Atmospheric Chemistry provides readers with a basic knowledge of the chemistry of Earth's atmosphere, and an understanding of the role that chemical transformations play in this vital part of our environment. The composition of the 'natural' atmosphere (troposphere, stratosphere and mesosphere) is described in terms of the physical and chemical cycles that govern the behaviour of the major and the many minor species present, and of the atmospheric lifetimes of those species. An extension of these ideas leads to a discussion of the impacts of Man's activities on the atmosphere, and to an understanding of some of the most important environmental issues of our time. One thread of the book explains how living organisms alter the composition and pressures in the atmosphere, modify temperatures, and change the intensity and wavelength-distribution of light arriving from the Sun. Meanwhile, the living organisms on Earth have depended on these very same environmental conditions being satisfactory for the maintenance and evolution of life. There thus appear to be two-way interactions between life and the atmosphere. Man, just one species of living organism, has developed an unfortunate ability to interfere with the feedbacks that seem to have maintained the atmosphere to be supportive of surface life for more than 3.5 billion years. This book will help chemists to understand the background to the problems that arise from such interference. The structure of the book and the development of the subject deviate somewhat from those usually encountered. Important and recurring concepts are presented in outline first, before more detailed discussions of the atmospheric behaviour of specific chemical species. Examples of such themes are the sources and sinks of trace gases, and their budgets and lifetimes. That is, the emphasis is initially on the principles of the subject, with the finer points emerging at later points in the book, sometimes in several successive chapters. In this way, some of the core material gets repeated exposure, but in new ways and in new contexts. The book is written at a level that makes it accessible to undergraduate chemists, and in a manner that should make it interesting to them. However, the material presented forms a solid base for those who are extending their studies to a higher level, and it will also provide non-specialists with the background to an understanding of Man's several and varied threats to the atmosphere. Well-informed citizens can then better assess measures proposed to prevent or alleviate the potential damage, and policy makers more realistically formulate the necessary controls on a sound scientific foundation.

Photochemistry is the study of the interaction of light with matter. This Primer describes the chemistry that follows the absorption of light, and explains the extraordinary influence of visible or ultraviolet light on chemical behaviour. After the absorption of light, a molecule may acquire completely different properties from those of its parent. The authors explain the role of light initiating this metamorphosis, the dependence of natural processes such as photosynthesis on photochemistry, the emission of radiation as fluorescence and phosphoresence, and current applications of photochemistry, which include photography, photopolymerization, photodegradable polymers, and the synthesis of organic chemicals. This book is an essential introduction to the intriguing field of photochemistry.

This book explains the chemistry that occurs in the atmospheres of Earth, the planets, and some satellites. Although written from the perspective of physical chemistry, it makes unusually strong links to the underlying physics, geology, and, on Earth, biology that determine the chemical composition of an atmosphere and its behaviour. Chemistry in the Earth's troposphere and stratosphere are explored, as are the phenomenon of airglow in the mesosphere and the properties of the ionosphere. The impacts of man's activities on, for example, the depletion of stratospheric ozone or the pollution of the urban environment are given due weight.

Modern chemical experiments rely heavily on electronic instrumentation; some techniques in common use owe their existence to electronics. Yet undegraduates reading chemistry often have only the most rudimentary understanding of the way in which electronics and allied disciplines have provided powerful tools that enable creative experimentation to be performed. This book aims to provide an understanding of some of the basic techniques that are harnessed for the benefit of chemists.