Waste management: impact on metal accumulation and speciation in Aba River channel, Nigeria

Ebong, Godwin Asukwo; Etuk, Helen S.; Dan, Emmanuel; Onukwubiri, Margaret A.

doi:10.1080/12269328.2019.1663278

Cited by 4 publications

(4 citation statements)

References 47 publications

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“…The third factor added 7.3% to the total variance with a strong impact by TSS, DO and nitrate (Table 5). This signifies the negative influence of anthropogenic activities on the quality of the studied aquatic ecosystem 119,120 . The fourth factor contributed 4.6% to the overall variance with a significant impact by Ni.…”

Section: Multivariate Analysis Of Parameters Determined In the Studie...mentioning

confidence: 91%

Physicochemistry of Iko River Channel in Nigeria and the Related Human Health Problems

Tombere,

Okokon Okon,

Ebong

et al. 2023

Asian J. Biol. Sci

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Background and Objective: Potable water is essential for all lives on earth however, the quality of water available in the oil producing area of Nigeria has been seriously degraded. This work was conducted at Nda Uko, Kampe, Utapete Flow Station, Iko, Emereoke and Jaja Creek along Iko River to establish its pollution status, cancer and non-cancer health risks associated with human exposure to the river. Materials and Methods: During this study, water samples were obtained at Nda Uko, Kampe, Utapete flow Station, Iko, Emereoke and Jaja Creek along Iko River in Eastern Obolo, Nigeria. Collection of samples was done for twelve months and a total of thirty-six composite samples were obtained and used for this study. Some parameters were determined in situ while other parameters were analysed in the laboratory using appropriate equipment. Samples for dissolved oxygen (DO), Biochemical Oxygen Demand (BOD) and chemical oxygen demand (COD) were obtained using brown BOD bottles while samples for metals analysis were treated with 1 mL of concentration HNO 3 before analysis. Data and multivariate analyses were performed with IBM SPSS Statistics 20. Results: The TDS, DO, EC, turbidity, TH, ClG, SO 4 2 G, NO 2 G, PO 4 3 G, Fe, Ni, Pb, Cd and Mn were higher. This was attributed mainly to the anthropogenic factor. Daily intake rates of Cd and Pb obtained were higher than the recommended reference daily doses. The Cd and Pb showed high potential for the non-cancer risks in both the children and adult populations. The total hazard indexes for both populations were higher than one. Cancer risks of Ni, Cd and Cr were very high however, the children were more susceptible. Conclusion: The total cancer risks (TCR) for both populations were higher than the acceptable limit with Ni being the main contributor.

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Section: Multivariate Analysis Of Parameters Determined In the Studie...mentioning

confidence: 91%

Physicochemistry of Iko River Channel in Nigeria and the Related Human Health Problems

Tombere,

Okokon Okon,

Ebong

et al. 2023

Asian J. Biol. Sci

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“… Cluster one groups beer processing company (BPC) and construction company machinery yard (CCMY) together  Cluster 2 connects Crude oil processing (COPC) and Metal processing company (MPC) into a similar group  The third cluster contains Crude Oil processing Company (COPC) only. This is a clear manifestation of the fact that, BPC and CCMY might have discharged similar contaminants; APC and MPC released similar contaminants, while COPC released greater amounts of peculiar air contaminants into the surrounding air environment [66,67].…”

Section: Hierarchical Cluster Analysis (Hca) Of Air Pollutants and Th...mentioning

confidence: 96%

Impacts of varied industrial activities within southern Nigeria on air environment and human health

Godwin Asukwo EBONG,

Idongesit Bassey ANWETING,

Helen Solomon ETUK

et al. 2023

GSC Adv. Res. Rev.

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The contamination of air environment by industrial activities is a global problem mostly in the underdeveloped and developing Nations where environmental issues are handled with levity. This research investigated the impact of industrial activities on air environment at the following companies; Crude Oil processing (COPC), beer processing (BPC), asphalt processing (APC), metal processing (MPC), and construction Company machinery Yard (CCMY) in Southern Nigeria. Air Monitors were employed to quantify nitrogen (IV) oxide (NO2), sulphur (IV) oxide (SO2), hydrogen sulphide (H2S), cabon (II) Oxide CO, total volatile organic carbon (TVOC), and suspended particulate matter (SPM) at the studied locations. The mean values of NO2, SO2, H2S, and CO obtained at all the industrial locations were higher than their recommended limits by the Federal Environmental and protection Agency (FEPA) except at BPC. The mean levels of TVOC were higher than the limit at all the locations apart from BPC and CCMY. However, the mean levels of SPM at all locations were higher than the permissible limit. The general trend for the discharge of air pollutants indicated that, COPC and BPC were rated the highest and lowest, respectively. The air quality index (AQI) values obtained revealed that, all the air pollutants at all the locations except BPC were harmful to human health. Nevertheless, the mean AQI value of SPM at BPC was also in the hazardous class. The Principal component analysis (PCA) confirmed that, industrial activities at the studied locations were responsible for the accumulation of these toxic substances in the adjoining air environment. Hierarchical cluster analysis (HCA) for the air pollutants corroborated that most of the parameters were from a common source. HCA for the studied locations indicated similarities between BPC and CCMY, APC and MPC, while COPC was in a separate cluster. Thus, this study has shown the effects of untreated gases released from industries into the air on the environment and appropriate measures should be adopted to ameliorate the trend.

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“…The first source (PC1) with Eigen value 4.13 contributed 68.78% of the total variance with significant positive loadings on Mn, Cu, Zn, Pb, and Cd (Table 5). This represents the negative impact of human activities on the quality of the aquatic channels examined and their sediments, [75,83]. The second source has Eigen value of 1.12 and added 18.60% to the total variance with strong positive loading on Fe only.…”

Section: Seasonal Variations Of Trace Metals In Sediments From the St...mentioning

confidence: 99%

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2023

World J. Adv. Pharm. Med. Res.

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The concentrations of Mn, Fe, Cu, Zn, Pb, and Cd in sediments from Great Kwa, Calabar, Cross River, Imo, and Qua Iboe Rivers were investigated during the dry and wet seasons using standard techniques. Results indicated that the mean concentrations of all the metals were within their acceptable limits although; higher concentrations were obtained during the wet season. Cd was the major contaminant in the studied sediments; the ecological risks of all the metals except Cd were in the low class. The potential ecological risks of the metals were in the low and moderate categories during the dry and wet seasons, respectively. Sediments from Qua Iboe River exhibited very high human health risks for both seasons. Factor analysis revealed anthropogenic and natural factors as the major sources of these metals in sediments from the rivers investigated for both seasons. The estimated daily intake (EDI) rates of these metals via exposure to the studied sediments were within their recommended oral reference doses however; higher wet season values were recorded. The hazard index (HI) values of the trace metals were less than one (1) but, higher during the wet season. Pb and Cd were the major contributors to the total HI during the dry and wet seasons. The relative risk analysis for both seasons also confirmed Cd as the major human risk in the studied sediments. This research has exposed the levels of trace metals and their associated human risks in sediments from the rivers investigated.

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Waste management: impact on metal accumulation and speciation in Aba River channel, Nigeria

Cited by 4 publications

References 47 publications

Physicochemistry of Iko River Channel in Nigeria and the Related Human Health Problems

Physicochemistry of Iko River Channel in Nigeria and the Related Human Health Problems

Impacts of varied industrial activities within southern Nigeria on air environment and human health

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