You may also consider the factual history of the apartment building in Japan that was mistakenly constructed with some highly radioactive material, the inclusion of the radioactive construction material was not discovered until many years later, the residents were studied extensively for evidence of increased cancer.

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Based in Dallas, Texas, Eagle is a manufacturer and distributor of building material and construction products like cement, gypsum wallboard, recycled paperboard, and concrete and aggregates.

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But in the US, construction waste accounts for 50 per cent of all landfill material, according to the Construction Materials Recycling Association.

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The other machine loaded shattered pieces of furniture and construction material into a huge waste container.

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But participants fell short in their efforts to require more information and consent among nations trading in a construction material, Chrysotile asbestos, and a formulation of the powerful herbicide, Paraquat, despite support from most of the 169 nations represented at the two-week U.N. summit.

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Nanotech also allows for "green manufacturing"--manufacturing processes that can take place at ordinary temperatures, reducing energy costs, while the use of non-toxic catalysts minimize pollution and bottom-up construction leaves no wasted material behind.

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One big seller: the coal-derived carbon material that is used in the smelting of aluminum, which in turn is in strong demand in the airplane and construction industries.

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Police also arrested three officers of the municipal agency that clears construction projects in the area, one police official, a building-material supplier, a local politician and a mediator who worked for the builders, Mr. Ballal said.

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