||Study of the Nature of the Chemical Characteristics of Particulates Collected from Ambient Air.
Henr, W. M. ;
Blosse, E. R. ;
||Battelle Memorial Inst., Columbus, Ohio. Columbus Labs.
( Air pollution ;
( Chemical composition ;
( Urban areas ;
Air pollution) ;
Chemical analysis ;
Electron microscopy ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The elemental composition of particulate material collected from the ambient urban air in six locations is presented. Both major and minor constituents were determined by using several techniques and analytical instruments. In a broad sense the compositions for each city were similar; but certain distinct differences, especially in the less abundant elements, are apparent. Some work has been begun to identify compounds and elemental associations. This work is presently under way in a continuing program. (Author)