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Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
95
Practical Case Study
ENVIRONMENTAL IMPACT OF NATURAL RESOURCES EXPLOITATION IN
NIGERIA AND THE WAY FORWARD
BABAGANA GUTTI*, MOHAMMED M. AJI and GARBA MAGAJI
Department of Chemical Engineering, University of Maiduguri, Maiduguri, Borno State, Nigeria.
*Corresponding Author: Phone: +2348034626874; Email: babaganagutti@yahoo.com
Received: 28th May 2012; Revised: 19th June 2012; Accepted: 19th
June 2012
Abstract: Natural resources exploitation, exploration, mining and processing have
caused different types of environmental damages which include ecological disturbances,
destruction of natural flora and fauna, pollution of air, water and land, instability of soil
and rock masses, landscape degradation, desertification and global warming. The
environmental damage has in turn resulted in waste of arable land as well as economic
crops and trees. Since much of the damage is inevitable if the natural resources must be
developed, both the government and the natural resource industry must be involved in
taking precautionary and remedial measures that can minimize the ill-effects of natural
resources exploitation. Emphasis should shift from waste disposal to waste minimization
through sorting, recycling, bioremediation, afforestation, sewage treatment and pollution
control, while the government should provide the regulatory legislation with appropriate
sanctions or where these regulatory bodies already exist, the enforcement of laws and
policy implementation is of paramount importance. The oil and gas industries, mining
companies and other natural resources exploitation bodies are expected to carry out
mandatory precautions, remedies or compensation for damage done.
Keywords: Damages, minimization, measures, sanctions, waste
INTRODUCTION
Exploitation of natural resources is an essential condition of human existence, throughout the
history of mankind; humans have manipulated natural resources to produce the materials they
needed to sustain growing human populations. This refers primarily for food production and
economic development but many other entities from the natural environment have been
extracted. Natural resources are an important material basis for a stable natural economy and
social development, they can be divided into two; the exhaustible: such as minerals and the
This work is licensed under the Creative Commons Attribution 3.0 Unported License, which permits
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ISSN 2088-3218
Volume 2, Number 2: 95-102, August, 2012
© T2012
Department of Environmental Engineering
Sepuluh Nopember Institute of Technology, Surabaya
& Indonesian Society of Sanitary and Environmental Engineers, Jakarta
Open Access http://www.trisanita.org/jates
International peer-reviewed journal
Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
96
inexhaustible: such as forests and grasslands, with industrialization and urbanization mankind’s
great demands for natural resources and their large scale exploitation and their consumption has
resulted in weakening, deterioration and exhaustion of these resources [1].
In the struggle for survival and development man creates a lot of negative impacts on the
environment, these impacts ranges from over-exploitation of resources, destruction of ecosystem
and pollution. Often the exploitation of nature has been done in a non-sustainable way, which is
causing an increasing concern, as the non-sustainable exploitation of natural resources ultimately
threatens the human existence. One difficult task faced by both developed and developing
countries is to guarantee the lasting utilization of natural resources at the lowest possible
environmental cost, while still assuring the economic and social development [2].
Nigeria with its large population and poor economic foundation is engaged in a process of
increased urbanization. The traditional mode of resource consuming, development and the
current inefficient economy are severely threatening the lasting utilization of natural resources.
The rate at which forests are destroyed in the name of furniture making, pulp and paper
production and as a source of domestic energy is at alarming rate. Some trends and problems of
exploitation of natural resources include; specie extinctions, oil spillage, gas flaring, deforestation,
soil erosion, coastal degradation, ozone depletion, ground water contamination among other
things [3].
IMPACT OF DEFORESTATION
In 1975 the total area of forest of all types in the country was estimated at about 360,000
square kilometer or about one third of the country land area. It was also estimated that annual
harvest of sawn timber from high forest was about 1.5 million cubic metre which would take
between 25 to 30 years to denude the forest of matured timber, with rapid rise in domestic
consumption of timber due to increased rate of building construction resulting from rise in
population and urbanization. It will take less than 15 years to exhaust the forest of timber
resources [1].
