Contribution to the hygienic assessment of atmospheric ozone
The concentration of atmospheric ozone in Moscow in autumn and winter of 1965 and 1966 and in spring of 1967 amounted to 0.065 mg/mT and in Riga in spring and summer months of 1966 it oscillated in the limits of 0.01 to 0.093 mg/mT. The threshold value of the smell of ozone for the most sensitive persons attained 0.015 mg/mT, the subthreshold concentration equaled 0.01 mg/mT. The threshold value of the reflex action of ozone on the electric activity of the cerebral cortex amounted to 0.01 mg/mT, the subthreshold value equaled 0.005 mg/mT. A 24-hour chronic poisoning with ozone at a concentration of 0.11 mg/mT for a period of 93 days produced in experimental rats weight decrease, an inhibition of the blood cholinesterase activity, a decrease of oxygen consumption rate, a rise of 17-ketosteroids content in the urine, a fall in ascorbic acid content of the suprarenal glands. Ozone at concentrations of 0.02 and 0.005 mg/mT proved to be ineffective.
- Research Organization:
- Central Graduate Medical Institute, Moscow, USSR
- OSTI ID:
- 6228220
- Journal Information:
- Hyg. Sanit.; (United States), Vol. 33:1-3; Other Information: Translated from Gig. Sanit
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
OZONE
ECOLOGICAL CONCENTRATION
TOXICITY
AIR POLLUTION
ASCORBIC ACID
BRAIN
ENZYME ACTIVITY
ESTERASES
KIDNEYS
MAXIMUM PERMISSIBLE CONCENTRATION
OXYGEN
RATS
SEASONAL VARIATIONS
URINARY KETOSTEROIDS
USSR
ANIMALS
ASIA
BODY
CENTRAL NERVOUS SYSTEM
EASTERN EUROPE
ELEMENTS
ENZYMES
EUROPE
HYDROLASES
MAMMALS
NERVOUS SYSTEM
NONMETALS
ORGANS
POLLUTION
RODENTS
SAFETY STANDARDS
STANDARDS
VARIATIONS
VERTEBRATES
VITAMINS
560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)