Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria

Ganiyu, S. A.; Mabunmi, Afolabi A.; Olurin, O. T.; Adeyemi, Azeem Adedeji; Jegede, O. A.; Okeh, Anthony

doi:10.1007/s10661-021-08910-9

Cited by 18 publications

(11 citation statements)

References 49 publications

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“…W i signifies the unit weight of heavy metal was assigned according to the formula, 18,23 A quality rating for heavy metals was obtained using Eq. 3 (Table 2).…”

Section: Heavy Metal Pollution Indexmentioning

confidence: 99%

“…17 In recent years, a variety of methods have been used for assessing heavy metal pollution in water along with its effects of it on human health, including the use of polluting manifestations like heavy metal pollution index (HPI), degree of contamination (Cd), heavy metal evaluation index (HEI), & health risk assessments like non-carcinogenic and carcinogenic. 18 These are valuable tools for water quality decision-makers, ecologists, and civil authorities. Since they provide an overall pollution level index and surface water quality status.…”

Section: Introductionmentioning

confidence: 99%

“…21 Numerous studies on the heavy metal pollution indices & risk assessing in ground and surface water have been published in various parts of the world. 3,18,22,23,24 Ganiyu 18 sought to assess the contamination status of hand-dug wells along the Ona River in terms of human and ecological health threats. All examined water samples were found to be "practically unpolluted" to "somewhat contaminated" in terms of integrated pollution indexes.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of health risk and heavy metal pollution status in the Bhima River water Kalaburagi, Karnataka, India

Chinmalli

Vijaykumar

2023

Curr. World Environ

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The current investigation aimed to examine the present status of pollution in the Bhima River using indices (degree of contamination, heavy metal evaluation index, & heavy metal pollution index) and health risk assessment (non-carcinogenic & carcinogenic) by choosing some heavy metals like copper (Cu), chromium (Cr), manganese (Mn), cadmium (Cd), nickel (Ni), lead (Pb), & zinc (Zn). Eight samples of surface water were collected monthly from October 2021 to September 2022 and analyzed by an atomic absorption spectrometer. The absorptions of heavy metals into sequence Mn > Zn > Cu > Pb > Ni > Cr > Cd have been observed. Pb, Cd, and Ni concentrations were considerably higher in samples collected near sewage runoff and along bridges. The calculated pollution indices indicate that five of the eight sampling sites are extremely polluted. Carcinogenic & Non-carcinogenic dangers were tabulated for adults, children, & infants according to the quantity of heavy metal content in an average daily consumption of water. For adults, children, as well as infants, the estimated non-carcinogenic standards were 3, 5, and 2, respectively. The computed carcinogenic risk levels for Pb, Cd, and Ni exceed the 10-6-10-4 acceptable limit. Indices and risk assessment values suggest that river water is not acceptable for ingestion by all age groups. Additionally, principal component analysis and cluster analysis disclosed that agricultural runoff, lead battery usage, sewage sludge, and bridge construction were the foremost sources of water quality degradation in the study zone. The development of a public drinking water supply is advised by this research to lessen negative impacts of heavy metal poisoning upon human health. Before making the water available for use by the public, it needs also be treated.

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“…W i signifies the unit weight of heavy metal was assigned according to the formula, 18,23 A quality rating for heavy metals was obtained using Eq. 3 (Table 2).…”

Section: Heavy Metal Pollution Indexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of health risk and heavy metal pollution status in the Bhima River water Kalaburagi, Karnataka, India

Chinmalli

Vijaykumar

2023

Curr. World Environ

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“…The occurrence of heavy metals has become a global contemporary dilemma since these potential toxicants have wide sources, a very long biological half-life, and possess indestructible properties and an accumulative nature (Boateng et al, 2015;Mashiatullah et al, 2016;Rahman et al, 2020;Ganiyu et al, 2021;Varol et al, 2022). Additionally, metals cannot be eliminated from the groundwater system as a result of selfcleaning and can lead to geo-accumulation, bioaccumulation, and bio-magnification (Ward, 1995;Loska and Wiechuła, 2003;Ustaoğlu and Aydın, 2020).…”

Section: Introductionmentioning

confidence: 99%

GIS-based assessment of selective heavy metals and stable carbon isotopes in groundwater of Islamabad and Rawalpindi, Pakistan

Rana

Ali

Ashraf

et al. 2022

Front. Environ. Sci.

