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BGS World Mineral Statistics, conversion rate: 0.022m3 = 20 gr

By-product By-product By-product By-product

BGS World Mineral Statistics, conversion rate: 0.022m3 = 20 gr

By-product By-product By-product By-product

Notes:

1 Aggregates and building stone production accounts for over 52 per cent of the net weight of all mined or quarried material. Published UN data only cover 22 countries who produce about 50 per cent the aggregates and building stones used.

2 Oil won from oil-bearing shales and sands is included in the net figure for production of petroleum, crude. However, oil from these sands and shale deposits requires additional materials movement of 22 times the net quantity of oil produced. Oil products produced from oil-bearing shales and sands by the major producing countries amounted to 17 857 thousand tons in 1994 (United States Bureau of Mines 1994).

Sources: Adapted from Douglas and Lawson (1997b); production figures, net weight (unless otherwise stated) from Department of Economic and Social Affairs, Statistical Division of the United Nations (1995).

Table 28A.2 Estimated total annual production and stockpiles of waste materials in the UK, by sector

Sector

Annual Remarks production MMT %

Stockpile Stockpile and disposal to landfill; region where available

Agriculture

Colliery spoil Slate

China Clay Quarrying Sewage sludge Dredged spoils

Power station ash Other

Total

80 19 Wet weight, housed livestock 19 5 Excludes overburden 7 2

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