Waste glorious waste.Building construction is not only a big waste producer; it's a hungry mouth gaping for recycled goods. The recently built Waterloo Region Green Home included hundreds of kilograms of ground-up newspapers for insulation, a roof of recycled steel, old floor boards taken from a Seagram's warehouse, flooring tiles made from recycled glass, crushed recycled glass for foundation drainage, and recycled paint. The house was built along with nine others under the federally sponsored Advanced Houses Program (AHP AHP Assistant House Physician. ) as an energy conservation project -- utility costs are $748 a year compared with $1,977 for a conventional, gas-heated house. The program manager pointed out that a new house normally produces 2.5 tonnes of waste that has to be sent to landfill sites landfill site n → vertedero landfill site n → centre m d'enfouissement des déchets landfill site land n . Conserving materials and using recycled products can reduce the construction industry's environmental impact dramatically. For example, the Environhome in Bedford, N.S. contains 9,174 kilos of recycled material, including 7,026 kilos of recycled newsprint newsprint low grade paper used for newspapers. Old newspapers are fed to cattle as an alternative roughage and may occasionally be ingested by dogs. Significant amounts of lead are accumulated in tissues; no cases of poisoning have been recorded in cattle, though it has been used as insulation and in drywall, 1,500 kilos of ash mixed in poured concrete, and 193 kilos of dust and sawdust sawdust used as litter for chickens and bedding for horses. Sawdust made from treated timber may cause pentachlorophenol and other wood preservative poisoning. Fungi growing in sawdust litter in poultry houses may cause poisoning in the birds. used in the hardboard hardboard: see composition board. siding. |
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