Synopsis This book is an attempt to keep pace with continuing rapid developments in sampling and analytical techniques which are used for a wide array of chemical and Fossil Fuel environments together. The main aim of this book is to provide a useful manual for all environmentalists including students, engineers and agricultural scientists who are engaged actively in the field of environmental analytical investigations including those who are mainly concerned with pollution, fishery, ecology, agriculture, health and hygiene. The editing of this manual is based on the research and teaching experience of the authors who have been actively angaged in the different aspects of environmental since and conducting practical classes at all levels in different parts of the country. Their valuable experience has been carefully condensed in compiling this book. An attempt has been made to include the modern techniques of analysis which are mainly used these days. Chemical reactions and principles involved have been deliberately not included so as to avoid complexity of matter.