Interrelations Among NO2 SO2 and PM10 Concentrations and their Predictions in Shimla

Abstract

In this project we have first of all studied the concentrations of NO2 and PM10 and then predicted their future level of concentrations in the ambient air of Kolkata. The data collected from West Bengal Pollution Control Board website have been used to construct linear, second degree, and third degree polynomial equations using MATLAB software. Since a curve in a small interval can be approximated by a line segment in that small interval, we have observed that better result can be achieved if we replace the curves piece wise in small intervals by line segments during January- April, May-August and September-December months for linear equations.. Finally, we have predicted the value of each parameter in terms of only one dependent variable.