Contamination Assessment of Copper, Lead, Zinc and Chromium in Dust Fall of Jinan, NE China
To assess the pollution of heavy metal in dust fall, nine dust fall samples were collected during the heating period and non-heating period from Jinan, a city in northeastern China. The samples were analyzed for Cu, Pb, Zn and Cr and the contamination level of heavy metals was assessed on the basis of the geo-accumulation index (Igeo). The results indicated that all of the four investigated metals accumulated significantly in the dust fall of Jinan, and the metal concentrations were much higher than background values. The mean values for Cu, Pb, Zn and Cr in the dust fall were 377.8, 736.3, 2867 and 841 mg kg-1, respectively. The Igeo values calculated based on background values revealed that the contamination level of heavy metal in the dust fall ranges from moderately contaminated to heavily contaminated, and it mainly originates from traffic and industry. In this work, we also used the dust fall residue compared to the standard reference as the background value to calculate the Igeo value. This method is useful for situations in which the background value is difficult to obtain.
Contamination Assessment Dust Fall Heavy Metal Geo-accumulation Index
Suping Feng Nannan Zhang Hanchao Liu Xiaolin Du Yongli Liu
School of Environmental Science and Engineering,Shandong University,Jinan 250100,China
国际会议
西安
英文
743-752
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）