Concentration of Potentially Toxic Elements in the Clinical Waste Dumpsites in Ebonyi State, Southeast Nigeria: Its Evaluation and Policy Dimension

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N. C. Eze
R. N. Eze
A. P. Agu


Background: Clinical wastes are potentially toxic elements (PTE) and harmful microorganisms which can infect health workers and their patients. They comprise both biodegradable and non-biodegradable elements. Clinical waste management (CWM) is the control of all waste generated in the hospitals using professional methods that help to prevent the spread of ailments. This study therefore evaluated the concentration of potentially toxic elements (PTE) in the clinical dumpsites in Ebonyi State.

Materials and Methods: The PTE studied were chromium (Cr), lead (Pb), and nickel (Ni). Samples were collected from three major hospitals namely Federal Teaching Hospital Abakaliki (FETHA), Rural Improvement Mission (RIM), and Matar Hospitals in Ebonyi North, Central and South senatorial zones respectively. A total of fifteen samples were collected in addition to control samples. Four samples from each of the hospital dumpsites. The samples were dried, digested, filtered, and analyzed for PTE using Atomic Absorption Spectrophotometer (Shimadzu; AA-7000).

Results: At FETHA, the concentration of Cr was 37.00 mg/kg while lead concentration varied from 51.00-19.40 mg/kg and Ni concentration ranged from 9.60-21.74 mg/kg. At R.I.M Hospital, the concentration of Cr varied from 18.50-37.00 mg/kg, the Pb concentration varied from 51.00-207.40 mg/kg while Ni concentration ranged from 7.20-21.70 mg/kg. The concentration of Cr at Matar hospital was observed to be relatively constant at 18.51 mg/kg while the concentration of Pb varied from 6.48-2832.00 mg/kg, and Ni concentration ranged from 2.40-14.50 mg/kg. The result also showed that in the control samples, Cr concentration ranged from 0.07-0.50 mg/kg, while the concentration of Pb and Ni varied from 0.40-0.96 mg/kg, and from 0.07-0.06 mg/kg respectively.

Conclusion: The concentration of PTEs in the clinical waste dumpsites of these facilities was high and therefore constituted a potential health risk to man and his environment. Environmental health officers should be charged with more responsibilities to ensure healthy environment and safety.

Concentration, potentially toxic elements, clinical waste dumpsites, evaluation, policy dimension.

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Eze, N. C., Eze, R. N., & Agu, A. P. (2020). Concentration of Potentially Toxic Elements in the Clinical Waste Dumpsites in Ebonyi State, Southeast Nigeria: Its Evaluation and Policy Dimension. Asian Journal of Medical Principles and Clinical Practice, 3(3), 8-14. Retrieved from
Original Research Article


World Health Organization Fact Sheet. Healthcare Waste. World Health Organization (WHO); 2015.


Elom NI. Healthcare Solid Wastes Management Protocols in Nigeria and Implications for Human Health Risk – A Review. Continental J. Environmental Sciences. 2013;7(1):11-19.

Anozie OB, Anozie UJ, Lawni OL, Mamah E, Ajah LO, Nwali MI. Knowledge of Occupational Hazards and Post Exposure Prohylaxis by Hospital Cleaners to HIV and Other Blood Borne Pathogens: Findings from Ten Hospitals in Abakaliki, Nigeria. American Medicine Research. 2016;4(2): 29-33.

Lars J. Hazards of Heavy Metal Contamination. British Medical Bulletin. 2013;68:167-182.

World Health Organization. Training Module in Clinical Waste Management. World Health Organization (WHO); 2015.


Ngouakam H, Aniekan UU, Onojeta AF. Management of Socio Clinical Wastes in Some Hospital in Akwa Ibom State, Nigeria. International Journal of Natural and Applied Sciences. 2010;6(1):13-15.

Emmanuel J. Compendium of Technologies for Treatment/Destruction of Healthcare Waste. United Nations Environment Programme (UNEP) Division of Technology, Industry and Economics. International Environmental Technology. 2012;105-197.

Keller C, Dunham S. Trace metal leaching through a soil-grassland system after sewage sludge application. Journal of Environment Quality. 2012;31(5):1550-1560.

Rajeswari TR. Impact of heavy metal on environmental pollution. national seminar on impact of toxic metal minerals and solvents leading to environmental pollution. J. Environ. 2014;175-181.

Sahel PT, Mahin R, Abdolali R, Androghaeh K. A study on concentration of heavy metals (Pb, Ni, Cu, Fe and Zn) in Liver and Muscle Tissue of Laoch Fish (Paracobitis Rhabinea) in Sistan’s Chahnimeh Reverviors, Iran: Journal of Novel Applied Sciences. 2013;11:644- 649.

Papanikolaou NC, Hatzidaki EG, Belivanis S, Tzanakakis GN, Tsatsakis AM. Lead Toxicity Update. A Brief Review. Med Sci Monitor. 2015;11(10):35-41.

Brannen L. Best Management Practices for Hosptial waste (Rev Ed.). Spokane Aquifer Joint Board and Washington State Department of Econology, Hazardous Waste and Toxics Reduction Program, United States of America. 2015;3-57.

Emmanuel J, Rushbrook P, Stringer R. Safe Management of Wastes from Health-Care Activities (2nd Ed.). Geneva, Switzerland: World Health Organization (WHO). 2014;31-34.

Healthcare Environmental Resource Center (HERC). Treatment and Disposal of Regulated Clinical Waste; 2015.