Seasonal evaluation of chemical compositions of dust fall at motor parks in a Nigerian university campus

Nwosu, Friday Onyekwere; Olayinka, O. D.

doi:10.1007/s13762-019-02296-5

Cited by 5 publications

(4 citation statements)

References 35 publications

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“…It had been earlier stated by a good number of researchers that Iron occurs in high proportion in Nigeria soils. This implies that there are contributions from industrial and vehicular activities [1,16]. In addition, the anthropogenic activities in this study could be attributed to the rusting of petroleum storage tanks [49,50].…”

Section: Level Of Heavy Metals In Various Soil Samples From Both Depotsmentioning

confidence: 99%

“…Pollution indices are very important for monitoring soil quality in order to ensure the sustainability of agro ecosystems [12]. The popularly used pollution indices for heavy metals by various studies includes; geoaccumulation index, contamination factor, ecological risk factor, ecological risk index, degree of contamination, pollution load index, potential ecological risk index, metal enrichment factor among others [13][14][15][16][17]. Few previous studies such as [18] as well as [19] have reported high level of heavy metals in water from vicinity of petroleum depots.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Pollution Levels of Soils Within Petroleum Depots in Nigeria

Nwosu¹,

Olulegan²,

Olayinka³

et al. 2021

JCSN

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The petroleum depots are housing facilities for the erected petroleum storage tanks, which serve the purpose of keeping petroleum products. The threats posed by the storage tanks on the environment cannot be overlooked. Levels of chemical components of soil around the storage tanks of Nigerian National Petroleum Corporation (NNPC) depots in Kwara and Oyo States were assessed using exposure limits, health standards as well as pollution indices. Parameters such as pH, Electrical Conductivities (EC) and heavy metals (Fe, Cd, Pb, Cr, Cu, Zn, Mn, Co and Ni) were determined in the soil around the storage tanks of the depots using standard methods. Average levels of heavy metals in soil followed the decreasing order Fe > Zn > Mn > Pb > Ni > Cr > Cu > Co > Cd for Kwara Petroleum depot and Fe > Zn > Mn > Pb > Ni > Cr > Co > Cu > Cd for Oyo Petroleum depot. Zn (1.77 mg/g) and Mn (1.13 mg/g) were respectively above the regulatory limit of FEPA (0.75 mg/g and 0.48 mg/g), permissible limits of WHO (0.3 mg/g and 0.05 mg/g) and maximum permissible limits of USEPA (0.2 mg/g and 0.08 mg/g) for Kwara Petroleum depot. Fe was above the regulatory limit of FEPA (5.0 mg/g) for both depots. Oyo Petroleum depot had considerable degree of contamination (17.444) of heavy metals while Kwara Petroleum depot had a very high degree of contamination (42.325) of heavy metals. Metal Pollution Index values (1.351 and 1.632) for Oyo Petroleum depot and Kwara Petroleum respectively indicated pollution in both depots. The Pearson Correlation (at 0.05 significant level) showed significant correlation between most heavy metals which signified that they were likely from the same source. Installation of primary treatment plant or proper maintenance measures are recommended to be put in place.

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Section: Level Of Heavy Metals In Various Soil Samples From Both Depotsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of Pollution Levels of Soils Within Petroleum Depots in Nigeria

Nwosu¹,

Olulegan²,

Olayinka³

et al. 2021

JCSN

Self Cite

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“…Moreover, human activities contribute to the increase in the levels of metal contamination in the road dust due to vehicle exhaust particles, tire wear particles, weathered street surface particles, brake lining wear particles, emission from power plants, coal combustion, metallurgical industry, auto repair shop and chemical plant (Nasser et al, 2012). Other anthropogenic activities include domestic emission, weathering of building and pavement surface, atmospheric deposition and so on (Nwosu and Olayinka, 2019). Accumulation of heavy metals in the soil disrupts the usual biochemical processes taking place in it, which can in consequence have a negative effect on the biological activity (Zawadzka and Lukowski, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Various studies in Nigeria like that of Mafuyai et al, (2015) had observed Cu concentration to range from 24.5 -67.0 mg/kg, Pb 25.0 -66 mg/kg, Ni 1.23 -3.88 mg/kg, Zn 35.0 -123 mg/kg, Fe 48.5 -125 mg/kg, Cd 1.54 -2.58 mg/kg, Mn 1.15 -2.58 mg/kg and Cr 1.13 -2.79 mg/kg in the roadside dust from five major traffic roads in Jos metropolitan area which showed that accumulation of heavy metals in soil dust was greatly influenced by traffic volume and there was a significant reduction in roadside dust when moving away from the road. A study carried out by Nwosu et al, (2016) to measure the heavy metal loading in dust fall from some universities in Nigeria and that carried out by Nwosu and Olayinka (2019) for chemical components of dust fall at various motor parks in the University of Ilorin had shown higher levels of metals. However, a minute study have been carried out to measure heavy metals in the road side dust in school campuses especially, University of Ilorin, Nigeria.…”

Section: Introductionmentioning

confidence: 99%

March 2020

2020

Nig. J. Env. Sci. & Tech.

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University of Ilorin is one of the most populated Universities in Nigeria. Roadside dust was collected from the busiest roads of the university permanent site and level of heavy metals (Fe, Cu, Zn, Cd and Pb), organic carbon and physico-chemical properties of the dust were assessed. Atomic Absorption Spectrometry (Buck Scientific 210/211VGP) was used to analyse for heavy metals while appropriate standard methods were employed for the determination of organic carbon, pH, conductivity, particle density and bulk density of the roadside dust. The pH of dust from all roads was almost alkaline (7.2-7.6), particle density ranged from 1.60-2.14 gml-1 , bulk density ranged from 1.03-1.62 gml-1 , electrical conductivity ranged from 0.25 to 0.57µScm-1 , organic carbon (OC) content of all roadside dust ranged from 0.9 %-1.2 %. While Pb was obtained to be absent in all the roadside dust samples, it was observed that the abundance of other heavy metals at all the various sampling points and control followed the order Fe >>>Zn >> Cu > Cd. The average level of Fe in the control site was 2443.85 mg/kg which was very lower to that from other sites in the study. The results for the metal pollution index (MPI) show that all the roads were polluted with Fe, Cu, Zn and Cd. The levels of the metals showed a dependence on anthropogenic pollution such as vehicle density compared with the control site.

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