Record Display for the EPA National Library Catalog

RECORD NUMBER: 234 OF 238

OLS Field Name OLS Field Data
Main Title Validation of Human Eye Irritation by Tear Lysozyme Levels.
Author Pietsc, Richard L. ;
CORP Author Duke Univ., Durham, N.C.
Year Published 1972
Report Number EPA-68-02-0096; 1362;
Stock Number PB-224 537
Additional Subjects ( Air pollution ; Eye injuries) ; ( Eye injuries ; Smog) ; ( Body fluids ; Eye(Anatomy)) ; Ophthalmology ; Experimental data ; Questionnaires ; Muramidase ; Conjunctiva ; Oxidizers ; Degradation ; Humans ; Bioassay ; Enzymes ; Public health ; California ; Tears(Physiology)
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-224 537 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 19p
Abstract
Tear samples were collected from 358 volunteers in Southern California in smog polluted areas. No consistent variation of lysozyme concentration with oxidant concentration was demonstrated. Subjects exposed to .19 ppm of oxidant in the open air did show decreased lysis. A threshold effect is possible. No correlation was established between lysis and mild subjective complaints of irritation. Objective indications of eye irritation show a mild decrease in lysis levels.