Back to Search
Start Over
[Composition Characteristics and Sources Apportionment of Lanthanoid in PM 2.5 of Quanzhou].
- Source :
-
Huan jing ke xue= Huanjing kexue [Huan Jing Ke Xue] 2017 Jul 08; Vol. 38 (7), pp. 2698-2706. - Publication Year :
- 2017
-
Abstract
- Samples of PM <subscript>2.5</subscript> were collected from 5 sites in Quanzhou in March, April and July, 2014. The concentrations of lanthanoid and other trace metals in the PM <subscript>2.5</subscript> were determined by Inductively Coupled Plasma Mass Spectrometry(ICP-MS). The total lanthanoid concentration (Σ Loid ), the ratio of light-lanthanoid(L Loid, including, La, Ce, Pr, Nd, Sm and Eu) to heavy-lanthanoid(H Loid, including Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu) in PM <subscript>2.5</subscript> were 2.490-5.708 ng·m <superscript>-3</superscript> (65.682-126.529 μg·g <superscript>-1</superscript> ) and 12.086-14.319, respectively. The distribution pattern of Loid in PM <subscript>2.5</subscript> was also evaluated in this study. All PM <subscript>2.5</subscript> samples showed similar distribution pattern with local topsoil. And positive Ce and negative Eu anomalies were observed in PM <subscript>2.5</subscript> . La-Ce-V plots and chemical mass balance(CMB) model were used for source identification and apportionment of PM <subscript>2.5</subscript> in Quanzhou. The CMB model was used to identify four main sources:urban fugitive dust, coal combustion, vehicle exhaust and waste incineration emission which had a contribution of 18.9%, 10.9%, 30.6% and 30.2%, respectively.
Details
- Language :
- Chinese
- ISSN :
- 0250-3301
- Volume :
- 38
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- Huan jing ke xue= Huanjing kexue
- Publication Type :
- Academic Journal
- Accession number :
- 29964608
- Full Text :
- https://doi.org/10.13227/j.hjkx.201612105