Assessment of Polycyclic Aromatic Hydrocarbons in the Biophysical Environment of Anya-Ogologo River, Rivers State, Nigeria
DOI:
https://doi.org/10.60787/ijrti.vol2no2.6Keywords:
Polycyclic aromatic hydrocarbons, Niger Delta, source apportionment, bioaccumulation, cancer risk, environmental pollutionAbstract
Polycyclic aromatic hydrocarbons (PAHs) pose significant environmental and health risks in the Niger Delta, where oil pollution has degraded aquatic ecosystems. This study assessed Polycyclic aromatic hydrocarbons (PAHs) contamination in the Anya-Ogologo River, Rivers State, Nigeria, focusing on water, sediments, and periwinkles (Tympanotonus fuscatus) to evaluate pollution levels, sources, and human health risks. The study findings revealed severe Polycyclic aromatic hydrocarbons (PAHs) contamination, with total concentrations in water ranging from 0.72 to 8.65 mg/L (exceeding moderate pollution thresholds) and sediments from 1.76 to 8.47 mg/kg. Periwinkles showed bioaccumulation of low-molecularweight Polycyclic aromatic hydrocarbons (PAHs) (0.34 mg/kg). Diagnostic ratios indicated pyrogenic dominance (Phen/Anth >1, Flth/Py >1), with negligible petrogenic input (BaA/Chry = 0). Probabilistic risk assessment estimated elevated cancer risks, particularly for children (ILCR >10^-6^), via dermal and inhalation pathways. Conclusively, the study highlights severe Polycyclic aromatic hydrocarbons (PAHs) pollution in the Anya-Ogologo River, primarily from combustion sources, posing significant ecological and health risks. Urgent remediation and policy interventions are needed to mitigate exposure.Downloads
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[1] Montano, L., Baldini, G. M., Piscopo, M., Liguori, G., Lombardi, R., Ricciardi, M., Esposito, G., Pinto, G., Fontanarosa, C., Spinelli, M., Palmieri, I., Sofia, D., Brogna, C., Carati, C., Esposito, M., Gallo, P., Amoresano, A., & Motta, O. (2025). Polycyclic Aromatic Hydrocarbons (PAHs) in the Environment: Occupational Exposure, Health Risks and Fertility Implications. Toxics, 13(3), 151. https://doi.org/10.3390/toxics13030151
[2] Orecchio, S., Gianguzza, A., & Culotta, L. (2008). Absorption of polycyclic aromatic hydrocarbons by Pinus bark: analytical method and use for environmental pollution monitoring in the Palermo area (Sicily, Italy). Environmental research, 107(3), 371–379. https://doi.org/10.1016/j.envres.2008.02.010
[3] Abdulai, P. M., Bede-Ojimadu, O., Onyena, A. P., Frazzoli, C., Mogborukor, N. A., Ekhator, O. C., Udom, G. J., Nwanaforo, E., & Orisakwe, O. E. (2025). Public Health Effects of Polycyclic Aromatic Hydrocarbons Exposure Through Air, Water, Soil, and Food in Ghana: Possible Economic Burden. Environmental health insights, 19, 11786302251343767. https://doi.org/10.1177/11786302251343767.
[4] Nwiido, N. J., Ezejiofor, V. C., & Nwigbo, S. C. (2023). "Heavy Metals in Water and Sediment of a Perturbed Urban River in Port Harcourt, Nigeria: A Potential Ecological Risk Assessment." Journal of Applied Sciences and Environmental Management, 27(4), 779-787.
[5] Smetanová, S., Jbebli, A., Kohoutek, J., Puklová, V., Černá, M., Krsková, A., Zvonař, M., Reguli, Z., Andrýsková, L., Piler, P., Přibylová, P., Klánová, J., Price, E. J., & Komprdová, K. (2025). Changing pattern of exposure to polycyclic aromatic hydrocarbons over time in the Central European population. Journal of exposure science & environmental epidemiology, 10.1038/s41370-025-00793-z. Advance online publication.
https://doi.org/10.1038/s41370-025-00793-z
[6] The Tide Newspapers. (2022). "Wike Flags Off Construction of N17b Indorama-AgbonchiaOgologo Road." The Tide: Rivers State Newspaper.
[7] Minnikova, T. V., Denisova, T. V., Mandzhieva, S. S., Kolesnikov, S. I., Minkina, T. M., Chaplygin, V. A and Bauer, T. V. (2017). Assessing the effect of heavy metals from the Novocherkassk power station emissions on the biological activity of soils in the adjacent areas. Journal of Geochemical Exploration, 174, 70-78.
