published by InTech authors have the right to republish it in whole or part in any publication of which they are the author and to make other personal use of the work. Any republication referencing or personal use of the work must explicitly identify the original source. Notice Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published chapters. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials instructions methods or ideas contained in the book. Publishing Process Manager Viktorija Zgela Technical Editor InTech DTP team Cover InTech Design team First published February 2013 Printed in Croatia A free online edition of this book is available at www.intechopen.com Additional hard copies can be obtained from orders@intechopen.com Current Perspectives in Contaminant Hydrology and Water Resources .
