Trace metals in intertidal sediment of mangrove-sheltered creeks in Niger Delta, Nigeria: Variability before and after crude oil spillage

2015 ◽  
Vol 9 (4) ◽  
pp. 371-378 ◽  
Author(s):  
Ninibarini Zabbey ◽  
B Benard Babatunde
Keyword(s):  
Trace Metals ◽  
Crude Oil ◽  
Niger Delta ◽  
Intertidal Sediment ◽  
Oil Spillage ◽  
Before And After

scholarly journals Acute toxicity of crude oil from NNPC and artisanal refineries in Niger Delta on selected aquatic biota

2021 ◽  
Vol 15 (3) ◽  
pp. 016-024
Author(s):  
Mobene Eneriene Luke ◽  
Lucky Obukowho Odokuma
Keyword(s):  
Acute Toxicity ◽  
Physicochemical Properties ◽  
Crude Oil ◽  
Aquatic Ecosystem ◽  
Niger Delta ◽  
Toxicity Assessment ◽  
Trophic Levels ◽  
Aquatic Biota ◽  
Oil Spillage ◽  
Test Organisms

The spill of Crude oil from artisanal refineries and government owned pipelines has become recurrent situation in the Niger Delta, leading to devastating effects on the aquatic ecosystem. The toxicity of Crude oil from NNPC (Nigerian National Petroleum Corporation) refinery and selected artisanal refineries in Bolo, Twon-Brass and Ekpemu of the Niger Delta were investigated. The physicochemical properties of the products from the artisanal refineries short fall of the standards of Crude oil for refineries, as they contained impurities. The toxicity of the Crude oil was tested using three representatives of different trophic levels in the aquatic habitat; Fish (Tilapia guineensis), Crusteceans (Paleamonetes africanus), and Moluscs (Tympanotomus fuscatus). The LC50, NOEC, LOEC, and TUa were the indices used for toxicity assessment of the crude oil on the test organisms. The study revealed that all the Crude oil samples were toxic to the organisms. The degree of toxicity of crude oil showed the following trend; Ekpemu (LC50 – 0.02ppt)> Twon-Brass (LC50 – 0.06ppt)> Bolo (LC50 – 0.11ppt)> NNPC (LC50 – 4.63ppt), while the degree of sensitivity was; Tilapia guineensis > Paleamonetes africanus > Tympanotonus fuscatus. The findings further emphasize the need to control Crude oil spillage into the aquatic ecosystem.

scholarly journals Modeling Soil Organic Carbon in Crude Oil Contaminated Soil in the Niger Delta

2019 ◽  
Vol 4 (3) ◽  
pp. 93-96
Author(s):  
LEVI NGOZI NWAKWASI ◽  
B. C. Okoro ◽  
J. C. Osuagwu ◽  
A. N. Nwachukwu ◽  
J. C. Agunwamba
Keyword(s):  
Crude Oil ◽  
Contaminated Soil ◽  
Niger Delta ◽  
Potassium Depletion ◽  
Exploration And Exploitation ◽  
Residual Concentration ◽  
Standard Methods ◽  
Environmental Threat ◽  
Oil Spillage ◽  
Control Samples

Oil spillage is a major environmental threat in south south of Nigeria where most of oil exploration and exploitation activities takes place. If this goes on unchecked or poorly managed, it would lead to total annihilation of the ecosystem. The objective of this study is to develop a model for the prediction of potassium depletion in the crude oil contaminated soil with time using regression analysis. Each sample containing 10kg of soil was artificially polluted with 0.5, 1.0, 1.5, 2.0, and 2.5 liters of crude oil (Bonny Light).  The potassium concentrations were determined using standard methods. Results shows that the concentration of residual potassium in the soil for all the volumes of crude oil introduced into the soil decrees significantly with time when compared to values obtained for the control samples. The concentration of residual concentration in the control soil sample was about three times higher than the concentration obtained for other samples. The results obtained from the derived model were very close to the experimental value. The model is suitable for determining potassium content in crude oil polluted site.