Deforestation is a process whereby trees are felled for several purposes but without
replanting to replace the ones felled [1]. Deforestation is dangerous to man, animals and
properties. The rate at which forest are destroyed in the name of furniture making, economic
development and as a source of domestic energy is at alarming rate, it leads to erosion of soil,
loss of biodiversity, land degradation, desertification, draught, flooding, climate change among
other effects [1]. Deforestation of secondary tropical peat swamp forest significantly decrease soil
PHwater,
and some soil major macro-nutrients [5].
Table 1: Deforestation Data for Nigeria, 1990 – 2005
Classification
Area (ha)
Total change
Percentage
%
Period
1990
2000
2005
1990 – 2005
1990 – 2005
Total forest area
17,234,000
13,137,000
11,089,000
-6,145,000
-35.66
Other wooded land
9,717,000
6,902,000
5,495,000
-4,222,000
-43.45
Primary forest
1,556,000
736,000
326,000
-1,230,000
-79.05
Plantations
251,000
316,000
349,000
98,000
39
Source: forest resource assessment [6].
Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
97
Deforestation is a serious problem in Nigeria with forest loss occurring at rate of 3.3% per
year since 1990, the country has loss over 36% of its forest cover. The most biodiversity
ecosystem, the old-growth forests are disappearing at an even faster rate between 1990 and
2005, 79% of the primary forest were lost and since 2000, Nigeria has been losing an average of
11% of its primary forest each year, these figures give Nigeria the highest deforestation rate of
natural forest in the world [6].
Table 2: The Worst Deforestation Rate of Primary Forests.
Position
Countries
Percentage rate
1
Nigeria
55.7%
2
Vietnam
54.5
3
Cambodia
29.4
4
Srilanka
15.2
5
Malawi
14.9
6
Indonesia
12.9
7
North Korea
9.3
8
Nepal
9.1
9
Panama
6.7
10
Guatemala
6.4
Source: Deforestation figures [7].
Nigeria has the highest deforestation rate of primary forest in the world according to the
revised figures from food and agriculture organization of United Nations (FAO), between 2000
and 2005 the country has lost over 55% of its primary forest, this could leads to desert
encouragement, global warming, food chain depletion, destruction of soil structure, extinction of
wildlife, draught and exposes the bush to burning [6].
IMPACT OF MINING ON THE PHYSICAL ENVIRONMENT
Although mining provides a variety of socio-economic benefits but its environmental costs, if
not well handled can be massive in terms of land conversion and degradation, habitat alteration,
water and air pollution [8]. In Africa, the mining sector is thought to be the second largest source
of pollution after agriculture; the sector is resource intensive and generates high concentrations of
waste and effluents [9]. Mining from exploration to the closing stage has a serious impact on the
environment. This impact can be direct through the value chain activities, prospecting exploration,
site development, ore extraction, mineral dressing, smelting, refining/metallurgy, transportation,
post mining activities and indirectly through the impact of the degradation on the socio-cultural
development of communities. In general, degradation arising from mining includes; air pollution,
water pollution, land and forest degradation, noise pollution, solid and liquid waste disposal of
toxic substances, as well as socio-cultural problems such as health complication, conflicts,
alcoholism, communal clash and inequality [10]. All these have negative implications for
sustainable development and various livelihoods and therefore require urgent attention.
Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
98
Table 3: Minerals Deposits That Are Currently Being Exploited In Nigeria.
S/N
Mineral Name
Locality
Current Level Of
Exploitation
1
Iron
Itakpe, Ajakuta
L
2
Tin
Jos, Plateau, Nasarawa
M S M
3
Niobium/Tantalum
Jos, Plateau, Saki, Oro
Won As By Product Of
Tin Mining
4
Monazite
Plateau
Dormant
5
Xenotine
Itagumodi, Birnin Gwari, Dangabala
S
6
Gold
Ishiagu, Engigba, Ameka, Ameru, Anka
Dormant
7
Lead
Ishalagu, Ameka, Ameri, Ashaka,
Ewekoro
M, Won As By Product Of
Galena Mining
8
Silver
Kalambaina, Igarra, Atte, Ikpeshi,
Dangabala, Okpilla
Won As By Product Of
Lead Mining
9
Zinc
Barum, Igbetti, Igarra, Jakura, Kwakudi,
Okpilla, Ikpeshi
L
10
Lime Stone
Gwoza, Ashaka, Warake, Wurnio, Fika,
Ikpeshi, Gusau, Azare, Omi-Adio,
Ozubulu, Kano, Ikorudu, Legas, Ire,
Naragua
M
11
Marble
Lagos, Ire, Badagry, Igbokoda, Ughetti
S
12
Field Spar
All Part Of The Federation
S
13
Gypsum
All Part Of The Federation
L
14
Barites
All Part Of The Federation
L
15
Clay
Ijero-Ekiti, Jos, Saki, Iyano, Kwali,
Gamboru Ngala
L
16
Glass Sand
Jos, Akwanga
L, M
17
Construction Sand
Jos, Plateau, Akwanga Area
L, M, S
18
Construction
Stones (Latarite)
Jos, Plateau
L, M
19
Beryl
Enugu, Niger Delta
S (Mostly Illegal Mining)
20
Tourmaline
Enugu, Niger Delta
S
21
Sapphire
Enugu, Niger Delta
S
22
Ruby
Enugu, Niger Delta
S
23
Topaz
Enugu, Niger Delta
S
24
Coal
Enugu, Niger Delta, Benue
L
25
Oil And Gas
Niger Delta
L, M
Source: Journal of Physical Science [9].
