Ma. Qadir et al., NEUTRON-ACTIVATION ANALYSIS OF CE, YB, SE AND CR IN THE ATMOSPHERE OFSOME MAJOR URBAN AND INDUSTRIAL-AREAS OF PUNJAB, PAKISTAN, Journal of radioanalytical and nuclear chemistry, 201(4), 1995, pp. 347-354
The determination of Ce, Yb, Se and Cr has been carried out in the atm
osphere of Lahore, Faisalabad, Rawalpindi, Islamabad, Wah Cantt and Kh
anispur (background area) by INAA, Ce and Cr are associated with anthr
opogenic activities, while Yb is mainly due to soil derived aerosols.
Se represents both anthropogenic as well as soil derived aerosols.