Identification and analysis of factors affecting the quality of air in Nepal with focus on the status of air quality in Kathman.pdf

1、Air pollution has emerged as one of the major problems in developing countries like Nepal. Although increased studies aimed at air pollution issues have been conducted in the country relatively recently, the up-to-date d

2、atabase to summarize the status of these studies is virtually not present. In order to fill in the information gaps that exist for the status of air pollution studies in Nepal, there is an urgent need to summarize the av

3、ailable literature and create a data base that would provide a comprehensive and thorough picture of air pollution scenario in Nepal. The overarching aim of this study is to create a data base that would provide a compre

4、hensive and thorough picture of air pollution scenario in Nepal. The exhaustive search of published scientific articles and report aimed at air pollution in Nepal were conducted by an electronic search of Google Scholar.

5、 Studies related to air pollution conducted in Nepal from the early 1990’s to 2013 were collected, and were organized into different categories. My results suggest that there have been some extensive researches only on s

6、ome of the major air pollutants such as particulate matter, carbon monoxide, nitrogen oxide, and sulfur dioxide. Results also showed that a huge numbers of studies are focused only in the Kathmandu valley and its surroun

7、ding metropolitan areas such as Bhaktapur and Lalitpur which are the major cities in the central development region of the country. Even among these three cities, the priority has been given to alone Kathmandu as it is t

8、he capital of the country. Only handful of studies have focused outside the valley in urban centers such as Pokhara, Buwal, Biratnagar, Nepalgunj etc. or other development regions. My analysis showed that the ambient air

9、 of Nepal is heavily polluted and that the quality of the air is degrading from last few years. This unfortunate degradation of air quality is mainly been due to rapid rise in the number of petrol and diesel emissions to

10、 the air from the many brick kilns, cement factory, dyeing industries etc. Many of the studies made over the last decade have shown that the air quality of Nepal is heavily polluted and that the quality of the air is det

11、eriorating. My comprehensive analysis of air pollution status in Nepal is not only able to assess the status of air pollution in Nepal but also fills the gap for the future studies to take place. The literatures categori

12、zed and analyzed according to the year, pollutants being studied, areas being studied and the environment will help to fill the gap in assessing the level of air pollution. With the classification, there is a clear