Review Article

Prevalence of Occupational Exposures in Ethiopia: Systematic Review


Because, today, the world is suffered from chronic diseases which their etiologies are chemical and psychosocial hazards. Among them, the cancer and respiratory problems are the common which challenges of both developed and developing countries. Majority of its exposures are workplace. These challenges are very common in developing countries like Ethiopia. Similarly, the main objectives of this was to explore the prevalence of the occupational exposures in Ethiopia. Systematic review was applied to search scientific articles based on keywords, titles, and other searching strategies. All searching engines were applied like PubMed, web of science, Scopus, embase and google scholar. Eligibility criteria was conducted based on the exclusion and inclusion rules. Occupational exposure in Ethiopia is very vast and complicated since its sources are not quietly addressed whereas occupational health services at workplace is infant stage. The literatures review conducted also revealed that occupational exposures to variety of the hazards were highly prevalent in occupational respiratory symptoms followed by needle stick and sharp materials injuries, especially for health care workers. The occupational dust exposures are significantly happened in both cement and coffee processing factories. The researches related to occupational lead and pesticides exposures are almost none, which needs attention in the next research gaps. Occupational exposure with radon at workplace was associated with a 2.62% increase (95% CI 2.52%; 2.73%) in mortality, independent of PM2.5 exposure which large mortality risks were observed among individuals from respiratory, cardiovascular and metabolic diseases which has highest association with others health problems. Preliminary assessment and environmental cleaning with appropriate protective device might be decreased the exposure. According to this review analysis, the occupational exposure with respiratory symptom was prevalence (85%) in cement factories followed by 78% in coffee processing factory. There was no intervention taken by the reviewers to indicate the reducing level of the exposure. However, as were recommended by the original researchers of those reviewed articles, wearing of protective devices and conditioning of the working environments can be reduce the exposure level of the workers at workplace. Pre intervention to workplace hazards is very important to minimize the exposure level at workplace and to reduce the cost of treatments. From these results point of view, conditioning(ventilating) the workplace, providing protective devices and designing appropriate engineering controls to minimizing the exposures  levels are  the key  factors to reduce medical costs.

