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… maintenance) and industrial sources, and the rural farming population. Collecting used oil from non-industrial …

… per cubic metre 1 Volume of demand Private gardens Organic farming Wine and fruits Other agricultural uses Greenhouses … Arsenic Chromium Landfill gases:Incineration fumes ... a (dry but) useful approach Particulate matters Dioxins Furans … 2 000 0 Milligram of specific heavy metal per kilogram of dry weight in samples 60 50 20 30 40 10 0 DELHI, India …