[A hygienic basis for dosing the injection of coal flotation wastes into the soil as a fertilizer].
Hygienic regulations for the use of coal flotation wastes (CFW) as fertilizers were substantiated by studying the laws of migration of harmful ingredients of CFW from the fertilized soil to the contacting media. The safe doze of CFW to be used as a fertilizer was determined to be 3 g per 1 kg of soil (10 t/ha).