title: Microextended X-ray absorption fine structure studies of cadmium speciation within single municipal solid waste fly ash particles.
abstract: The local chemical structure of trace amounts of cadmium within microvolumes of highly inhomogeneous municipal solid waste fly ash particles was successfully monitored by means of micro-EXAFS. A new quantification procedure was developed for the evaluation of the micro-EXAFS data sets obtained from each individual particle based on a reverse Monte Carlo simulation. Evidence has been presented for the existence of cadmium silicate and cadmium chloride, with the cadmium silicate being the dominant form, and it has been demonstrated that the cadmium exists in both crystalline and amorphous states within the microspots analyzed.
authors.affiliation: Department of Inorganic Environmental Chemistry, Chalmers University of Technology, S-412 96 Göteborg, Sweden. caterina@inoc.chalmers.se
authors.forename: Maria Caterina
authors.initials: MC
authors.lastname: Camerani Pinzani
authors.forename: Stuart
authors.initials: S
authors.lastname: Ansell
authors.forename: Andrea
authors.initials: A
authors.lastname: Somogyi
authors.forename: Britt-Marie
authors.initials: BM
authors.lastname: Steenari
authors.forename: Oliver
authors.initials: O
authors.lastname: Lindqvist
mesh_terms: D000042:Absorption; D000393:Air Pollutants / Q000032:analysis*; D002104:Cadmium / Q000032:analysis* / Q000737:chemistry*; D002244:Carbon / Q000032:analysis* / Q000737:chemistry; D060729:Coal Ash; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods; D052638:Particulate Matter; D013052:Spectrometry, X-Ray Emission / Q000295:instrumentation / Q000379:methods*
chemical_list: D000393:Air Pollutants; D060729:Coal Ash; D052638:Particulate Matter; D002104:Cadmium; D002244:Carbon