Working conditions for fly ash workers and radiological consequences of living in a fly ash house

The subject is treated under the headings: introduction; working conditions for fly ash workers (concentrations of toxic elements in fly ash in relation to Maximum Acceptable Concentration in the air in working conditions; concentration of toxic elements in fly ash in relation to drinking water limits; the silicosis danger; mutagenic and carcinogenic properties; radiation dose due to inhalation of fly ash; synergistic effects); the radiological consequences of living in a fly ash house (gamma dose calculations on a house of normal building materials in the area of Arnhem-Nijmegen; the influence of fly ash produced in Nijmegen; radon daughter doses in the Netherlands at present; limits on radioactivity of building materials). (U.K.)