Ecological risk assessment and source apportionment of heavy metals contamination: an appraisal based on the Tellus soil survey

2021 ◽  
Author(s):  
Ali Keshavarzi ◽  
Vinod Kumar ◽  
Güneş Ertunç ◽  
Eric C. Brevik
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Source Apportionment ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
Soil Survey ◽  
Heavy Metals Contamination

Potential Ecological Risk Assessment of Heavy Metals Contamination in Surface Sediments of Ikpoba River, Southern Nigeria

2020 ◽  
Vol 3 (1) ◽  
pp. 33-41
Author(s):  
AA Enuneku ◽  
F Ineh
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Heavy Metal ◽  
Ecological Risk ◽  
Ecological Risk Assessment ◽  
Surface Sediments ◽  
Contamination Factor ◽  
Potential Ecological Risk ◽  
Potential Ecological Risk Assessment ◽  
Heavy Metals Contamination

The potential ecological risk assessment of heavy metals contamination in surface sediments of Ikpoba River, Edo State was estimated in this study after assessment of heavy metal concentrations in surface sediments from seven stations of the study area. Heavy metals were analyzed in the sediments using Atomic Absorption Spectrophotometer. The index of geo-accumulation for the metals (Lead (Pb); Iron (Fe); Nickel (Ni) and Copper (Cu)) studied were less than zero showing that the stations sampled were unpolluted with heavy metals. Contamination factor followed same pattern. Generally, there was a low potential ecological risk for heavy metal contamination to sediment dwelling organisms. However, station 4 (Capitol) was moderately contaminated and extremely enriched with Cu. Heavy metal values in this study were below the EPA limits for sediments except station 4 which was heavily polluted with Cu following the EPA guidelines. Regular monitoring and assessment of pollution load of Ikpoba River is recommended.

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