以广东某垃圾焚烧炉为研究对象，应用富集因子法、主成分分析法对其周边环境空气中金属（ Fe、Al、Mg、Cu、Zn、Mn、Ba、Pb、Cr、Ni、Bi和Cd）含量及来源进行分析．结果如下：研究区域环境空气中各金属含量（各点均值）（ng·m－3）为：Fe （1092—3487）＞ Al（939—3126）＞ Mg（716—1339）＞ Cu （63．4—995）＞ Zn （227—427）＞Mn（162—291．1）＞Ba（61．4—372）＞Pb（21．9—41．8）＞ Cr（12．3—25．7）＞Ni （5．70—15．5）＞ Bi （0．70—1．22）＞Cd （0．42—0．82）．相关分析和主成分分析发现，研究区域Fe与Ni、Cr、Mn、Ba主要来自于焚烧炉释放， Zn、Cd、Pb、Bi和Cu则来自于研究区域周边的交通污染源，而Al和Mg则主要来自于地壳或土壤背景值．
Taking a MSWI in Guangdong as a study subject, the concentrations and source of metals Fe, Al, Mg, Cu,Zn, Mn, Ba, Pb, Cr, Ni, Bi and Cd were analyzed through enrichment factor and principal component analysis method. The results showed that the concentrations of metals( ng·m-3 ) in TSP were Fe (1092—3487) >Al(939—3126) > Mg(716—1339)> Cu (63.4—995) > Zn (227—427)>Mn(162 —291.1)>Ba(61.4—372)>Pb(21.9—41.8)> Cr(12.3— 25.7) >Ni ( 5?70—15. 5 ) > Bi ( 0. 70—1. 22 ) >Cd ( 0. 42—0. 82 ) . The correlation analysis, principal component analysis results showed that Fe, Ni, Cr, Mn, Ba mainly came from MSWI emission. Zn, Cd, Pb, Bi and Cu mainly originated from traffic pollution in the surrounding of the study area. Al and Mg mainly originted from crust and natural background.
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