title: A method for source apportionment of lead in fine particulate matter based on individual particle analysis using a synchrotron X-ray fluorescence microprobe.
abstract: A source apportionment method based on individual particle analysis carried out using a synchrotron X-ray fluorescence microprobe was developed for source apportionment of lead in fine particulate matter. Mass contributions of every emission source were obtained by intensity ratios of the characteristic X-ray spectrum of lead in individual airborne particles. The validity of the method was evaluated. The uncertainty of the source apportionment was estimated, which was within 10% in this work. The method was applied to the apportionment of lead in fine airborne particles of Shanghai, indicating that the method has a finer performance for source apportionment.
authors.affiliation: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, P. O. Box 800-204, Shanghai 201800, China. lixl@sinap.ac.cn
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Li
authors.forename: Guilin
authors.initials: G
authors.lastname: Zhang
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D002681:China; D007854:Lead / Q000032:analysis*; D052638:Particulate Matter / Q000737:chemistry*; D015203:Reproducibility of Results; D013052:Spectrometry, X-Ray Emission / Q000379:methods*
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D007854:Lead