Lead, Mercury, Cadmium and Arsenic in the Environment

作者: Page AL.

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摘要: This book describes the extent of worldwide contamination by four important toxic elements: arsenic, cadmium, lead and mercury. It provides details on pathways rates at which these elements cycle in air, soils, through crops native ecosystems rivers, lakes oceans. New contributions are made oceanic atmospheric occurances areas long residence times (sinks) such as lake sediments, deep oceans forest humus layers. discusses sources estimates relative contribution to global regional cycling natural versus man-made sources. The need for a fuller understanding human populations particular high risk groups is emphasisd, example, exposure young children elderly females cadmium cetain Europe. Food humans discussed with emphasis upon acquatic based food chains, including fish shellfish. problms developing countries considered contrasted those industrialised world. recurring problems mercury coated grain uncontrolled pollution from smelters mining operations set against insidious distance distribution metals via polluted air masses. does not simply look what we already know, but identifies know order build models cycles confidence.

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