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Later sections of the Proceedings give a background to the Conference organization and deliberations

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Natural Microporous Materials in Environmental Technology WHO International Programme on Chemical Safety a protein used today asThe natural microporous materials include several types of minerals such as zeolites, clay minerals, micas, Fe lMn oxides hydroxidesloxyhydroxides present in various geo logical environments and soil formations. Their crystal structure is characterised by the presence of intra crystal micropores (channels or interlayer void spaces) providing high microporosity surface area and distinguished physico chemical properties such as cata lytic and