tailieunhanh - The Essential OF HANDBOOK GROUND-WATER SAMPLING

Difficulty in accessing ground water without disturbing ground-water flow patterns, chemistry, microbiology, and the physical and chemical makeup of formation materials has made accurate characterization of in situ ground-water conditions a very challenging task. Ground-water monitoring and sampling methodologies have evolved significantly over the past few decades as we have learned more about the mechanics of subsurface processes (particularly contaminant fate and transport processes), the impacts that traditional sampling efforts have on these processes, and the detrimental effects that many commonly used sampling protocols have on sample integrity and data quality. Tremendous improvements in field and laboratory analytical technologies and methods have paralleled developments in the ground-water industry | The Essential HANDBOOK GROUND-WATER SAMPLING DAVID M. NIELSEN GILLIAN L. NIELSEN rfic CRC Press M J Taylor Francis Group Boca Raton London New York CRC Press is an imprint of the Taylor Francis Group an informa business 2007 by Taylor Francis Group LLC This material was previously published in Practical Handbook of Environmental Site Characterization and Ground-Water Monitoring 2nd Edition CRC Press LLC 2005 CRC Press Taylor Francis Group 6000 Broken Sound Parkway NW Suite 300 Boca Raton FL 33487-2742 2007 by Taylor Francis Group LLC CRC Press is an imprint of Taylor Francis Group an Informa business No claim to original . Government works Printed in the United States of America on acid-free paper 10 9 8 7 6 5 4 3 2 1 International Standard Book Number-10 1-4200-4278-5 Softcover International Standard Book Number-13 978-1-4200-4278-8 Softcover This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission and sources are indicated. A wide variety of references are listed. Reasonable efforts have been made to publish reliable data and information but the author and the publisher cannot assume responsibility for the validity of all materials or for the consequences of their use. No part of this book may be reprinted reproduced transmitted or utilized in any form by any electronic mechanical or other means now known or hereafter invented including photocopying microfilming and recording or in any information storage or retrieval system without written permission from the publishers. For permission to photocopy or use material electronically from this work please access http or contact the Copyright Clearance Center Inc. CCC 222 Rosewood Drive Danvers MA 01923 978-750-8400. CCC is a not-for-profit organization that provides licenses and registration for a variety of users. For organizations that have been granted a photocopy license by the CCC a separate system of .