||Chemical and Physical Characterization of Automotive Exhaust Particulate Matter in the Atmosphere
Melton, C. W. ;
Mitchell, R. I. ;
Trayser, D. A. ;
Foster., J. F. ;
||Battelle Columbus Labs., Ohio.
||EPA-68-02-0205; APRAC-CAPE-19-70; CRC-APRAC-CAPE-19-70-2;
Exhaust gases ;
Air pollution ;
Test methods ;
Chemical composition ;
Particle size ;
Particle size distribution ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The report describes a third year of studies directed toward determining the fate of auto exhaust particles in the atmosphere. Experimental apparatus and procedures have been developed, and analyticl data have been accumulated on particle characteristics and morphology. In the year covered by this report, preparation, instrumentation and deposit conditioning of two automobiles has been completed in preparation for systematic examination of particulate emissions during the coming year. Environmental variables are to be studied for influences on the properties and fate of aerosols emitted by the automobiles and diluted by mixing with the ambient atmosphere. This report is presented in two major sections describing first the experimental apparatus and procedures, and then the experimental results with discussion of their significance and interpretation.