EXPOSURE OF COWPEA (vigna unguiculata (l) walp) TO SPENT ENGINE OIL CONTAMINATED SOIL AND ITS IMPLICATIONS ON CONSUMER’S HEALTH

African Journal of Health, Safety and Environment

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Title EXPOSURE OF COWPEA (vigna unguiculata (l) walp) TO SPENT ENGINE OIL CONTAMINATED SOIL AND ITS IMPLICATIONS ON CONSUMER’S HEALTH
 
Creator Bello, T. B.
Bolaji , O. M.
Fakunle, F. A.
 
Subject environmental pollution
heavy metals
hazard quotient
SEO
 
Description Spent Engine oil (SEO) is a common environmental pollutant generated after engine services. Disposing SEO is a serious environmental issue in Nigeria as generators end up disposing it in water drain systems, rivers, open vacant plots and agricultural lands. Thus, the need to assess the impact of such disposal on environmental components becomes imperative.  Using a completely randomized design, a control and seven treatments of SEO (T0: 0 ml, T1: 5 ml, T2: 10 ml, T3: 15 ml, T4: 20 ml, T5: 25 ml, T6: 50 ml, T7: 75 ml) were applied to potted soil for cowpea planting. Plant height, leave number, yield, heavy metal load and hazard quotient were assessed. Baseline heavy metal analysis showed the SEO contained lead and cadmium at 0.003 mg/kg and 0.462 mg/kg respectively. There was significant reduction in plant height (T0: 50.72 cm, T3: 37.36 cm, T7:  24.33 cm), number of leaves (T0: 25.91, T3: 21.57, T7: 17.67), seed weight (T0: 24.40 g, T3: 16.38 g, T7: 5.03 g) and plant weight (T0: 171.60 g, T3: 136.60 g, T7: 54.70 g) in contaminated soil with increasing SEO concentration (P<0.05). Cowpea grown on contaminated soil accumulated cadmium in seeds (T0: 0.000 mg/kg, T3: 0.057 mg/kg, T7 0.119 mg/kg) and in roots (T0: 0.000 mg/kg, T3: 0.079 mg/kg, T7: 0.263 mg/kg) with hazard quotient ranging from 0.084 to 0.216. This study revealed that increasing environmental pollution through indiscriminate SEO increases the possibility of health risk by elevating hazard quotient and this should therefore be discouraged.
 
Publisher Applied Environmental Bioscience and Public Health Research Group (AEBPH RG), University of Benin, Benin City
 
Date 2020-10-29
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Identifier https://www.ajhse.org/index.php/ajhse/article/view/81
10.52417/ajhse.v1i2.81
 
Source African Journal of Health, Safety and Environment; Vol 1 No 2 (2020): AJHSE 2020 Second Issue ; 24-36
2695-1819
2695-2386
10.52417/ajhse.v1i2
 
Language eng
 
Relation https://www.ajhse.org/index.php/ajhse/article/view/81/16
10.52417/ajhse.v1i2.81.g16
 
Rights Copyright (c) 2020 Bello et al.,
https://creativecommons.org/licenses/by/4.0/
 

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