Vol. 6, No. 12, p. 297-309 - Apr. 30, 2019
Human health risk assessment of heavy metals from a crude oil polluted agricultural soil in Ogoniland, Nigeria
Chukwuemeka C. Chukwuma , Chigozie Linda Onuah and Michael Okechukwu Monanu
Abstract
Heavy metal contamination of agricultural soils can instigate risk to human health via oral ingestion, particle inhalation, and dermal contact. The study evaluates the concentrations, distribution, and human health risk of various heavy metals in soil samples from crude oil polluted agricultural soil of Ogoniland, Nigeria. Soil samples were collected and analyzed for cadmium, lead, chromium, copper, iron, manganese, zinc, arsenic and mercury using AAS (SensAA). Measured concentrations of these heavy metals were employed to calculate the health risk for children and adults using Hazard Index (HI). For the children and adult population, the HI value for oral ingestion to lead in the polluted site was greater than one (HI > 1), and hence non-carcinogenic effects is considered as significant for human health. It is therefore of the essence to consider taking risk management measures in order to reduce the risk of human health from lead.
Keywords
Risk assessment; Heavy metals; Polluted soil; Hazard quotient; Hazard index; Average daily
intake; Carcinogenic risk; Non-carcinogenic risk.
DOI
10.21472/bjbs.061227
Full text
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References
Ayangbenro, A. S.; Babalola, O. O. A new strategy for heavy metal polluted environments: A review of
microbial biosorbents. International Journal of Environmental Research and Public Health, v. 14,
no. 94, p. 1-6, 2017.
Chukwuma, C. C.; Onuah, C. L.; Nwauche, K. T.; Ohanador, R.; Chukwu, C. N; Enobong, E. Periodic effects
of crude oil pollution on some nutrient elements of soils treated over a 90 day period using Schwenkia
americana L. and Spermacoce ocymoides Burm. f. International Journal of Advances in Scientific
Research and Engineering, v. 4, no. 12, p. 7-15, 2018.
DPR - Department of Petroleum Resources. Environmental guidelines and standards for the petroleum industry
in Nigeria (EGASPIN). Abuja, Nigeria: Ministry of Petroleum and Natural Resources, 2002.
IARC - International Agency for Research on Cancer. Cadmium. In: IARC. Monographs on the evaluation of
carcinogenic risks to humans. Lyon, France: IARC Scientific Publications, 1993. p. 119-238.
Kamunda, C.; Mathuthu, M.; Madhuku, M. Health risk assessment of heavy metals in soils from Witwatersrand Gold
Mining Basin, South Africa. International Journal of Environmental Research and Public Health, v. 13,
p. 663-674, 2016.
Kamunda, C.; Mathuthu, M.; Madhuku, M. Assessment of radiological hazards from gold mine tailings in Gauteng
Province, South Africa. International Journal of Environmental Research and Public Health, v. 13, p. 138, 2016b.
Luo, X. S.; Ding, J.; Xu, B. Incorporating bioaccessibility into human health risk assessments of heavy metals
in urban park soils. Science Total of Environment, v. 424, p. 88-96, 2012.
Mwegoha, W.; Kihampa, C. Heavy metal contamination in agricultural soils and water in Dares Salaam City, Tanzania.
African Journal of Environmental Science and Technology, v. 4, no. 11, p. 763-769, 2010.
NJDEP - New Jersey Department of Environmental Protection. Soil cleanup criteria. New Jersey: NJDEP, 1996.
(Proposed cleanup standards for contaminated sites, NJAC, 7:26D).
Oluseye, O. C.; Ojo, F. P.; Oyewumi, O. M.; Ayodele, O. A. Potential health risk assessment for soil heavy metal
contamination of Sagamu, South-West Nigeria due to cement production. International Journal of Applied Science
and Technology, v. 3, no. 2, p. 89-96, 2013.
Rashid, M. H.; Fardous, Z.; Chowdhury, M. A. Z.; Alam, K.; Bari, L.; Moniruzzaman, M.; Gan, S. H. Determination
of heavy metals in the soils of tea plantations and in fresh and processed tea leaves: An evaluation of six,
digestion methods. Chemistry Central Journal, v. 10, no. 7, p. 2-20, 2016.
Riley, R. G.; Zachara, J. M.; Wobber, F. J. Chemical contaminants on DOE lands and selection of contaminated
mixtures for subsurface science research, US-DOE. Washington, DC: Energy Resource Subsurface Science Program,
1992.
Su, C.; Jiang, L.; Zhang, W. A review on heavy metal contamination in the soil worldwide: Situation, impact
and remediation techniques. Environmental Skeptics and Critics, v. 3, no. 2, p. 24-38, 2014.
Šukalić, A.; Ahmetović, N.; Mačkić, S.; Leto, A.; Džubur, A.; Antunović,
B. Human health risk assessment of heavy metals from the agricultural soil in South Herzegovina. Agriculturae
Conspectus Scientificus, v. 83, no. 1, p. 45-50, 2018.
Tchounwou, P. B.; Yedjou, C. G.; Patlolla, A. K.; Sutton, D. J. Heavy metals toxicity and the environment.
NIH Public Access, v. 101, p. 131-164, 2012.
USEPA - United States Environmental Protection Agency. Risk assessment guidance for superfund.
Volume 1: Human health evaluation manual (Part A). Washington, DC: Office of Emergency and Remedial
Response, 1989.
USEPA - United States Environmental Protection Agency. Toxics release inventory: Public Data
Release Report. 2001. Available from: <http://www.epa.gov/tri/tridata/tri01.
Accessed on: Jan. 07, 2019.
USEPA - United States Environmental Protection Agency. Risk assessment guidance for superfund.
Volume 1: Human health evaluation manual (Part E, Supplemental Guidance for Dermal Risk Assessment).
Washington, DC: USEPA, 2004.
USEPA - United States Environmental Protection Agency. Cadmium compounds. Available from:
<http://www.epa.gov/files/documents/cadmium>.
Accessed on: Oct. 06, 2018.
Wang, X.; Sato, T.; Xing, B. Health risks of heavy metals to the general public in Tianjin, China,
via consumption of vegetables and fish. Science Total of Environment, v. 350, p. 28-37, 2005.
Wuana, R. A.; Okieimen, F. E. Heavy metals in contaminated soils: A review of sources, chemistry,
risks and best available strategies for remediation. ISRN Ecology, v. 2011, p. 1-20, 2011.