SOME STUDIES ON ENVIRONMENTAL POLLUTION CAUSED BY HEAVY METALS A
SOME STUDIES ON ENVIRONMENTAL POLLUTION CAUSED BY HEAVY METALS A
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Date
2015-02-02
Authors
GEORGE, OLUFEMI,
ADEDIRAN
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Abstract
The levels of heavy metals, like lead, nickel,
chromium and copper were determined in soil, vegetation
and water samples taken from twelve state capitals of
Nigeria, namely Lagos, Ibadan, Akure, Abeokuta, Kano,
Ilorin, Makurdi, Maiduguri, Kaduna, Jos, Owerri and
Sokoto. The samples were collected from along the sides
of a major highway recording a reasonably heavy vehicle
traffic volume.
The determination of metals was carried out using
atomic absorption spectroscopy and colorimetric methods.
The levels of the metals in soil samples from
Sokoto and Kano motor parks were also determined. The
level of lead showed a distinct correlation with traffic
volume.
In all the state capitals, the metal concentrations
in soil samples were generally below permissible thresholds.
However the lead values at Sokoto motor part
and on leaves from Ibadan, Lagos, Kano, Maiduguri and
Kaduna were sufficiently high to cause some concern.
The nickel concentrations in water samples from Ibadan,
Lagos, Kano and Kaduna were found to be high.
The two methods of analysis used were found to be
statistically comparable
Description
A THESIS PRESENTED TO THE AHMADU BELLO
UNIVERSITY IN PARTIAL FULFILLMENT FOR THE
AWARD OF DEGREE OF
MASTER OF SCIENCE IN
ANALYTICAL CHEMISTRY
BY
GEORGE OLUFEMI ADEDIRAN
B.Sc. (Hons) CHEMISTRY
(Ibadan)
Keywords
ENVIRONMENTAL, POLLUTION, HEAVY METALS