Evaluating the impact of traffic activities on the heavy metals concentrations along a major highway in Delta State, Nigeria

Agbi, G. G.; Akpokodje, O. I.; Uguru, H.

doi:10.26765/drjphet70711801

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Environmental pollution is the discharge of toxic substances into the environment, which has significant consequences for the natural ecosystem [2][3][4][5][6]. In many countries of the world, pollution resulting from indiscriminate discharge of heavy metals [7,12,13,47] as well as petroleum and its derivatives [32,43,63] into the environment is a major source of environmental pollution.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been carried out to evaluate the effect of automobile workshops on the environment [1,15,37,53,61]. Prominent among the heavy metals released from auto-repair (automobile) workshops are copper, chromium, cadmium, lead, mercury, silver, cobalt, iron, zinc, and arsenic [5,26]. These heavy metals are known to pollute ground water, posing severe health risk to people [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Spatial distribution of heavy metals in groundwater around automobile workshops in a popular Niger-Delta University town, Nigeria

Owamah,

Akpoedafe,

Ikpeseni

et al. 2023

J. Eng. Appl. Sci.

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The research was carried out to assess the concentration and distribution of heavy metals in groundwater from selected automobile workshops in Ozoro metropolis, a busy university town, in the Niger Delta region of Nigeria. The major activities carried out in the sampled automobile workshops include vehicle maintenance, painting, panel beating and fabrication. Nine (9) groundwater samples from the automobile workshops and one control sample 2 km away from the influence area were analyzed. Heavy metal concentration, contamination factor, and pollution loading indices were investigated using geostatistical modeling and statistical analysis tools. Heavy metal concentrations in the various samples were determined in accordance with the Association of Official Agricultural Chemists (AOAC) International guidelines. Findings obtained from the study revealed that the groundwater was affected by leachates from the automobile workshops, as the heavy metal levels in the groundwater from the sampling sites were considerably higher than the reference point. The concentration ranges (mg/L) of the heavy metals were Cd (0.0217–0.0412), Cr (0.0643–0.0901), Cu (0.0599–0.0803), Fe (0.3118–0.4171), and Pb (0.1423–0.1781). The spatial distribution maps showed that the metals spread unevenly across the study area. The pollution indices revealed that groundwater from the sampling sites is moderately polluted with heavy metals and the trend of the pollution load index (PLI) is Cd > Ni > Cu > Mn > Pb > Zn > Fe. Comparing the results with those of international regulatory bodies, the groundwater from the study area was found to still be within the approved range for potable water. However, there is evidence of slight contamination due to the activities of the automobile workshops. This may call for minor treatment before usage, regular monitoring and ensuring that the artisans comply with relevant regulations in their operations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial distribution of heavy metals in groundwater around automobile workshops in a popular Niger-Delta University town, Nigeria

Owamah,

Akpoedafe,

Ikpeseni

et al. 2023

J. Eng. Appl. Sci.

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Toxic metals and aflatoxins occurrence in smoked-dried fish and their health risks assessment

et al. 2023

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This study investigated the microbiological and toxic heavy metals contamination in smoked-dried fish, and evaluates their health risk implications. Fifteen widely consumed fish species were sampled randomly, and their aflatoxins, mercury “Hg,” cadmium “Cd” and lead “Pb” concentrations were evaluated though standard guidelines. The results revealed that fish flesh Hg level ranged from 0.085–0.258 mg/kg, Cd concentration ranged from 0.092–0.204 mg/kg, and Pb level varied from 0.173–0.329 mg/kg; the mean toxic metals level in the freshwater fish tissue was lower, when compared to the levels in the saltwater fish (seafood). Regarding toxic metal toxicity, the average Hg, Cd and Pb estimated daily intake values for children and adult were 0.1200 and 1.63 × 10−5 mg/kg bw/day, 2.13 × 10−4 and 7.57 × 10−5 mg/kg bw/day, and 2.48 × 10−4 and 1.24 × 10−4 mg/kg bw/day respectively. Likewise, children targeted hazard quotients (THQ) values were Hg (0.585), Cd (0.151) and Pb (0.071), while adult THQ values were Hg (0.293), Cd (0.076) and Pb (0.035). Children and adult hazard index (HI) values were 0.949 and 0.404 respectively; while Carcinogenic Risk (CR) values indicated that Cd had higher chances of cancer risks when compared to Pb. Additionally, the aflatoxins level in the fish species ranged from 0.564–9.422 ppb, with the seafood having lower aflatoxins level when compared to the freshwater fish species. Aflatoxins estimated daily intakes (EDI) exposure was 4.81 × 10−3 and 2.41 × 10−3 μg/kg bw/day for the children and adults respectively; while the aflatoxins HI value for children was 7.300 × 10−4, and for adults was 7.293 × 10−4. Health risks assessment of heavy metal accumulation in the fish, for both children and adults portrayed insignificant adverse health effects (THQ < 1), through the oral consumption of the fishes. Aflatoxins level detected in the all fishes was within acceptable limits (10 ppb) as approved by the World Health Organization; however, some of the values for freshwater fishes were above the allowable limit (2 ppb) approved by the European Union. Though, the results depicted a very low risk of toxic metals and aflatoxins poisoning, there is the need for proper evaluation of current fish processing and storage methods to prevent human exposure to toxic metals and aflatoxins introduced through smoked-dried fish consumption.

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Assessment of Spatial Variability of Heavy Metals (Pb and Al) in Alluvial Soil around Delta State University of Science and Technology, Ozoro, Southern Nigeria

Uguru¹,

Akpokodje²,

Agbi³

2021

Turkish Journal of Agricultural Engineering Research (TURKAGER)

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Soil heavy metals pollution is a major global threat, because of its impact to plants, animals, and the soil geotechnical properties. Geostatistical method was used to investigate the spatial distributions of aluminum and lead within a section of the Delta State University of Science and Technology, Ozoro, Nigeria. A total area of 1 km2 (100 hectares) was covered within the school environment. Twenty -five (25) topsoil samples were collected, at the end of the dry season (March 2021); when the water table in the study area was very low. The lead and aluminum concentrations of the 25 samples were measured by using the Association of Official Analytical Chemists (AOAC) approved methods. Using a geostatistical tool, the lead and aluminum concentrations and distribution in the soil were plotted on predication maps. The maps revealed irregular spatial distributions of lead and aluminum ions within the study area. The lead concentration was highest at the North-central region of the study area; while lead concentration was lowest at the Eastern region of the study area. In terms of the aluminum metal, the highest aluminum concentration was observed in the North eastern region; while aluminum concentration was lowest at the South western region. Data obtained from this study will be useful for agricultural and civil engineering purposes, mainly in the area of decision-making.

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Evaluating the impact of traffic activities on the heavy metals concentrations along a major highway in Delta State, Nigeria

Cited by 3 publications

References 15 publications

Spatial distribution of heavy metals in groundwater around automobile workshops in a popular Niger-Delta University town, Nigeria

Spatial distribution of heavy metals in groundwater around automobile workshops in a popular Niger-Delta University town, Nigeria

Toxic metals and aflatoxins occurrence in smoked-dried fish and their health risks assessment

Assessment of Spatial Variability of Heavy Metals (Pb and Al) in Alluvial Soil around Delta State University of Science and Technology, Ozoro, Southern Nigeria

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