Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Vehicle-Generated Pollutant Diffusion Module in Open-Air Conditions (Samplings Along a One-Way Highway) (Modulo di Diffusione di Inquinanti Veicolari in Ambiente Aperto (Sperimentazion Lungo una via di Grande Traffico a Senso Univo)).
Author Mammarella, L. ; Santi., A. L. ;
CORP Author Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section.
Year Published 1971
Report Number EPA-TR-74-433 ;APTIC-43638;
Stock Number PB-258 829-T
Additional Subjects Air pollution ; Automobiles ; Urban areas ; Lower atmosphere ; Exhaust emissions ; Aerosols ; Carbon monoxide ; Samplers ; Highways ; Translations ; Italy ; Air pollution sampling
Library Call Number Additional Info Location Last
NTIS  PB-258 829-T Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 28p
Of the three types of atmospheric pollution (thermal, vehicular, industrial), the first two are those largely responsible for the change that takes place in the composition of the low-lying urban air strata. Vehicular emissions play a big role in low altitude urban pollution. A phenomenon of this type, particularly when the town topography is considered to be of the 'closed' type, tends to concentrate vehicular emissions for a long time. In this report specific vehicle-generated pollutants are considerably diversified, qualitatively and quantitatively. The tests that are given here, have great practical importance. In fact, an investigation of the type described in the document can be made by using a setup that would include even more equipment because the cost of the sampler is low, and the sampler is very easy to operate. Interpretation of the data obtained by the samplers leads to the conclusion that pollution is heaviest at the low levels (to about 3 meters) during rush hours. At slightly higher levels (6 meters for the case in point), the mean pollution level tends to decrease, though remaining constant.