Mercury Content of Soil, Water and Proximate Composition of Spinacia oleracea Irrigated with River Tudun Wada, Kaduna State, Nigeria

Abstract

The study was conducted to determine the mercury content of soil, water and proximate composition of Spinacea oleracea irrigated with river Tudun Wada, Kaduna State, Nigeria. The average percentage proximate composition was estimated using standard methods and the concentrations of mercury by cold vapour atomic absorption spectrophotometer (CV-AAS). The results of the proximate composition revealed Ash (3.86 ± 0.13 %), Crude fibre (4.76 ± 0.15 %), Crude fat (0.0997 ± 0.07 %), Protein (3.93 ± 0.18) and Moisture (73.4 ± 2.7 %). The concentrations of mercury in the soil ranged from 2.10 - 2.90 µg/kg, in Spinacea oleracea it ranged from 0.500 – 1.30 µg/kg and below detection limit in water which indicates that Spinacea oleracea could be an excellent bio-indicator. The transfer factor ratio is < 1 which shows that mercury concentration is greater in the soil than plant part, the transfer coefficient at some points indicate high probability of contamination by anthropogenic activities.

Keywords

Mercury; Spinacea oleracea; Tudun Wada; Soil; Water

References

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