For estimation of Particulate Matter emissions from sponge iron kiln most important factor is selection of estimation technique.
Basically, direct measurement for characterising emissions is most accurate method and it should be used in preference to other
Emission Estimation Techniques. Emission factors are normally prepared through testing of a source like various burning chambers
of a particular fuel type. The basic assumption for using an emission factor is that all components of the source can perform in the
same manner with minimum variation