title: [Hygienic assessment of metal-lurgical slag crushed stone for its use in road-building].
abstract: The increasing amount of industrial waste generates a need for its use as recycled materials. The paper presents the results of hygienic assessment of metallurgic slag crushed stone to be added to natural materials in highway building. The research program has included the measurement of content of water-soluble forms of metals, the evaluation of the acute toxicity of waste after oral administration to mice and rats, the study of the toxicity of waste by biotesting and the activity of natural radionuclides. The slag crushed stone virtually lacks water-soluble elements when it contains a high level of bulk forms of metals. According to acute toxicity for warm-blooded animals, the slag crushed stone belongs to Hazard Class IV by GOST 12.1.007-76 (low hazard substances). The biotesting on hydrocoles, the slag crushed stone is also referred to as Class IV (low hazard substances). In terms of the level of natural radionuclides, the slag crushed stone poses no hazard to the environment. The performed studies give grounds to recommend metallurgical slag crushed stone to be added to natural materials for highway building.
authors.forename: Iu P
authors.initials: IuP
authors.lastname: Tikhomirov
authors.forename: V P
authors.initials: VP
authors.lastname: Ippolitova
authors.forename: M E
authors.initials: ME
authors.lastname: Bezrokov
mesh_terms: D000818:Animals; D003252:Construction Materials / Q000009:adverse effects / Q000032:analysis*; D004195:Disease Models, Animal; D006920:Hygiene / Q000592:standards*; D007220:Industrial Waste / Q000009:adverse effects / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D051379:Mice; D009784:Occupational Diseases / Q000139:chemically induced / Q000175:diagnosis*; D016273:Occupational Exposure / Q000009:adverse effects / Q000032:analysis*; D051381:Rats; D014186:Transportation
chemical_list: D007220:Industrial Waste; D019216:Metals, Heavy