5.1 Material and literature review on the source of air pollution and related area.
5.2 Practice and pretest of using XRF and NAA
5.3 Choosing the study area and define the different sources.
5.4 Preparing and collecting of PM 2.5
5.5 Analysis of PM 2.5composition using X -ray fluorescence (XRF) and Neutron Activation Analysis (NAA)
5.6 Choosing methods to operation the data.
5.7 Summary the results conclusion and report writing.