This book consolidates much of what is known about the geochemistry of arsenic and provides new information on relationships between high concentrations of arsenic in ground water and geochemical environments. The subject matter of this book ranges in scope from molecular-scale geochemical processes that affect the mobility of arsenic in ground water, to arsenic contaminated ground water at the national scale. Chapters were contributed by an international group of research scientists from a broad range of backgrounds.

Synthesizes existing information on the ecology, diversity, human uses & research needs of the Middle Rio Grande Basin of New Mexico. Begins with a review of the environmental history & human cultures of the basin, followed by an analysis of the influences & problems of climate & water. Also focuses on ecological processes, environmental changes & management problems. Each chapter identifies studies that can supply information to mitigate environmental problems, rehabilitate ecosystems, & sustain them in light of human values & needs.