93
Views
1
CrossRef citations to date
0
Altmetric
Research Papers

Integrated modelling with environmental parameters for aquatic system assessment: a case study on the Ghare-Bagh drainage, Iran

, , , &
Pages 335-346 | Received 13 Jan 2016, Accepted 23 Feb 2017, Published online: 17 Mar 2017
 

ABSTRACT

This paper is an attempt to use a combination of geochemical methods, swarm intelligence-based optimization technique, and geographic information system (GIS) processing in order to provide an efficient way for analysing the geochemistry of potentially toxic metals in an aquatic system. Using this combined approach, the contamination characteristics of selected potentially toxic metals (As, Cd, Cr, Cu, Co, Mo, Ni, Pb, and Zn) in the surface water and sediment samples of Ghare-Bagh drainage in SE Shiraz, Iran is evaluated and potential risk is assessed. The results indicated that the maximum content of Ni, Mo, and Cu greatly exceeds the maximum permissible levels, when compared with the maximum value of world rivers. Considering sediment quality guidelines, occurrence of adverse aquatic biological effects due to high Cu, Zn, Ni, and Cr is likely. The more labile fractions of sequential extraction analysis of potentially toxic metals gave the following decreasing risk order: Mo > Pb > As > Zn > Cu > Cd > Co > Ni > Cr. Hence, Mo and Pb are more available, and likely to enter the food chain of the aquatic fauna. The modified krill herd optimization algorithm (MKHOA) was used for automatic clustering purposes in spatial data analysis using 14 variables (pH, CaCO3, OM, CEC, electrical conductivity, As, Cd, Cr, Cu, Co, Mo, Ni, Pb, and Zn) measured in drainage sediments. The results of MKHOA demonstrated that the sources of potentially toxic metals are divided into three groups including (i) industrial effluents (Mo), (ii) erosion and leaching of riverside soil(Ni, Co, and As), and (iii) domestic wastewater and/or agricultural run-off (Pb, Zn, Cd, Cr, and Cu).

Acknowledgements

Thanks are extended to the research committee of Shiraz University for logistical support.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors would like to thank the Presidency of Islamic Republic of Iran National Elites Foundation and the medical geology research centre of Shiraz University for financial support.

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 144.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.