Organization of the Material

As its title would suggest, Pollution A to Z is organized alphabetically with 267 articles presented in two volumes. Articles are cross-referenced. Authors were aware of (and sometimes wrote) related articles and, for the fullest understanding, the reader is encouraged to explore at least one level beyond the subject first selected. This is made easier with the inclusion of cross-references at the end of many articles. You will find that articles are balanced between hard science and social science. You can research the contaminants that pollute a river, learn the health impacts of the pollution, and then trace society's response, from activism through the political process required to enact legislation to the enforcement that ultimately slows or reverses the pollution.

Each entry has been commissioned especially for this work. Our contributors are drawn primarily from the ranks of academia and government, each chosen for his or her particular experience and expertise. Who better, for instance, to write about the first Earth Day than Denis Hayes, the man who organized it. Equally important, our authors were chosen for having the

uncommon ability to make their knowledge accessible to advanced high school students and university undergraduates. We also provide a glossary in the back matter of each volume, summarizing the definitions of teh terms in the margins throughout the set.

The two volumes are richly illustrated with charts, tables, maps, and line drawings. Each, along with the many photographs, was selected to amplify the text it accompanies. Historic photographs such as the one taken at noon during Donora, Pennsylvania's, killer smog are especially important; they convey far more about the state of our environment at its nadir than any words could. Finally, articles include selected lists of additional resources. The lists focus on materials that students can reasonably expect to locate, and each contains at least one Internet reference.

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