Pollution and health risk assessment of road dust from Osogbo metropolis, Osun state, Southwestern Nigeria

Taiwo, Adewale M.; Michael, Johnson O.; Gbadebo, A. M.; Oladoyinbo, Fatai O.

doi:10.1080/10807039.2018.1563478

Cited by 61 publications

(17 citation statements)

References 36 publications

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“…The HEI values in the summer season ranged from 47.32 to 190.31, whereas the HEI values in the winter season ranged from 68.41 to 293.58. Based on the classification proposed by (Taiwo et al 2019), 80% of the examined sites were at low risk (ERI < 150), while 20% were at moderate risk (ERI 150-300).…”

Section: Ecological Risk Assessmentmentioning

confidence: 99%

Comprehensive Evaluation of Some Toxic Metals in the Surface Water of Louhajang River, Bangladesh

Proshad¹,

Zhang²,

Idris³

et al. 2021

Preprint

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Louhajang River, Bangladesh, crosses Tangail, which is a densely industrialized and urbanized city. Louhajang River is an essential water source for domestic, irrigation, and urbanization purposes. This study reports the levels of pH, electrical conductivity (EC), and some toxic heavy metals in 40 water samples collected during summer and winter seasons from Louhajang River. The levels were found to be in the ranges of pH 6.22-7.43 and EC 345-798 mS/cm, Cr 0.18-13.2, Ni 0.02-19.04, Cu 0.96-15.92, As 2.18-12.51, Cd 0.02-2.42, and Pb 0.49-15.74 µg/L. The winter season reported higher levels of the examined parameters than the summer season with significant variation (p < 0.05) for all parameters, with the exception of Cd. The metal contents were assessed against local and international standards for drinking, irrigation and aquatic life purposes where different trends were observed. The heavy metal evaluation index (HEI) and the ecological risk index (ERI) reported low to moderate risks. The spatial distribution of metal contents assigned hot spots in some sites along the riverbed, which were attributed to specific manmade sources. The health risk assessment for three population categories, i.e., adult male, adult female, and children, were examined in terms of hazard index (HI) and total cancer risk (TCR) for oral and dermal pathways during both seasons. Cr and Cd recorded HI more than unit in all cases, indicating possible non-cancer risk. TCR values of As for the three examined population categories during both seasons were > 1.0×10-6, indicating possible cancer risk, while that of Pb were < 1.0×10-6. For Ni, about 10-25% of the sampled sites recorded TCR > 1.0×10-6.

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Section: Ecological Risk Assessmentmentioning

confidence: 99%

Comprehensive Evaluation of Some Toxic Metals in the Surface Water of Louhajang River, Bangladesh

Proshad¹,

Zhang²,

Idris³

et al. 2021

Preprint

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“…HMs can be removed from environmental media (soil, water, sediments) by biological (bioremediation), chemical (precipitation, coagulation, complex formation), and physical ( ltration) techniques. Among these, bioremediation is the most economical (low cost) and environment-friendly(natural process) method (Chibuike and Obiora 2014; Taiwo et al 2020a). Bioremediation involves the use of the living systems (microorganisms and plants) to remove pollutants (organic and/or inorganic) in the environmental media (Taiwo 2011;Taiwo et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Pollution, Ecological, and Health Risk Assessments of Heavy Metal Remediated Soil by Compost Fortified with Natural Coagulants

Taiwo

Oladotun

Alegbeleye

et al. 2022

Preprint

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The present study assessed the pollution, ecological, and health risks of heavy metals (HMs) in remediated soils by compost fortified with natural coagulants (Moringa, Neem, and Pawpaw).The polluted soils were mixed with the stabilized composts at varying ratios of 1:200, 1:100, 1:66, and 1:50. Heavy metals(Cu, Zn, Ni, Mn, Cd, and Pb) were determined in compost and soil samples using Atomic Absorption Spectrophotometry. Data collected were analyzed for descriptive and inferential statistics. Removal efficiencies (REs) of HMs by the compost types were also determined. Results showed Mn as the highest observed HM in composts with values ranging from 179.6 ± 1.25 mg kg− 1 in Neem to 206.3 ± 5.01 mg kg− 1 in Moringa. The levels of HMs (except Zn) observed in composts were generally less than the target values expected in unpolluted soil. Application of the three composts to contaminated soils reduced the HMs by 5–37, 17–47, 25–43, 43–57,59–71, and 69–75% for Cd, Cu, Ni, Pb, Mn, and Zn, respectively. Removal of HMs in contaminated soils followed the distribution pattern of Zn > Mn > Pb > Cu > Ni > Cd. All the compost types were effective in cleaning up Mn and Zn in contaminated soils. However, Moringa appeared to indicate the highest removal efficiency followed by Neem and Pawpaw, in that order.

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“…This will ascertain the extent of contamination and its associated human risk. Human risk assessment of water matches concentration of contaminants with quality standards and health risk bench marks (Mgbenu and Egbueri 2019;Taiwo et al 2019;Ukah et al 2019). Environmental monitoring of ground water employs methodologies like pollution index, carcinogenic and non-carcinogenic risk analysis, contamination degree, metal index (Rahman et al 2020;Makanyandwi et al 2019;Ukah et al 2019;Jahan and Strezov 2017).…”

Section: Introductionmentioning

confidence: 99%

Assessment of Ground Water as Source of Drinking Water in an Agricultural Tropical Environment

Tyopine¹,

Jayeoye²,

Azuoko³

2022

Preprint

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The study conducted in dry and rainy seasons in 2019 assessed the levels of metals in ground water sampled from boreholes and dug wells in Ikwo, south-eastern Nigeria. Nine water samples were analysed for calcium, iron, zinc, copper, manganese, and aluminium using Atomic Absorption Spectrophotometer (AAS). Analysis showed higher metal concentrations in rainy season, except for manganese whose concentration was higher in the dry season. The levels of the metals exceeded permissible limits in both seasons except for calcium. The metal indices were not greater than 2 while all degrees of contamination were less than 1. This collaborative classification of both metal index and degrees of contamination suggest that water samples were safe for human consumption. The health risk evaluated by hazard indices (HI) were categorized into low and medium (≥ 0.1 to < 4) levels of chronic risks. The HI values, evaluated for both children and adults; were predominantly medium for children and low for adults. All indices for water quality evaluation revealed that ground water in the study area is of minimal contamination hence, no immediate threat to health. Therefore, to ensure quality water supply, sustainable monitoring of water quality is recommended in the study area, with continuous environmentally friendly agricultural practices.

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Pollution and health risk assessment of road dust from Osogbo metropolis, Osun state, Southwestern Nigeria

Cited by 61 publications

References 36 publications

Comprehensive Evaluation of Some Toxic Metals in the Surface Water of Louhajang River, Bangladesh

Comprehensive Evaluation of Some Toxic Metals in the Surface Water of Louhajang River, Bangladesh

Pollution, Ecological, and Health Risk Assessments of Heavy Metal Remediated Soil by Compost Fortified with Natural Coagulants

Assessment of Ground Water as Source of Drinking Water in an Agricultural Tropical Environment

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