OLS : Record

RECORD NUMBER: 30 OF 484

Main Title

Air Pollution Assessment of Ethylene Dichloride.

Author

Johns., R.;

CORP Author

Mitre Corp., McLean, Va.;Environmental Protection Agency, Research Triangle Park, N.C. Office of Air Quality Planning and Standards.

Year Published

1976

Report Number

MTR-7164; EPA-68-02-1495;

Stock Number

PB-256 733

Subjects

Air pollution; Air pollution control; Waste disposal; Chemical industry; Industrial hygiene; Assessment; Toxicity; Physical properties; Chemical properties; Material handling; Chlorides; Physiological effects; Research; Concentration(Composition); Sources; Solvents; Effluents; Ventilation; Maintenance; Indoor air pollution; Ethylene/dichloro; Air pollution effects(Humans); Air pollution effects(Animals); Environmental chemical substitutes; Carcinogens; Stationary sources

Holdings

Library		Call Number	Additional Info	Location	Date Modified
NTIS		PB-256 733	Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.	NTIS	06/23/1988

Collation

41p

Abstract

Ethylene dichloride, a chlorinated hydrocarbon, is primarily used as an intermediate during the production of vinyl chloride and other commercially valuable compounds. The characteristic water solubility and vapor pressure of ethylene dichloride indicate that this compound will tend to presist in the hydrosphere and lithosphere; while its slow activity with peroxide radicals and ozone indicates atmospheric persistence as well. Industrial exposure is limited by Occupational Safety and Health regulations to 200 mg/cum (50 ppm). Ambient atmospheric measurements are not readily available. Inhalation of ethylene dichloride during acute exposure has been shown to produce central nervous system disorders as well as pathological effects in the liver, kidneys, and adrenals of humans, while chronic human exposure produces similar results. The no-lasting-effect level is quite high (1000 ppm for 1 hour and 3000 ppm for 6 minutes) indicating that detrimental exposure levels would have to be much greater. Although the compound does not appear to pose a significant environmental hazard, little information is available for assessment of potential long-term low level effects. As a result ethylene dichloride cannot be considered innocuous until additional health data is accumulated.

Supplementary Notes