Quantifying Grain-Size Variability of Metal Pollutants in Road-Deposited Sediments Using the Coefficient of Variation
文献类型：期刊论文
| 作者 | Wang, Xiaoxue; Zhao, Hongtao; Li, Xuyong |
| 刊名 | INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
 |
| 出版日期 | 2017-08-01 |
| 卷号 | 14期号:8页码:- |
| 关键词 | Road-deposited Sediment Grain Size Variability Coefficient Of Variation Metal Pollution |
| 英文摘要 | Particle grain size is an important indicator for the variability in physical characteristics and pollutants composition of road-deposited sediments (RDS). Quantitative assessment of the grain-size variability in RDS amount, metal concentration, metal load and GSF(Load) is essential to elimination of the uncertainty it causes in estimation of RDS emission load and formulation of control strategies. In this study, grain-size variability was explored and quantified using the coefficient of variation (Cv) of the particle size compositions, metal concentrations, metal loads, and GSF(Load) values in RDS. Several trends in grain-size variability of RDS were identified: (i) the medium class (105-450 mu m) variability in terms of particle size composition, metal loads, and GSF(Load) values in RDS was smaller than the fine (<105 mu m) and coarse (450-2000 mu m) class; (ii) The grain-size variability in terms of metal concentrations increased as the particle size increased, while the metal concentrations decreased; (iii) When compared to the Lorenz coefficient (Lc), the Cv was similarly effective at describing the grain-size variability, whereas it is simpler to calculate because it did not require the data to be pre-processed. The results of this study will facilitate identification of the uncertainty in modelling RDS caused by grain-size class variability. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39079]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Xiaoxue,Zhao, Hongtao,Li, Xuyong. Quantifying Grain-Size Variability of Metal Pollutants in Road-Deposited Sediments Using the Coefficient of Variation[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2017,14(8):-. |
| APA | Wang, Xiaoxue,Zhao, Hongtao,&Li, Xuyong.(2017).Quantifying Grain-Size Variability of Metal Pollutants in Road-Deposited Sediments Using the Coefficient of Variation.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,14(8),-. |
| MLA | Wang, Xiaoxue,et al."Quantifying Grain-Size Variability of Metal Pollutants in Road-Deposited Sediments Using the Coefficient of Variation".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 14.8(2017):-. |
入库方式： OAI收割
来源：生态环境研究中心
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