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Dispersal Conditions and Assimilative Capacity of Air Environment at Gajuwaka Industrial Hub in Visakhapatnam


Srinivasa Rao S., N. Srinivasa Rajamani, E. U. B. Reddi
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The comprehension of a pollution event requires not only the accurate determination of the chemical composition of the atmospheric particles but also the elucidation of the role played by the dilution properties of the lower atmosphere. In this context, a rapidly growing Gajuwaka industrial hub in Visakhapatnam was chosen for estimating the assimilative capacity of air environment for its pollution potential by calculating the ventilation coefficient values. The diurnal variations of assimilation capacity of atmosphere were shown high during the noon hours and low at night and early morning hours in all the seasons. The monthly variations of low and high assimilative capacities were observed in the month of February and October respectively. Seasonally, post-monsoon showed high ventilation capacity followed by monsoon, winter and pre-monsoon seasons. Further, this is compared with the seasonal variations of the ambient air quality at the study area. The study area met the criteria of low pollution potential for all the time except for morning hours. The study area exhibited ‘good’ category dispersal conditions with an annual mean of ventilation coefficient value of 4271.6m2s-1 and the duration of ‘good’ dispersal conditions are longer in the months of April, May and June compared to other seasonal months.

Srinivasa Rao S., N. Srinivasa Rajamani, E. U. B. Reddi

Pollution potential, Ventilation coefficient, Mixing heights, Transport winds

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  • Publication Details

    Published in : Volume 1 | Issue 4 | July-August - 2015
    Date of Publication Print ISSN Online ISSN
    2015-08-25 2395-1990 2394-4099
    Page(s) Manuscript Number   Publisher
    05-15 IJSRSET151382   Technoscience Academy

    Cite This Article

    Srinivasa Rao S., N. Srinivasa Rajamani, E. U. B. Reddi, "Dispersal Conditions and Assimilative Capacity of Air Environment at Gajuwaka Industrial Hub in Visakhapatnam ", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 1, Issue 4, pp.05-15, July-August-2015.
    URL : http://ijsrset.com/IJSRSET151382.php