L=large scale exploitation, M= medium scale exploitation, S= small scale exploitation
Mining is a common practice in Nigeria, the problem with the activity in the country, however,
is the inattention of the miners and the government to proper mining practices which makes
life difficult for the people. And many people because of their low level of education do not know
their environmental obligations under the Minerals and Mining Act, and that the adherence to best
global practices in mining is a vital tool for the promotion of sustainable growth in the industry
[11].
Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
99
IMPACT OF PETROLEUM EXPLORATION
Nigeria like most other developing countries in early part of the 70’s was engaged in intensive
natural resource exploitation as a way of stimulating economic growth, as at 1976 about 20 years
after the start of oil exploration, figures available from federal office of statistics stated that oil has
come to account for about 84% of the national gross domestic product (GDP) of Nigeria, 95% of
the total export and over 80% of government annual revenue [12]. There is no doubt that the
Nigerian oil industry has affected the country in a variety of ways at the same time. On one hand
it has fashioned a remarkable economic development for the country, however on the negative
side petroleum exploration have adverse effects on the environment of the host communities like:
oil spills, extensive deforestation, loss of farms, loss of soil fertility, erosion, gas flaring, intensive
exploitation, contamination of streams and rivers, effluent discharge and disposal, conflict
between oil companies and host communities.
Table 4: Environmental Disturbance Factors and Potential Effects of Off-Shore Petroleum
Exploration
S/N
Exploration Activity
Environmental Disturbance Factor
Potential Effect
1
Seismic
Air gum discharge, chemical
explosives, vessel transits
Displacement or loss of
biota, loss of fishing gear
2
Drilling
Discharge of toxic drilling fluids,
discharge of fines and solids from drill
cuts, noise from drill operation, loss of
well control leading to gas oil spills,
vessel and aircraft traffic
Loss of habitat,
displacement or loss of
biota, tainting of fish and
shell fish, degradation of
beaches, displacement of
fishing activities
3
Well suspension
and abandonment
Debris, vessel and aircraft traffic
Disturbance of biota, loss
of fishing gear,
displacement of fishing
activities
Source: “Environmental Effects of Petroleum Exploration” Ottawa, Canada KIA OH4 [13].
The department of petroleum resources estimated 1.89 million barrels of petroleum were
spilled into Niger delta between 1976 and 1996 out of a total of 2.4 million barrels spilled in 4,835
incidents [14]. A UNDP report states that, there have been a total of 6,817 oil spills between 1976
and 2001, which account for a loss of 3 million barrels of oil which more than 70% was not
recovered, most of these spills occurred offshore (69%), a quarter was in the swamps and 6%
spilled on land [15]. The NNPC places the quantity of petroleum jettisoned into the environment
yearly at 2,300 cubic metres with an average of 300 individual spills annually [16]. However,
because this amount does not take into account “minor” spills, the World Bank argues that the
true quantity of petroleum spilled into the environment could be as much as ten times the officially
claimed quantity, oil spill has a major impact on the ecosystem and the human health [14].
Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
100
Table 5: Oil Spill Data
S/N
year
Number of spill
incident
Quantity spilled (barrels)
1
1976
128
26,157.00
2
1977
104
32,876.25
3
1978
154
489,294.75
4
1979
157
694,117.13
5
1980
241
600,511.02
6
1981
238
42,722.50
7
1982
257
42,841.00
8
1983
173
48,351.30
9
1984
151
40,209.00
10
1985
187
11,876.60
11
1986
155
12,905.00
12
1987
129
31,866.00
13
1988
208
9,172.00
14
1989
195
7,628.161
15
1990
160
14,940.816
16
1991
201
106,827.98
17
1992
367
51,131.91
18
1993
428
9,752.22
19
1994
515
30,282.67
20
1995
417
63,677.17
21
1996
430
46,353.12
22
1997
339
59,272.30
23
1998
390
98,345.00
Total
5,274
2,571,113.90
Source: The Department of Petroleum Resource [17, 18].
Considering the possibility of environmental incidents arising from deliberate acts of
sabotage, extensive contamination of soil and water is to be expected. With frequent rains and a
high water table, the oil contamination could have been carried further down the delta through the
creeks contaminating surface water and river sediments. The contamination of soil, surface water
and ground water in turn would have adverse socio-economic impacts on agriculture and
fisheries [19].
Nigeria also flares more natural gas associated with oil exploration than any other country in
the world and it releases toxic components into the atmosphere and contribute to climate change.
Gas flares have potentially harmful effects on the environment, health and livelihood of the
communities as they release a variety of harmful and poisonous chemicals including nitrogen
dioxides, sulfur dioxide, and volatile organic compound such as benzene, toluene, xylene and
hydrogen sulfide as well as carcinogens like benzapyrene and dioxin which can cause health
complications [14].
THE WAY FORWARD
Sustainable development is a dynamic process and it necessitates continual adjustments to
cope with changes in the economy and the environment. It is recommended that to ensure
Babagana Gutti, Mohammed M. Aji and Garba Magaji, 2012. Environmental Impact of Natural Resources Exploitation
in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
101
environmental sustainability and sustainable development in the exploitation of natural resources,
the concept of material stewardship should be adopted and implemented.
To encourage study and adapt techniques for risk assessment, resource pricing and
exploitation which are favorable to the environment. Environmental Impact Assessment (EIA)
should be well documented, guide lines for implementation should be put in place and undertake
monitoring and evaluation of environmental degradation and carryout environmental reports so
that natural resource exploitation bodies should carry out mandatory precaution, remedies or
compensation for damage done.
The oil and gas sector should ensure the integrity of their pipe lines; follow the guideline
policy of gas flaring and in times of oil spillage the best industrial technology should be employed
to effect remediation.
To establish a system for continuous monitoring of natural resources by the government and
social groups in order to encourage public participation in the activities aimed at sustainable
development of natural resources like: recycling, waste reduction, afforestation, pollution control,
bioremediation and game reserves, and to set up a mechanism for coordination or elimination of
discrepancies arising during the implementation of some policies related to utilization of natural
resources and provide appropriate sanctions.
To establish an information system related to the management, protection and rational
utilization of natural resources under the direction of government and in collaboration with
environmental expert, academia, research institutes, and international organization such as;
United Nations Development Program (UNDP) , Millennium Development Goals (MDG’s), World
Health Organization (WHO), Environmental Protection Agency (EPA).
CONCLUSION
Extraction, exploration and exploitation of natural resources are the backbone of the
national economy. However, the great danger posed by natural resources exploitation is a
problem; factors such as economic development, population growth and urbanization invariably
place greater demands on the planet and stretch the use of natural resources to the maximum.
Use of the natural resources at a rate higher than nature’s capacity to restore itself can result to
environmental degradation, ecological disturbances, destruction of natural flora and fauna,
pollution, global warming and desertification. Everything on our planet are interconnected and
while the nature supplies us with valuable environmental services without which we cannot exist,
we all depends on each other’s actions and the way we treat our natural resources. It’s widely
recognized that we are overspending our natural resources. Perhaps, we should adopt a holistic
view of nature that it is not an entity that exists differently from us, we are an inalienable part of it
and we should care for it in the most appropriate manner by development of effective strategies,
policy formulation, sustainability and plans to maintain the balance between resource usage and
conservation, only then can we possibly solve the environmental problems.
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in Nigeria and the Way Forward.
Journal of Applied Technology in Environmental Sanitation, 2 (2): 95-102.
102
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