1- This code is used to read and map multiple NO2 Tropospheric products. 2- The code is designed to be educational and applicable. 3- The code is designed of multi questions, and gives the users the optional way of process and save any of the product within the folder. 4- This code is written in python 3.6 and also has been tested in Anaconda python 3.7. 5- This code reads the NO2 molec/cm2. 6- The code uses basemap library to map the NO2 emission. 7- The latitude and longitude should be editted according to the study area. 8- The title of any map is the date of prodcut.