期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：1
页码：8215
出版社：S&S Publications
摘要：Air pollution in general occurs through both anthropogenic and natural sources but in the recent times,increasing population, growth of industries and rapid urbanization are more responsible for the increase in air pollution.The Air pollutants can also be broadly classified into two general groups.1) Primary Pollutants 2) Secondary pollutants.Primary pollutants are (a) fine particles less than 100 μrn (RSPM) (b) coarse particles >100 μm (TSPM), and (c)Sulfur and Nitrogen compounds, Secondary pollutants are formed by chemical and photochemicalreactions of primary pollutants (acid rains). In the present study an attempt is made to see the implications of airpollution and its effects on the environment of an industrially developed coastal city. As a test case the data of the majorprimary pollutants like SO2, No2, TSPM (Total suspended particulate matter) and RSPM (Respirable Suspended ParticulateMatter) for the years of 2001-2010 at various locations in Visakhapatnam are analyzed. The factors influencing thedispersion and dilution of air pollutants depends on mainly Meteorological and topographical factors. Here we discuss theseasonal rainfall distributions and local stability conditions how influence the dispersion and dilution of pollutants in annualtime scales. Also an attempt is made on how these primary pollutants vary in a coastal developed city in the global warmingera on seasonal and annual time scales.
