A Comparative Analysis of Environmental Quality Assessment Methods—a Case Study of Heavy Metal-Contaminated Soil
- DOI
- 10.2991/mebe-15.2015.114How to use a DOI?
- Keywords
- environmental assessment; fuzzy mathematical model; pollution index method; heavy metal-contaminated soil; soil.
- Abstract
Four assessment methods (two pollution index and two fuzzy mathematical models) were employed to investigate the environmental quality of eight soils around a heavy metal contaminated site. From the results of analysis, comprehensive index model is more reasonable compared with the single-factor index method; Compared with the pollution index, in fuzzy mathematical methods, membership functions were used to describe the limits between different pollution degrees, and different weights were allocated for the factors according to pollution contribution. In the single-factor deciding model, the dominant factor was given more attention, and the effects of the other factors were weakened. However, in the weighted average model, the contribution of each factor was well taken into account, and the weights were allocated for the factors according to the contribution degree. In fuzzy mathematical methods, membership functions were used to describe the limits between different pollution degrees, and different weights were allocated for the factors according to pollution contribution. Introduction of membership degree and weight of each factor to fuzzy mathematical models made the methods more reasonable in the field of environmental quality assessment.
- Copyright
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Zhichao Liu AU - Liangmin Gao AU - Ning Liu AU - Xiaoxiao Zhang PY - 2015/04 DA - 2015/04 TI - A Comparative Analysis of Environmental Quality Assessment Methods—a Case Study of Heavy Metal-Contaminated Soil BT - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering PB - Atlantis Press SP - 492 EP - 499 SN - 2352-5401 UR - https://doi.org/10.2991/mebe-15.2015.114 DO - 10.2991/mebe-15.2015.114 ID - Liu2015/04 ER -