Mbe Et Al

Mbe et al



Greener
Journal of  Agricultural Sciences


Vol. 3 (5), pp.
412-416, May 2013.


 ISSN: 2276-7770 



Research

Paper



Manuscript Number: 042413584

 



Experimental Investigation of Mercury Distribution in
Polluted  Soils of  Owerri Area, Southeastern Nigeria

 

 Mbe J.O.1, Onyekwere I.N.1,
Ano A.O.1, Onweremadu E.U.2* and
Chukwu L.I.1

 


1
Soil
Science Laboratory, National Root Crops Research
Institute, Umudike.


2
Department
of Soil Science and Technology, Federal University of
Technology Owerri, Nigeria.

 


*Corresponding Author’s Email: uzomaonweremadu @ yahoo.
com

Abstract:

Mercury is a neurotoxic heavy metal, found in some polluted
soils. A soil survey of Nekede mechanic village in Owerri
area, Southeastern Nigeria polluted with automobile wastes
was conducted. A transect was cut from the automobile
service station outwards to link soils affected by
automobile activities. Two profile pits, representing
polluted and non-polluted sites were dug, described and
sampled for laboratory analysis. Soil samples were collected
based on differences in pedogenic horizons. The soil samples
were analyzed in the laboratory for physical and chemical
properties. Results of the physical properties showed that
the bulk density of the soils ranged from 1.48-1.57 g cm-3,
clay fraction ranged from 6-32 %, Silt fraction ranged from
2.0 to 8.0 % while sand fraction ranged from 62-80 %. Soil
reaction ranged from 4.7 to 5.8, organic carbon ranged from
2 to 2.5 %, total nitrogen ranged from 2 to 23g/kg, CEC
ranged from 2.9 to 6.9 cmol kg-1 and Hg ranged
from 0.22 to 1.88 mg kg-1. The soil organic
carbon, total nitrogen and mercury content of the soil
decreased down the profile, while the bulk density increased
down the profile.
 
Keywords: Coastal Plain Sands, Mercury, Pedon,
Pollution, Tropical soils.

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