Evaluation of aquatic macro-invertebrate populations: a model for emergent bio-monitoring guide for quantifying uncleanness of some Rivers in Northern Central Nigeria

Olomukoro, John Ovie; Anani, Osikemekha Anthony

doi:10.4314/njtr.v14i2.7

Cited by 6 publications

(11 citation statements)

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“…This finding is similar to the work by Naveedullah Hashmi et al (2014) on the evaluation of Siling surface reservoir in China which linked human activities as one of the major sources of water contamination. This was also collaborated by the woks of Anani & Olomukoro (2018) , Kumar, Singh & Ojha (2018) , Olomukoro & Anani (2019) , and Olatunji & Anani (2020) . More so, the findings from the WQI in this study revealed that the water was influenced by seasonality and Cd sourced from agronomic influence.…”

Section: Discussionmentioning

confidence: 91%

“…On the other hand, when the water parameters were compared with the WHO standards for drinking water, the findings of this study revealed ecological parameters like water temperature, turbidity, dissolved oxygen, biological dissolved oxygen, phosphate, iron, manganese, nickel, and lead which were lesser than the WHO (2004 , 2008 ) standard limits. The contents of the physicochemical and heavy metal record in this river ecosystem were observed to be a function of anthropogenic activities located close to the river ( Anani & Olomukoro, 2018 ; Kumar, Singh & Ojha, 2018 ; Olomukoro & Anani, 2019 ; Olatunji & Anani, 2020 ).…”

Section: Discussionmentioning

confidence: 97%

“…However, there are some environmental tendencies, several factors that can elevate and impact its background concentrations. These water bodies are often influenced by pollutants caused by natural and human activities ( Kazi et al, 2009 ; Giridharan, Venugopal & Jayaprakash, 2010 ; Sener, Sener & Davraz, 2017 ; Anani & Olomukoro, 2018 ; Kumar, Singh & Ojha, 2018 ; Olomukoro & Anani, 2019 ). The degradation of the quality of water by these activities makes it unfit for defined purposes set for its usage.…”

Section: Introductionmentioning

confidence: 99%

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Probabilistic risk assessment and water quality index of a tropical delta river

Anani

Olomukoro

2021

PeerJ

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Water plays a major role in supporting the wellness and life processes in living things as well as in the ecological structure’s stabilities. However, several environmental scientists have recounted the alarming menace unfit water quality portends as well as the shortfalls of its global utilization in various spheres of life. This study aims to determine the fitness of the Ossiomo River and its likely health risk impact when consumed or used for other domestic purposes. The outcome of the physicochemical and heavy metal characterization showed that most of the parameters surpassed the slated benchmarks. Findings from the study revealed a significant difference (p < 0.05) for water temperature, color, TDS, BOD5, HCO3, Na, Fe, Mn, and THC across the four stations respectively. Meanwhile, pH, salinity, turbidity, TSS, DO, Cl, P, NH4H, NO2, NO3, SO4, Zn, Cu, Cr, Ni, Pb, and V showed no significant (p > 0.05) across the four stations respectively. The pH level of the water was slightly acidic at the range of 4.40–6.82. The outcome of the computed water quality index showed that station 1 (66.38) was poor for human ingestion which was above the set slated benchmarks of 26–50. However, stations 2–4 (163.79, 161.79, and 129.95) were unsuitable for drinking which was above the set slated benchmarks of 100. The outcome of the health risk evaluation revealed that the hazard quotients (HQs) were considered greater than 1 (>1) for Cr (2.55). The hazard index (0.46) via the dermal pathway was <1 while the ingestion (4.35) pathway was >1. The sum of the HQs (4.81) was also > 1. Thus, there are possible non-carcinogenic health risks via direct ingestion of the water. The outcome from the carcinogenic risk for Pb, Cr, and Cd (6 × 10–3, 4.00 × 10–1, and 1.22 × 100), was somewhat greater than the target goal (1.0 × 10–6 to 1.0 × 10–4) of carcinogenic risks stipulated by the United States Environmental Protection Agency for drinking water, respectively, especially for Cd. There might be a potential carcinogenic risk if the water is consumed when the metal contents are higher than the target limits set. Sustainable farming and treatment of wastes from industrial outputs should be the main management of this watercourse.

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Probabilistic risk assessment and water quality index of a tropical delta river

Anani

Olomukoro

2021

PeerJ

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“…So it is pertinent to carry out an assessment of water that has been perceived to be polluted by various human activities to determine its integrity and safeguard the ecosystem of living biotas. Hence, several scientists have employed different forms of assessments to monitor aquatic ecosystems with considerable levels of pollution (Kaizer and Osakwe, 2010;Ahmad et al, 2012;Dami et al, 2012;Anani and Olomukoro, 2018;Olomukoro and Anani, 2019;Olatunji and Anani, 2020).…”

mentioning

confidence: 99%

“…They are associated with or live in the bottom of woods, vegetation, stones, the root system of mangrove trees, canoes, boats, sediments, streams, seas, rivers, ponds, and lakes (Olomukoro and Egborge, 2003). Examples of such organisms are Mollusca, Crustacea, Polychaeta, and insects (Olomukoro and Anani, 2019). Olomukoro and Egborge (2003) and Olomukoro and Anani, (2019) revealed that these benthos or benthic macroinvertebrates are perfect biological indicators of a perturbed ecosystem and are highly recommended for water quality management.…”

mentioning

confidence: 99%

Water quality evaluation using physicochemical and biological indices to characterize the integrity of the Orogodo River in sub-Saharan Africa

Olomukoro¹,

Obi-Obueze²,

Eko-Imirianye³

et al. 2022

Front. Environ. Chem.

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The preliminary consequence of pollutants in water is to reduce the quality of water although this may not be immediately noticeable because of the self-purifying ability of some water bodies. The study on the physicochemical characteristics, bacteriological, and macrobenthic invertebrates was carried out in the Orogodo River. All the examined physicochemical characteristics of the water showed no significant difference (p > 0.05) across the stations. For the heavy metals, it was in decreasing order as follows: station 2 > station 3 > station 1. All the heavy metals except nickel had high values upstream (station 1). Bacteriological examination of the water revealed the presence of mesophilic bacteria across the stations at p < 0.01 (a highly significant difference). E. coli varied significantly (p < 0.01) across the stations. However, a further evaluation using the DMR test revealed that the population recorded at station 3 was significantly higher than that recorded at stations 1 and 2. A total of 787 macrobenthic invertebrates comprising 44 macroinvertebrates’ taxa were recorded. Most of the macrobenthic faunas observed were distributed across the three stations except the chironomids, the rat-tailed maggot (Eristalis tenax), and the family Hirudinea whose occurrence was almost restricted to station 2. This revealed an ecological impact because this species is a basic indicator of an ecosystem sentinel. Sorenson’s quotient of faunal similarity showed that macrobenthic fauna at these three stations was similar. The similarity was the highest between stations 1 and 3 (75.0%) and the lowest between stations 1 and 2 (50.0%). The biological monitoring working party (BMWP) score system showed that station 2 was moderately polluted, while stations 1 and 3 were only slightly affected. At stations 1, 2, and 3, the arithmetic WQI (water quality) values were 900.99, 1010.10, and 951.20, respectively. The high values of WQI obtained across the stations were attributable to the concentrations of Fe, Cu, Cr, Cd, Ni, Pb, V, and THC, thus reiterating the conclusion drawn from the physicochemical parameter analysis. Boiling the water before consumption is highly recommended to avoid possible human health problems, especially effects from microbial pathogens like coliforms and E. coli.

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