Assessment of Pollution Load Indices of Heavy Metals in Cassava Mill Effluents Contaminated Soil: a Case Study of Small-scale Processors in a Rural Community in the Niger Delta, Nigeria

The Kolo Creek is an inland water body in the Niger Delta receiving organic and chemical wastes arising from anthropogenic activities within the catchment area. This study was therefore carried out to investigate the spatial variabilities of heavy metals in surface and sediment and their geochemical factors that influence their presence along the Kolo Creek in 2018 using Geo-accumulation index and pollution load index to extrapolate the level of heavy metal contraction in the two medium. Sediment and Water samples were collected for five (5) months and assessed from eight sampling points (A-h) for seven (7) heavy metals such as Copper (Cu), Lead (Pb), Iron(Fe), Camium (Cd), Manganese (Mn), Nickel (Ni) and Mercury (Hg). All the heavy metals had geo-accumulation indices below zero which indicates no pollution except Fe which had geo-accumulation index in the range 3.327 in surface water and 7.751 in sediment, furthermore, the pollution load index revealed a toxicity of 0.664 times in surface water as against 1.501 times in sediment exceeding the background concentration in the Kolo Creek. Hence, poor ecological ethics and culture should be discouraged to keep the Kolo Creek water under check for safe domestic water use.

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Geo-accumulation Index, Enrichment Factor and Quantification of Contamination of Heavy Metals in Soil Receiving Cassava Mill Effluents in A Rural Community in the Niger Delta Region of Nigeria

Molecular Soil Biology ◽

10.5376/msb.2017.08.0002 ◽

2017 ◽

Cited By ~ 10

Author(s):

Sylvester Chibueze Izah ◽

Sunday Etim Bassey ◽

Elijah Ige Ohimain

Keyword(s):

Heavy Metals ◽

Enrichment Factor ◽

Rural Community ◽

Niger Delta ◽

Delta Region ◽

Niger Delta Region ◽

Accumulation Index ◽

Geo Accumulation Index ◽

Geo Accumulation

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Toxicity Assessment of some Crude Oil Contaminated Soils in the Niger Delta

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.62-64.451 ◽

2009 ◽

Vol 62-64 ◽

pp. 451-455 ◽

Cited By ~ 3

Author(s):

F.A. Aisien ◽

J.C. Chiadikobi ◽

E.T. Aisien

Keyword(s):

Heavy Metals ◽

Moisture Content ◽

Crude Oil ◽

Contaminated Soil ◽

Contaminated Soils ◽

Niger Delta ◽

Extraction Methods ◽

Toxicity Assessment ◽

Soil Samples ◽

Physiochemical Parameters

This paper considered the toxicity assessment of some crude oil contaminated soils in Niger Delta areas. The soil samples were collected from different horizontal distances, vertical depths and contaminated soil of different ages. The heavy metals in the contaminated soils were digested and extracted using di-acid digested and DTPA extraction methods respectively. The physiochemical parameters (moisture content, pH, N, P and heavy metals (Ni, Pb and Cd) were analysed with APHA method. The heavy metals concentration was determined using atomic absorption spectrophotometer (AAS). The results show that the metals concentration decreased with the age of the contaminated soil and with increased vertical depths. However, the metals concentrations were almost constant at different horizontal distances. Similar trend was observed for the moisture content, pH, N, P and K.

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