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Embryotoxicity of irradiated and nonirradiated automotive exhaust and carbon monoxide

Journal Article · · Environ. Res.; (United States)
;
This study was undertaken to compare the effects on chick embryogenesis of continuous exposure to dilute unreacted and photochemically reacted automotive exhaust with exposure to comparable levels of carbon monoxide. From Day 1 through 14 days of development, survival decreased almost equally in both exhaust groups but no gross anomalies were apparent in surviving embryos. An equivalent level of carbon monoxide had considerably less effect on survival than did exhaust and did not result in any gross anomalies. Exhaust and carbon monoxide exposure groups exhibited decreased embryonic weight, hematocrit, and feather formation and increased heart/body weight ratio, liver discoloration, and increased serum GPT activity. Carbon monoxide exposure resulted in increased spleen weight. Irradiated exhaust had a less pronounced effect than unreacted exhaust with respect to several parameters including serum enzymes. Differing effects of exposure to nonirradiated versus irradiated exhaust appear to be associated with components other than carbon monoxide. Cumulative effects of these components could explain the variations in biological response beteeen the two exhaust atmospheres.
Research Organization:
Environmental Protection Agency, Cincinnati
OSTI ID:
7085222
Journal Information:
Environ. Res.; (United States), Journal Name: Environ. Res.; (United States) Vol. 15:1; ISSN ENVRA
Country of Publication:
United States
Language:
English

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Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
ANIMALS
AUTOMOBILES
BIOLOGICAL EFFECTS
BIRDS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHICKENS
COMPARATIVE EVALUATIONS
EMBRYOS
ENZYMES
EXHAUST GASES
FOWL
GASEOUS WASTES
IRRADIATION
JUVENILES
MORPHOLOGICAL CHANGES
ONTOGENESIS
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL OXIDANTS
POLLUTION
RADIATIONS
SOLAR RADIATION
SURVIVAL TIME
TOXICITY
VEHICLES
VERTEBRATES
WASTES