[8] Dong, C. D., Chen, C. F. and Chen, C. W. (2012). Determination Of Polycyclic Aromatic Hydrocarbons In Industrial Harbor Sediment By GC MS. International Journal of Environmental Resources Public Health, 9, 2175 – 2188.
[9] Grimsditch, G., & Salm, R. V. (2012). Coral Reefs in a Changing Climate: Impacts, Vulnerabilities, and Adaptation Mechanisms. Gland, Switzerland: IUCN. Retrieved from https://portals.iucn.org/library/sites/library/files/documents/2012-055.pdf.
[10] Onwurah, I. N. E., Ogugua, V. N., Onyeike, N. B., Ochonogor, A. E and Otitoju, O. F. (2007). Crude Oil Spills in The Environment, Effect
and Some Innovative Clean-Up Biotechnologies. International Journal of Environmental Resources, 1(4), 307 – 320.
[11] Onwurah, I. N. E., Ogugua, V. N., Onyeike, N. B., Ochonogor, A. E and Otitoju, O. F. (2007). Crude Oil Spills in The Environment, Effect
and Some Innovative Clean-Up Biotechnologies. International Journal of Environmental Resources, 1(4), 307 – 320.
[12] Blenkinsopp, S., Coyle, D. R., & Hancock, G. J. (2019). Crude Oil Toxaphene Ratios Distinguish Freshwater Mussels within a Contaminated System. Environmental Science & Technology Letters, 6(12), 766-771. https://doi.org/10.1021/acs.estlett.9b00649
[13] Smith, C. (2021). Oil spills and their detrimental effects on food crops in agricultural areas. Journal of Sustainable Agriculture, 18(4), 245-259.
[14] Collins, J. F., Brown, J. P., Dawson, S. V., & Marty, M. A. (1991). Risk assessment for benzo[a]pyrene. Regulatory toxicology and pharmacology : RTP, 13(2), 170–184. https://doi.org/10.1016/0273-2300(91)90020-v
[15] Nwiido, N. J., Ezejiofor, V. C., & Nwigbo, S. C. (2023). "Heavy Metals in Water and Sediment of a Perturbed Urban River in Port Harcourt, Nigeria: A Potential Ecological Risk Assessment." Journal of Applied Sciences and Environmental Management, 27(4), 779-787.
[16] Thyssen, J., Althoff, J., Kimmerle, G., & Mohr, U. (1981). Inhalation studies with benzo[a]pyrene in Syrian golden hamsters. Journal of the National Cancer Institute, 66(3), 575–577.
[17] Hussain, M., Rae, J., Gilman, A., & Kauss, P. (1998). Lifetime health risk assessment from exposure of recreational users to polycyclic
aromatic hydrocarbons. Archives of environmental contamination and toxicology, 35(3), 527–531.
[18] Agilent Technologies, Inc. (2015). Application Note: Rapid Separation of PAHs Using an Agilent ZORBAX Eclipse PAH Column
(Publication Number 5991-4917EN).
[19] Boehm, P., & Saba, T. (2008). Identification and allocation of polycyclic aromatic hydrocarbons (PAHs). Exponent Environmental Forensic Notes, 4, 1-5.
[20] Anyakora, C., Coker, H.A., & Arbabi, M. (2011). Application Of Polynuclear Aromatic Hydrocarbons in Chemical Fingerprinting: The
Niger Delta Case Study. Iranian Journal of Environmental Health Science & Engineering, 8, 75-84.
[21] Goudarzi, G., Baboli, Z., Moslemnia, M., Tobekhak, M., Tahmasebi Birgani, Y., Neisi, A., Ghanemi, K., Babaei, A. A., Hashemzadeh,
B., Ahmadi Angali, K., Dobaradaran, S., Ramezani, Z., Hassanvand, M. S., Dehdari Rad, H., & Kayedi, N. (2021). Assessment of incremental lifetime cancer risks of ambient air PM10-bound PAHs in oil-rich cities of Iran. Journal of environmental health science & engineering, 19(1), 319–330. https://doi.org/10.1007/s40201-020-00605-6
[22] OEHHA. (1993). Benzo [a] pyrene as a Toxic Air Contaminant. Part B. Health Effects of Benzo [a] pyrene. California Environmental
Protection Agency, Office of Environmental Health Hazard Assessment, Air Toxicology and Epidemiology Section.
[23] International Agency for Research on Cancer (IARC) (1987) Monographs on the evaluation of carcinogenic risks to humans, suppl 7.
IARC, Lyon, p 42
[24] Malcolm, H. M., & Dobson, S. (1994). The Calculation of an Environmental Assessment Level (EAL) for Atmospheric PAHs Using
Relative Potencies; Department of the Environment, London.
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