Mathematical modeling of photochemical air pollution—III. Evaluation of the model

1974 ◽  
Vol 8 (6) ◽  
pp. 563-596 ◽  
Author(s):  
Steven D. Reynolds ◽  
Mei-Kao Liu ◽  
Thomas A. Hecht ◽  
Philip M. Roth ◽  
John H. Seinfeld
2020 ◽  
Vol 161 ◽  
pp. 01005
Author(s):  
M V Volik

Currently, a number of environmental problems have a significant impact on the stable economic development of the country. A global problem is the study of air pollution. The solution of such geoecological problems should be carried out with the use of modern mathematical apparatus and digital technologies. The paper presents the results of a numerical study of the distribution of gaseous pollutants emitted by motor vehicles in the pedestrian zone of streets. It is shown that the vortex structures formed in the studied city buildings development have a significant impact on the accumulation of anthropogenic impurities.


2020 ◽  
Vol 7 (2) ◽  
pp. 58-63
Author(s):  
ERKIN IMAMOV ◽  
◽  
RAMIZULLA MUMINOV ◽  
RUSTAM RAKHIMOV ◽  
◽  
...  

Technological factors of environmental impact on the protective structures of solar modules are considered. It is shown that the problem of extending the service life of solar converters is successfully solved by improving the technology of their opera-tion - indirect activities. It is shown that after each regular cleaning of the surface of the protective structures of the solar module can almost completely restore the working efficiency of its power output, even at high (up to 35%) level of reduction due to dust on the territory of our country within one to two days. The atmospheric impact on the protective structures of solar modules was calculated. The influence of the partial pressure of air particles and the large difference between night and day temperatures on the degree of dust contamination of the protective coatings of the solar module is analyzed. They are the main natural factors that reduce the output power and efficiency of solar energy to electricity converters. Keywords: dust and air pollution, climate parame


Atmosphere ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 656
Author(s):  
Vladislav Svozilík ◽  
Aneta Svozilíková Krakovská ◽  
Jan Bitta ◽  
Petr Jančík

Knowing the relationship between pollution sources and air pollution concentrations is crucial. Mathematical modeling is a suitable method for the assessment of this relationship. The aim of this research was to compare the results of the Analytical Dispersion Modelling Supercomputer System (ADMOSS), which is used for air pollution modeling in large areas, with the results of moss biomonitoring. For comparison purposes, air pollution mathematical modeling and the collection of moss samples for biomonitoring in the Czech–Polish–Slovak border area in the European Grouping of Territorial Cooperation (EGTC) Tritia were carried out. Moss samples were analyzed by multi-element instrumental neutron activation analysis (INAA). The INAA results were statistically processed using the correlation-matrix-based hierarchical clustering and correlation analysis of the biomonitoring results and ADMOSS results. Biomonitoring using bryophytes proved to be suitable for the verification of mathematical models of air pollution due to the ability of bryophytes to capture the long-term deposition of pollutants and the resulting possibility of finding the real distribution of pollutants in the area, as well as identify the specific chemical elements, the distribution of which coincides with the mathematical model.


2021 ◽  
Vol 10 (2) ◽  
pp. 219-228
Author(s):  
Nita H. Shah ◽  
Ankush H. Suthar ◽  
Purvi M. Pandya

Indoor Air ◽  
1996 ◽  
Vol 6 (1) ◽  
pp. 18-30 ◽  
Author(s):  
L. Molhave ◽  
L.E. Sparks ◽  
P. Wolkoff ◽  
P.A. Clausen ◽  
P.A. Nielsen ◽  
...  

1973 ◽  
Vol 7 (11) ◽  
pp. 1033-1061 ◽  
Author(s):  
Steven D. Reynolds ◽  
Philip M. Roth ◽  
John H. Seinfeld

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