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… AUTHORS Loretta Y. Li, Professor Department of Civil Engineering University of British Columbia, Canada E-mail: … of increasing human dependence on organic chemicals. The chemical burdens, partly highlighted by persistent organic … (POPs) and other products and by-products of the emergent "chemical society," have become potent sources of …

… is also sacred. The decline of vultures in India due to chemical poisoning34 is a problem for Parsi communities, … the Royal Society of London A: Mathematical, Physical and Engineering Sciences, 369: 1010-1035. 6 van den Broecke, M. … include erosion, sealing and crusting, and compaction. Chemical degradation: processes leading to soil chemical …

… and their biotic environment, as well as the physical and chemical interactions within the environment. Principle 6 – … by wind and/or water; (ii) deterioration of the physical, chemical and biological or economic properties of soil; and … mining, quarrying, road construction, house building and engineering construction. Soil fertility decline• : loss of …