AIR POLLUTION DIRECTIONAL ASSESSMENT ON DISPOSAL SITES OF HEBBAL AREA, BANGALORE USING GEOINFORMATICS
A location for a dump must be chosen after consideration of air, water and soil. Similarly environmental resources need to asses for the open dumped disposal sites. The wind movement carries the odor’s from the disposal sites, and it has a big influence on the people who live nearby. Additionally, anthropogenic activity at disposal sites such as leaching and sporadic fires promote the release of organic contaminants that drift with the wind. It is vital to understand the spatial distribution of pollution using GIS in order to calculate the possible danger from open dumping. Data on population density and weather observations were gathered for the current study area from a census database and the few areas with monitoring stations, respectively. Varied places have varied meteorological features, including various patterns of wind speed and direction. A windrose plot that examines patterns of wind speed and direction is typically created to assess the danger of air pollution. The distribution of wind speeds in various directions is seen on the windrose plot. The windrose chart analyzed for three years data suggest the directional flow of wind movement is from southwest to northeast varying with speed and the frequency rate shows an decreasing percentage year wise. The study of spatial distribution maps of the wind speed and direction gives an idea about the air movement and helps to correlate with spreading of the dry waste in the surrounding. The integrated map reveals that the bigger arrows indicate the high movement of wind blow and vice versa with small arrows.
Windspeed, Windrose, GIS, Odor, Unsanitary