Accession Number : AD0701283

Title :   UNTERSUCHUNGEN UEBER RAUMOZONISATOREN UND UEBER OZON-VORKOMMEN IN DER AUSSENLUFT UND IN INDUSTRIEBETRIEBEN (Investigations of the Room Ozonizers and of Ozone Occurrences in the Outer Atmosphere and Industrial plants,

Corporate Author : EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH (SWITZERLAND) INSTITUT FUER HYGIENE UND ARBEITSPHYSIOLOGIE

Personal Author(s) : Wanner,Von H. U. ; Gilgen,A.

Report Date : 1966

Pagination or Media Count : 15

Abstract : Ozone in concentrations above 0,05 ppm. causes headaches, nausea and respiratory troubles. On the basis of numerous toxicological investigations the MAC value (maximum allowable concentration) for ozone has been fixed temporarily at 0,05 ppm. The ozone concentrations measured in the atmosphere vary between 0,02 and 0,05 ppm. In industry generators, electrofilters and projection cameras have been shown to cause ozone concentrations from 0,04 to 0,1 ppm. Ozonizers bring about concentrations between 0,02 and 0,03 ppm. Although it is often recommended, the use of ozonizers in rooms is to be rejected as no evidence of favourable effects could be found for concentrations within the limits of human tolerance; in addition, an increase in the ozone concentration is not perceivable and therefore health may be negatively affected. (Author)

Descriptors :   (*ATMOSPHERES, OZONE), (*INDUSTRIAL PLANTS, *OZONE), TOXICITY, DOSAGE, TOLERANCES(PHYSIOLOGY), RESPIRATORY SYSTEM, ULTRAVIOLET RADIATION, ELECTRIC DISCHARGES

Subject Categories : Flight Control and Instrumentation
      Environmental Health and Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE