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The unsaturated zone is the medium through which pollutants move from the soil surface to groundwater. Polluting substances are subjected to complex physical, chemical and biological transformations while moving through the unsaturated zone and their displacement depends on the transport properties of the water-air porous medium system. Pollution caused by human activities, agriculture, and industry, has brought about a growing interest in the role of the unsaturated zone in groundwater pollution. Due to the complexity and the multidisciplinary nature of the subject, it is being investigated by specialists from various scientific disciplines, such as soil physicists, chemists, biologists, an...
The understanding of pollutant transformations, sorption and transport in soils and uptake by plants is the key to controlling contaminant movement towards groundwater and accumulation in food-chains. Some of these major processes were discussed in the first International Workshop on Pollutants in Porous Media, con vened in Israel in 1983 (pollutants in Porous Media, Eds. Yaron, Dagan and Goldshmid, Springer-Verlag, 1984). Since that meeting, research on contaminant impact on the environment expanded considerably. New mechanisms explaining inorganic pollutant par titioning between solid and solution phases in soils were proposed and tested; specific elements and specific reactions were inves...
Includes entries for maps and atlases.
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Vols. for 1975- include publications cataloged by the Research Libraries of the New York Public Library with additional entries from the Library of Congress MARC tapes.
A union list of serials commencing publication after Dec. 31, 1949.
Colloquial Hebrew provides a step-by-step course in Hebrew as it is written and spoken today. Combining a user-friendly approach with a thorough treatment of the language, it equips learners with the essential skills needed to communicate confidently and effectively in Hebrew in a broad range of situations. No prior knowledge of the language is required. Key features include: • progressive coverage of speaking, listening, reading and writing skills • structured, jargon-free explanations of grammar • an extensive range of focused and stimulating exercises • realistic and entertaining dialogues covering a broad variety of scenarios • useful vocabulary lists throughout the text • ad...