scholarly journals Determination of Physicochemical Parameters of Effluents at Discharge Points into the New Calabar River along Rumuolumeni Axis, Port Harcourt, Rivers State, Niger Delta, Nigeria

Author(s):  
Edori OS ◽  
Nna PJ
2020 ◽  
Vol 6 (2) ◽  
pp. 23-28
Author(s):  
O. A. F Wokoma ◽  
◽  
O. S Edori ◽  

Wastewater samples were collected from an oil industry at the point of discharge for a period of two years, from January 2018 – December 2019. The wastewater samples were analyzed for different physicochemical parameters such as temperature, turbidity, total dissolved solids (TDS), total suspended solids (TSS), conductivity, pH, alkalinity, salinity, total hydrocarbon content (THC), biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to examine their conformity to fulfill requirements as recommended by World Health Organization (WHO), Federal Ministry of Environment (FME) and Drinking Water Association (DWA). The results indicated that all the parameters in the discharged wastewater were within acceptable limits of the regulatory bodies. The field data showed that the investigated firm conformed to the law by carrying out proper procedures before discharging the effluents into the public drain and river. Therefore, the release of wastewater from the industry doesn't constitute a danger to the environment as well as aquatic organisms. Keywords: Physicochemical parameter, wastewater discharge, oil industry, environment, contaminants


2021 ◽  
Vol 9 (3) ◽  
pp. 039-047
Author(s):  
Edori ES ◽  
Iyama WA ◽  
Awari JO

The levels of physicochemical properties of Mini Whuo Stream in Port Harcourt, Rivers State, Nigeria was evaluated. The physicochemical parameters were analyzed using standard conventional procedures. The average values recorded for the physicochemical parameters during the months of investigation were in the range; temperature; 30.00±0.42-30.26±0.83oC, with all-round mean of 30.14±0.47oC, pH; 6.22±0.33-6.42±0.25 (6.29±0.29), electrical conductivity; 146.01±74.04-147.26±75.13µS/cm (146.58±74.69 µS/cm), total alkalinity; 61.63±6.37-62.20±6.41mg/L (61.91±6.41 mg/L), sulphates; 109.67±51.34-110.67±51.88mg/L (110.22±51.81 mg/L), nitrates; 12.20±2.38-12.60±2.86mg/L (12.31±2.65 mg/L), turbidity; 49.32±1.49-50.18±2.02 NTU(49.83±1.55 NTU), TDS; 74.20±36.43-75.61±37.50 mg/L (75.00±36.81 mg/L), TSS; 27.14±2.12-28.37±0.78mg/L (27.64±1.89 mg/L), chlorides; 15.17±2.90-15.66±2.70mg/L (15.34±2.65 mg/L) and salinity; 24.36±4.83-24.82±4.97mg/L (24.66±4.78 mg/L). The evaluation of the physicochemical parameters showed that the Mini Whuo Stream has been contaminated due to human activities within the stream and therefore adequate measures should be taken to forestall the present situation of the stream in order to mitigate any possible increase in deterioration of the studied physicochemical parameters in the stream beyond acceptable limit.


Author(s):  
Waribo, Helen Anthony ◽  
George, Daye Mandy ◽  
Selbut, Selchak Danjuma

Arsenic, a naturally occurring element seen in the environment and cycled by water has been seen to be a pollutant in soil, water and air. The inorganic form of arsenic is associated with major health problems and cancer mainly arising due to its anthropogenic activities. The content of arsenic was assayed in six rice brands sold in Port Harcourt, Rivers State, Nigeria. The rice samples were ground to powdered forms and subjected to acid digestion before analysis. The Agilent Micro Plasma Atomic Emission Spectrophotometer (MP-AES) was used to analyze the digested samples. Results showed mean arsenic concentration in Vico Rice, the highest as 1.0073. This was followed by Local Rice 0.9420, Marori Benz 0.9140, Golden Stallion Rice 0.861 and the Cap Rice 0.8077 while the least mean concentration of arsenic was recorded in African Princess Rice 0.6417, all in mg/kg. The mean concentration was significantly different in the six brands of rice (P<0.05). The arsenic content in the different rice brand was within the tolerable concentration of 1.4 mg/kg as in cereals and vegetables. This concentration did not exceed the Maximum Permissible Limit of 1 mg/kg hence considered safe for consumption except Vico rice with a higher concentration above 1 mg/kg. This shows that rice brands sold in Port Harcourt pose no health risk for consumers with respect to arsenic content.


