title: EDXRF analysis of municipal solid waste using (109)Cd source.
abstract: Elemental compositions of municipal solid waste (MSW) samples have been analyzed using the non-destructive energy dispersive X-ray fluorescence (EDXRF) technique. The samples were collected from three different dumping sites of urban and suburban areas of the city of Kolkata, West Bengal, India. The EDXRF spectrometer consisted of a (109)Cd radioactive source and a Si (Li) detector. To check the reliability of the system, NIST Standard Reference Material-1648 UPM had been analyzed and it was found that within the experimental errors, our results agree quite well with the certified and non-certified values. The elemental compositions of all the three MSW samples were subsequently estimated using the same procedure. The matrix effects were estimated following the emission-transmission method. It was observed that except Fe, all the elements from Ti to Pb show concentration levels higher by a factor of 2-7 than the ecological screening values where as in the case of Fe, this factor varies from 100 to 200.
authors.affiliation: Nuclear and Atomic Physics Division, Saha Institute of Nuclear Physics, Bidhannagar, Kolkata 700064, India.
authors.forename: D
authors.initials: D
authors.lastname: Gupta
authors.forename: J M
authors.initials: JM
authors.lastname: Chatterjee
authors.forename: R
authors.initials: R
authors.lastname: Ghosh
authors.forename: A K
authors.initials: AK
authors.lastname: Mitra
authors.forename: S
authors.initials: S
authors.lastname: Roy
authors.forename: M
authors.initials: M
authors.lastname: Sarkar
mesh_terms: D002106:Cadmium Radioisotopes / Q000737:chemistry*; D007194:India; D019216:Metals, Heavy / Q000032:analysis*; D012037:Refuse Disposal; D013052:Spectrometry, X-Ray Emission
chemical_list: D002106:Cadmium Radioisotopes; D019216:Metals, Heavy