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This study applied a nuclear technique in conjunction with a classical monitoring tool to characterize the origin, fate, and behavior of metal pollutants in groundwater of Islamabad-Rawalpindi Metropolitans, which are also known as the “twin cities.” In total, 122 groundwater samples were collected and analyzed in accordance with standard methods. GIS and multivariate statistical analysis were employed for the groundwater vulnerability assessment and source apportionment. The results of the aesthetic parameters indicated that the majority of groundwater sources were tested and were colorless, odorless and tasteless in the “twin cities.” In addition, the findings of this study indicated that the concentration of pH, phosphates, copper, manganese, and zinc were within the drinking water standards in the “twin cities” as stipulated by the World Health Organization (WHO) and Pakistan Standard and Quality Control Authority (PSQCA) at all sampling points in the study area. The groundwater quality was found unsuitable for consumption due to elevated levels of electrical conductivity and total dissolved solids at 9.83% and 4.09% of samples, respectively. The contents of arsenic and fluoride were well within the allowable range at almost all points except at one location. However, iron and lead contents were above permissible limits. A statistical analysis revealed that trace metals originated from both geogenic and anthropogenic sources such as enhanced rock-water interaction, over abstraction, evaporation enrichment, improper waste disposal, discarded batteries, cross contamination of water supply and sewerage lines, active recharge from Lie drain, and domestic, industrial, and agricultural effluents. The computed water quality index (WQI) based on heavy metals elucidated that groundwater quality was poor in most of the study area due to elevated electrical conductivity, total dissolved solids, lead, iron, arsenic, and fluoride values. A highly depleted isotopic composition of 13C provides clues about the aquifer’s vulnerability from miscellaneous sources such as domestic, urban, construction, and agricultural sites and the dissolution of carbonate minerals. This study clearly indicates that a rapidly growing population, unplanned urbanization, industrialization, improper waste disposal, over abstraction, and a lack of water abstraction policies are significantly contributing toward the impairment of groundwater quality in the study area. The study strongly emphasized the need to regulate groundwater abstraction by improving water treatment and the supply system for the provision of safe water to the urban populace. These results will help in designing remedial strategies for improving water quality in the “twin cities.”

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“…B a c t e r i aProteobacteria, Omnitrophia, Patescibacteria, Rokubacteria, Nitrospirae, Cyanobacteria 4 China (Jianghan Plain)[25] B a c t e r i aCampylobacter sp., E. coli, L. pneumophila, L. rubrilucens, L. feeleii, L. anisa, V. cholera 5 Southwest Nigeria[26] Bacteria Fecal coliform, E. coli, Fecal Streptococci Protozoa Cryptosporidium spp., Giardia duodenalis assemblage…”

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confidence: 99%

Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options

et al. 2021

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Purpose of Review This paper reviews various low-cost treatment techniques such as adsorption, permeable reactive barrier, and biological techniques for the simultaneous removal of chemical and microbial contaminants from groundwater and discusses treatment mechanisms of different treatment techniques. This paper also discusses the challenges of groundwater treatment, how to choose the appropriate treatment technique, and cost analysis of groundwater treatment. Recent Findings Various treatment technologies have been used for the treatment of groundwater: physical, chemical, and biological technologies with different success rates. In the literature, various adsorbents have been successfully synthesized from low-cost and environmentally friendly materials. Adsorption is considered an efficient treatment technique for the removal of both toxic elements and pathogens by utilizing different adsorbents. For example, the nanostructures of MgO with a BET surface area of up to 171 m2/g obtained a very high adsorption capacity of 29,131 mg/g for fluoride ions in water, while the incorporation of iron in activated carbon has improved its adsorption capacity to 51.3 mg/g for arsenic. Moreover, certain adsorbents have shown the capability to remove 99% of the rotavirus and adenovirus from groundwater. Summary Groundwater resources are contaminated with toxic metals and pathogens. Therefore, water treatment technologies should be evaluated for their efficiency to remove such contaminants. Determination of the most cost-effective and efficient treatment technique is not an easy task and requires the understanding of various aspects such as the contaminants present in water, the reuse options considered, and cost analysis of the treatment technique.

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Assessment of microbial and heavy metal contamination in shallow hand-dug wells bordering Ona River, Southwest Nigeria

Cited by 18 publications

References 49 publications

Evaluation of health risk and heavy metal pollution status in the Bhima River water Kalaburagi, Karnataka, India

Evaluation of health risk and heavy metal pollution status in the Bhima River water Kalaburagi, Karnataka, India

GIS-based assessment of selective heavy metals and stable carbon isotopes in groundwater of Islamabad and Rawalpindi, Pakistan

Removal of Toxic Elements and Microbial Contaminants from Groundwater Using Low-Cost Treatment Options

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