Odors, gases and particulate matter from high density poultry management systems as they relate to air pollution : final report /

"April 15, 1969."

A conceptual study of possible collecting systems for use in stratospheric sampling /

Because the use of filters to sample particulate matter suspended in the upper atmosphere has been investigated and has yielded rather disappointing results, an examination of other methods of upper atmospheric sampling is desirable, and this is the aim of the present report. The nature of any radioactive material, and its relation to the size and composition of the suspended particles is of particular interest.

Turbine engine particulate emission characterization /

Mode of access: Internet.