| Main Title |
Problem of Selecting the Number of Sampling Points and Frequency of Observations of Atmospheric Pollution (K Voprosu o Vybore Kolichestva Punktov Otbora Prob i Chastote Nablyudenii za Zagryazneniem Atmosferei). |
| Author |
Goroshko., B. B. ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section. |
| Year Published |
1971 |
| Report Number |
EPA-TR-73-647J ;APTIC-47616; |
| Stock Number |
PB-258 794-T |
| Additional Subjects |
Monitoring ;
Air pollution ;
Sampling ;
Industrial wastes ;
Combustion products ;
Concentration(Composition) ;
Plumes ;
Exhaust emissions ;
Urban areas ;
Wind velocity ;
Sites ;
Flue gases ;
Chemical analysis ;
Translations ;
USSR ;
Air pollution detection
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-258 794-T |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
20p |
| Abstract |
Sampling to determine atmospheric pollution and chemical analysis of the samples requires considerable expenditure of time. Therefore, the problem of the optimum number of sampling points and frequency of sampling is of considerable significance. The task of investigating atmospheric pollution in the vicinity of individual sources is somewhat simpler. Let us deal with it initially, so that we can use this as a basis for moving on to the problem of organizing observations in urban territories with a great many sources emitting pollutants. The problems of organizing the observation of atmospheric pollution around large enterprises have already been discussed in part (8-11). It was noted that the minimum intervals between remote observations have been set at short distances. With increasing distance from the source, the intervals grow longer, so that on the lee side of the enterprise a significant influence is exerted by unorganized emissions and emissions from low stacks whose concentration decreases rapidly. Because of other factors which determine the degree of pollution of a city, it is necessary to conclude that there are changes in the volume of pollution emissions in the atmosphere. The principal influence is the proximity of busy roads and industrial areas. Hence, the density of a network with 3 to 4 km between points may be sufficient to obtain general characteristics of the field of concentration for the territory of the city. In this instance, when the concentration of pollutants is determined primarily by the influence of local sources, it is advantageous to carry out a sampling using automatic devices located at different distances from the center of the emissions. |
| Supplementary Notes |
Trans. of Glavnaya Geofizicheskaya Observatoriya, Leningrad. Trudy (USSR) n254 p140-151 1971. |
| Title Annotations |
+++The Problem of Selecting the Number of Sampling Points and Frequency of Observations of Atmospheric Pollution (K Voprosu o Vybore Kolichestva Punktov Otbora Prob i Chastote Nablyudenii za Zagryazneniem Atmosferei)--Translation. |
| PUB Date Free Form |
1971 |
| Category Codes |
13B; 4B; 68A |
| NTIS Prices |
PC A02/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323702285 |
| Origin |
NTIS |
| Type |
CAT |