2019 ◽  
Vol 4 (3) ◽  
pp. 190-195
Author(s):  
Barinyima Nkoi ◽  
Animia Ajor Wordu ◽  
Fortune Worgu

This research applies Project Evaluation and Review Technique (PERT) model to estimate acceptable duration for execution of each activity having random variable of time and some probability distribution for sand dredging operation in Niger Delta. The study takes into account proper planning, scheduling, controlling and allotment of dredging activities time using a project network model PERT. The model evaluated how acceptable time and saving cost could be achieved in a scenario of activities having random time variables. Readily available data of activities time from 2014 – 2017 were used to analyze the time estimate for various activities at a selected dredge site Aleto-Eleme in Port Harcourt metropolis Rivers State-Nigeria. The PERT was applied for the data analysis, to construct the PERT scheme for the dredging operations. Finally, parametric control for project evaluation and review techniques of acceptable time for the dredging activities were determined.


Author(s):  
Serekara Gideon Christian ◽  
Evelyn Mgbeoma Eze ◽  
Anthony Chijioke Uzoanya Ezimah ◽  
Fiekumo Igbida Buseri

Aim: The aim of the study was to determine the frequency of occurrence and percentage distribution of Kell blood group antigens in indigenes of Ogoni ethnic group of Rivers State, Nigeria. Study Design:  This was a cross-sectional study carried out among indigenes of Ogoni whose first generational parental origin is Ogoni. A total of 101 subjects (49 females and 52 males), within the age of 30–60 years were recruited for the study and they were apparently healthy and free from transfusion transmissible infections upon serological screening. Place and Duration of Study: Ogoniland is located in an area along the Niger Delta Eastern edge, and to the north-east of the Imo River and Port Harcourt city. Ogoniland covers about 1036 Sq Km and borders the Bay of Guinea. All participants were recruited in Bori. Bori is the traditional headquarter of Ogoni. Bori is located on latitude: 4040ʹ34.64ʺ N and longitude: 7021ʹ54.68ʺ E. The analysis was carried out at the Post Graduate Laboratory of Rivers State University, Nkpolu-Oroworukwo, Port Harcourt, Rivers State, Nigeria. Port Harcourt, the capital of Rivers State, is located on latitude 4.750N and longitude 7.000E and lies along Bonny River in the Niger Delta. All subjects were recruited the same day and their blood samples collected on 2nd October, 2019, and analysis conducted on 3rd October, 2019. Methodology: Identification of Kell blood group antigens was done using Anti-Kell monoclonal reagent, prepared by Lorne Laboratories Ltd, UK. Lot No: 76090-A5; Expiry Date: 2021/02/21. Phenotyping of red cells was done using tube method as described by Lorne Laboratory Ltd. Results: The result showed zero frequency of occurrence and percentage distribution of Kell blood group antigen in the studied population (49 males and 52 females). Conclusion: The presence of Kell blood group antigens in indigenes of Ogoni recruited for the study which serve as representative of the Ogonis was rare. It is therefore necessary to take into cognizance that haemolytic transfusion reactions due to Kell antigens and antibodies will rarely occur, and as such Kell blood group is not significant in blood transfusion and in antenatal and blood group serology amongst the Ogonis.


Author(s):  
Ibioku Elekima ◽  
Aniekan Inokon

Aim: The aim of the study was to correlate anthropometric data with atherogenic indices of students in Rivers State University, Port Harcourt as a means of assessing their cardiovascular health. Study Design: A pilot study was carried out in Rivers State University, Port Harcourt in Rivers State, Nigeria. The study was conducted within a period of 4 months (June – September, 2018). A total of 82 students were selected from the recruitment process after consenting to participate in the study. Atherogenic indices (after determination of lipid parameters values) and anthropometric measurements were done at the Department of Medical Laboratory Science, Rivers State University, Port Harcourt, Nigeria. Methodology: Five millitres (5mls) of fasting blood samples were collected into lithium heparin bottles and spun at 3500 rpm for 5 minutes to obtain plasma. Total cholesterol (TC) and Triglyceride (TG) were assayed based on enzymatic methods. High density lipoprotein (HDL) was assayed using precipitation and enzymatic method while low density lipoprotein (LDL) was calculated using Friedewald equation. After determination of lipid parameters, atherogenic indices were computed as ratios of these lipid parameters. Anthropometric measurements were collected using stadiometer, non-stretchable tape and weighing scale. Results: Significant increases were seen in both atherogenic indices and anthropometric data of obese (OBS) and overweight (OVW) students compared to ideal weight (NOM) students. Correlation of anthropometric data with atherogenic indices in obese (OBS) students indicated significant positive correlation between WC with NHDL and CRI-2 as well as between WHR with NHDL, AC, CRI-1 and CRI-2. Conclusion: Obesity is a strong factor among students that induces atherogenic hyperlipoproteinaemia and thus, CVD risks. Also, WHR and WC correlates strongly with atherogenic indices such as NHDL, AC, CRI-1 and CRI-2 and therefore, were seen as better and sensitive anthropometric parameters for predicting cardiovascular risks compared to WHtR and BMI.


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