An Empirical Investigation of Factors Affecting Stock Prices in Vietnam

2014 ◽  
pp. 74-89 ◽  
Author(s):  
Vinh Vo Xuan
Keyword(s):  
Exchange Rates ◽  
Crude Oil ◽  
Foreign Exchange ◽  
Stock Prices ◽  
Global Financial Crisis ◽  
Oil Prices ◽  
Foreign Exchange Rates ◽  
Factors Affecting ◽  
Crude Oil Prices ◽  
Before And After

This paper investigates factors affecting Vietnam’s stock prices including US stock prices, foreign exchange rates, gold prices and crude oil prices. Using the daily data from 2005 to 2012, the results indicate that Vietnam’s stock prices are influenced by crude oil prices. In addition, Vietnam’s stock prices are also affected significantly by US stock prices, and foreign exchange rates over the period before the 2008 Global Financial Crisis. There is evidence that Vietnam’s stock prices are highly correlated with US stock prices, foreign exchange rates and gold prices for the same period. Furthermore, Vietnam’s stock prices were cointegrated with US stock prices both before and after the crisis, and with foreign exchange rates, gold prices and crude oil prices only during and after the crisis.

NIGERIA: DELTA OIL EXPLORATION POLITICS AND THE PORTRAYAL OF BRUTAL IMPACT IN YERIMA’S HARD GROUND

2020 ◽  
pp. 21-34
Author(s):  
Uche-Chinemere NWAOZUZU ◽  
Ifeanyichukwu ABADA ◽  
Emeka ANIAGO
Keyword(s):  
Crude Oil ◽  
Niger Delta ◽  
Critical Analysis ◽  
Interdisciplinary Approach ◽  
Oil Exploration ◽  
Political Structure ◽  
Hidden Agenda ◽  
Fault Lines

This study presents an interdisciplinary approach towards a critical analysis of some impacts of crude-oil exploration in Niger Delta and polemics of viable conϐlict resolution framework. This approach involves analysis of Ahmed Yerima’s creative portrayal in Hard Ground which revolves around the variables activating conϐlicting emotional interests in matters concerning ‘black gold’ in Nigeria, and how these variables resonant in debates and demands for Nigeria’s polity restructuring because of perceived resource mismanagement. More so, our scope includes an analytical attempt at illuminating elaborately our interpretation of the dimensions to the loud and shrewd inclinations subsuming what some see as solution to the lingering conϐlict, and the suppositions explaining why others see the debates and demands on polity restructuring as dark convoluted ploys aimed at hidden agenda. Hence, through select theories of victimhood, this study attempts to elucidate on the variables propelling conϐlicting emotional interestsabout oil exploration in Niger Delta, by looking interpretively hard and deep on the perspectives, views and suppositions deϐining the ideologies and inclinations propelling them. In the end, this study notes that the disenchantments and troubles with Nigeria’s polity framework and structure as it relates to oil exploration in Niger Delta are subsumed in Hard Ground’s creativecontribution as a means of assessing the points to the fault-lines that characterize the subsisting socio-political structure upon which Nigeria stands and wobbles.

Dynamic Relationship between Crude Oil and Stock Prices in India: Before And After the Subprime Financial Crisis 2008

GIS Business ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. 96-104
Author(s):  
P. Sakthivel ◽  
S. Rajaswaminathan ◽  
R. Renuka ◽  
N. R.Vembu
Keyword(s):  
Financial Crisis ◽  
Crude Oil ◽  
Stock Prices ◽  
Oil Prices ◽  
Energy Index ◽  
Data Set ◽  
Dynamic Relationship ◽  
Crude Oil Prices ◽  
Long Run ◽  
Before And After

This paper empirically discovered the inter-linkages between stock and crude oil prices before and after the subprime financial crisis 2008 by using Johansan co-integration and Granger causality techniques to explore both long and short- run relationships.  The whole data set of Nifty index, Nifty energy index, BSE Sensex, BSE energy index and oil prices are divided into two periods; before crisis (from February 15, 2005 to December31, 2007) and after crisis (from January 1, 2008 to December 31, 2018) are collected and analyzed. The results discovered that there is one-way causal relationship from crude oil prices to Nifty index, Nifty energy index, BSE Sensex and BSE energy index but not other way around in both periods. However, a bidirectional causality relationship between BSE Energy index and crude oil prices during post subprime financial crisis 2008. The co-integration results suggested that the absence of long run relationship between crude oil prices and market indices of BSE Sensex, BSE energy index, Nifty index and Nifty energy index before and after subprime financial crisis 2008.

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