This book is structured as per Chemistry and Environment course of DIT University Dehradun. The main objective was to provide the basic understanding of chemistry of environment by covering fundamental topics. The topics covered in the book include the chemical composition of atmosphere water quality parameters conventional and non-conventional energy sources and introduction to eco - friendly products and techniques. Special Features: Covers fundamentals topics on chemistry and environment such asChemical composition of atmosphere.Water quality parameters.Conventional and non-conventional energy sources.Table of Content Composition of the AtmosphereChemical Composition and Reactions of TroposphereOzone Depletion