ASSESSMENT OF POLLUTION STATUS OF IMO RIVER, SOUTH EASTERN NIGERIA
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 3000
ABSTRACT
Globally the environment has been over the years faced with the challenge natural and anthropogenic waste management which affects water, sediment, fish and humans. These issues necessitated this work aimed at assessing the pollution status of upper part of Imo River, South Eastern Nigeria. This work was carried out using three parameters: physico-chemical, heavy metals concentration and PAHs analysis in three media namely: water, sediment and biota (fish). Triplicate batches of the samples were taken from three sampling points along the river coast and the physicochemical parameters analyzed in-situ and in the laboratory using gravimetric, titrimetric and spectrophotometric methods. The concentrations of heavy metals (Fe, Cd, Ni, Zn, Pb, Cu and V) in water, sediment and muscle of 2 fish species (Tilapia and Cat fish) from Imo River were analyzed using atomic absorption spectrophotometer. The results obtained were compared with both local and global standards for water, fish and sediments. The sixteen (16) priority polycyclic aromatic hydrocarbon (PAHs) were also investigated in water, sediment and fish (Tilapia and Cat fish) using gas chromatography coupled with mass spectrophotomer(GC-MS). Carcinogenic and non-carcinogenic risk models, Pearson correlation multivariate analysis of variance (MANOVA) were used to analyze the inter-relationship amongst water, sediment and fish. Seasonal variation and correlation matrix (ANOVA) of heavy metals were analyzed. The results showed that most of the parameters analyzed fall within the permissible limit except turbidity, conductivity, biochemical oxygen demand (BOD) and phosphate with mean values of 14.50NTU, 128µs/cm, 6.54mg/L and 0.5mg/L respectively which exceeded WHO and USEPA permissible limits of 5NTU, 100µs/cm, 5mg/L and 0.1mg/L. Sand was predominant in sediments with mean particle size distribution of 60.11% sand, 26.27% silt, 13.62% clay. The mean concentration of heavy metals in water from Imo River was Fe (0.019), Cd (0.0087). Pd (0.0188), Ni (0.149), Zn (0.0915), Cu (0.02) and V (0.017) while for sediment the values were Fe (1.005), Cd (0.0164). Pd (0.0575), Ni (0.055), Zn (3.185), Cu (0.99) and V (0.048) mg/kg. The mean values of heavy metals in the two fish samples were 3.925, 0.000415, 0.041, 0.055, 0.3615, 0.055, ND in Tilapia and 5.925, 0.057, 0.05, 0.0525, 0.685, 0.15 and ND in cat fish for Fe, Cd, Ni, Zn, Pb, Cu and V respectively. The mean values of LMW-PAHs in water, sediments and fishes were 0.0198, 0.1095 and 0.067 respectively while the mean values of HMW- PAHs in water, sediments and fishes were 0.072, 0.0128 and 0.006 respectively. Some of the PAHs concentration measured were within the WHO recommended limits while some PAHs such as naphthalene (0.0648), chrysene (0.0852), benzo (a) pyrene (0.300), and indeno (1, 2, 3, cd) pyrene (0.015), measured exceeded the recommended limit of (0.014), (0.000218), (0.005), and (0.0015) respectively. The cancer risk indices obtained from this study ranged from 10-2 to 10-4. The questionnaire administered on the pollution status of Imo River showed no evidence of cholera outbreak but gastroenteritis The results obtained from this study showed that Imo River was moderately polluted at the time of this investigation.
Related Project Materials
EXAMINING THE IMPACT OF EARLY CHILDHOOD EDUCATION ON COMMUNITY DEVELOPMENT
ABSTRACT: This study examined the Impact of Early Childhood Education on Community Development. The objectiv...
THE ROLE OF MANAGEMENT ACCOUNTING IN CORPORATE GOVERNANCE
ABSTRACT:
This study investigates the role of management accounting in corporate governance in Lagos St...
PRODUCTION OF BIO ETHANOL FROM SELECTED AGRO WASTE USING SACCHAROMYCES CEREVISIAE STRAIN CBS 1171 AND LACTOBACILLUS DELBRUECKII STRAIN
ABSTRACT
The production of bioethanol from selected agro waste (banana and cassava) peels was examined using Saccharomyces cerevisiae str...
DEVELOPMENT OF FUNCTIONAL MATERNITY APPARELS FROM COMMERCIAL BLOCKS PATTERNS, FASTENERS AND DISPOSAL OF FULLNESS IN FEDERAL CAPITAL TERRITORY ABUJA, NIGERIA
ABSTRACT
The study focused on theuse ofFasteners and Disposal of Fullness in the Development of Functional Maternity Apparels from Commer...
MISREPRESENTATION OF AFRICA IN BROADCASTING MEDIA
Background of the study
Communication has been an effective tool of conveying knowledge throughout hist...
AN EMPIRICAL ANALYSIS OF THE EFFECT OF COVID-19 PANDEMIC ON MARRIAGE SUSTAINABILITY
BACKGROUNG OF THE STUDY
Marriage is a formal and legal union of a man and a woman by which they become...
THE ROLE OF MANAGEMENT ACCOUNTING IN SUSTAINABILITY REPORTING
Abstract:
This study investigates the role of management accounting in sustainability reporting in Lago...
A STUDY OF SALIVA AND CHEEK CELLS DNA EXTRACTION WITH THE USE OF HOUSEHOLD CHEMICALS
1.1 BACKGROUND OF THE STUDY
Genomic DNA is an essent...
DESIGN, CONSTRUCTION AND TESTING OF AN IMPROVED CASTING POURING LADLE
ABSTRACT
A ladle is a foundry tool or equipment specially designed to pour molten metal into a prepared mould. The pouring rate or consis...
FACTORS AFFECTING WRITTEN COMPOSITION IN SOME SELECTED SECONDARY SCHOOLS: A CASE STUDY OF EGOR LOCAL GOVERNMENT AREA, BENIN CITY, EDO STATE
ABSTRACT
This study is a survey of factors affecting written composition among selected secondary schools in Egor Local...