1. Lorenzo-Gonzalez M, Torres-Duran M, Barbosa-Lorenzo R, Provencio-Pulla M, Barros-Dios JM, Ruano-Ravina A. Radon exposure: a major cause of lung cancer. Expert Rev Respir Med. 2019:1-12.
2. Alali AE, Al-Shboul KF, Bani Yaseen Q, Alaroud A. Assessment of radon concentrations and exposure doses in dwellings surrounding a high capacity gas turbine power station using passive measurements and dispersion modeling. Journal of environmental radioactivity. 2019;196:9-14.
3. Gulson BL, Mizon KJ, Dickson BL, Korsch MJ. The effect of exposure to employees from mining and milling operations in a uranium mine on lead isotopes--a pilot study. The Science of the total environment. 2005;339(1-3):267-72.
4. Burkart W. [Radiation exposure and risk of radon in the room air of Swiss houses]. Sozial- und Praventivmedizin. 1986;31(1):55-9.
5. Yitshak-Sade M, Blomberg AJ, Zanobetti A, Schwartz JD, Coull BA, Kloog I, et al. County-level radon exposure and all-cause mortality risk among Medicare beneficiaries. Environment international. 2019;130:104865.
6. Hanssen VM, Nigatu AW, Zeleke ZK, Moen BE, Bratveit M. High prevalence of respiratory and dermal symptoms among Ethiopian Flower Farm Workers. Archiv Environ Occup Health. 2015;70(4):204-13.
7. Negatu B, Kromhout H, Mekonnen Y, Vermeulen R. Occupational pesticide exposure and respiratory health: a large-scale cross-sectional study in three commercial farming systems in Ethiopia. Thorax. 2017;72(6):498-9.
8. Nigatu AW, Bråtveit M, Deressa W, Moen BE. Respiratory symptoms, fractional exhaled nitric oxide & endotoxin exposure among female flower farm workers in Ethiopia. Journal of Occupational Medicine and Toxicology. 2015;10(1).
9. Sharew NT, Mulu GB, Habtewold TD, Gizachew KD. Occupational exposure to sharps injury among healthcare providers in Ethiopia regional hospitals. Annals of occupational and environmental medicine. 2017;29.
10. Yasin J, Fisseha R, Mekonnen F, Yirdaw K. Occupational exposure to blood and body fluids and associated factors among health care workers at the University of Gondar Hospital, Northwest Ethiopia. Environmental Health and Preventive Medicine. 2019;24(1).
11. Gebremariyam BS. Determinants of occupational exposure to blood and body fluids, healthcare workers' risk perceptions and standard precautionary practices: A hospital-based study in Addis Ababa, Ethiopia. Ethiopian Journal of Health Development. 2019;33(1):4-11.
12. Belachew YB, Lema TB, Germossa GN, Adinew YM. Blood/Body Fluid Exposure and Needle Stick/Sharp Injury among nurses Working in Public Hospitals; Southwest Ethiopia. Frontiers in Public Health. 2017;5.
13. Ohayon MM, Stolc V, Freund FT, Milesi C, Sullivan SS. The potential for impact of man-made super low and extremely low frequency electromagnetic fields on sleep. Sleep medicine reviews. 2019;47:28-38.
14. Yiha O, Kumie A. Assessment of occupational injuries in Tendaho Agricultural Development S.C, Afar Regional State. Ethiopian Journal of Health Development. 2010;24(3):167-74.
15. Negatu B, Vermeulen R, Mekonnen Y, Kromhout H. Neurobehavioural symptoms and acute pesticide poisoning: A cross-sectional study among male pesticide applicators selected from three commercial farming systems in Ethiopia. Occupational and Environmental Medicine. 2018;75(4):283-9.
16. Kumie A, Amera T, Berhane K, Samet J, Hundal N, Michael FG, et al. Occupational Health and Safety in Ethiopia: A review of Situational Analysis and Needs Assessment. Ethiopian Journal of Health Development. 2016;30(1):17-27.
17. Lette A, Ambelu A, Getahun T, Mekonen S. A survey of work-related injuries among building construction workers in southwestern Ethiopia. International Journal of Industrial Ergonomics. 2018;68:57-64.
18. Nigatu AW, Bråtveit M, Moen BE. Self-reported acute pesticide intoxications in Ethiopia. BMC public health. 2016;16(1).
19. Gizaw Z, Yifred B, Tadesse T. Chronic respiratory symptoms and associated factors among cement factory workers in Dejen town, Amhara regional state, Ethiopia, 2015. Multidisciplinary Respiratory Medicine. 2016;11(1).
20. Tadesse S, Israel D. Occupational injuries among building construction workers in Addis Ababa, Ethiopia. Journal of Occupational Medicine and Toxicology. 2016;11.
21. Chercos DH, Berhanu D. Work related injury among Saudi Star Agro Industry workers in Gambella region, Ethiopia; a cross-sectional study. Journal of Occupational Medicine and Toxicology. 2017;12.
22. Desalegn B, Beyene H, Yamada R. Patients-to-healthcare workers HIV transmission risk from sharp injuries, Southern Ethiopia. SAHARA J : journal of Social Aspects of HIV/AIDS Research Alliance. 2012;9(1):1-5.
23. Eskezia D, Aderaw Z, Ahmed KY, Tadese F. Prevalence and associated factors of occupational injuries among municipal solid waste collectors in four zones of Amhara region, Northwest Ethiopia. BMC public health. 2016;16.
24. Sajedifar J, Nassiri P, Monazzam MR, Shamsipour M, Ramezani R. The effect of battery charge levels of Mobile phone on the amount of Electromagnetic waves emission. Journal of environmental health science & engineering. 2019;17(1):151-9.
25. Kassahun J, Yimer E, Geyid A, Abebe P, Newayeselassie B, Zewdie B, et al. Sero-prevalence of brucellosis in occupationally exposed people in Addis Ababa, Ethiopia. Ethiopian medical journal. 2006;44(3):245-52.
26. Demeke D, Haile DW. Assessment of Respiratory Symptoms and Pulmonary Function Status among Workers of Flour Mills in Addis Ababa, Ethiopia: Comparative Cross-Sectional Study. Pulmonary medicine. 2018;2018.
27. Jalilian H, Eeftens M, Ziaei M, Roosli M. Public exposure to radiofrequency electromagnetic fields in everyday microenvironments: An updated systematic review for Europe. Environ Res. 2019;176:108517.
28. Hosseinabadi MB, Khanjani N, Samaei SE, Nazarkhani F. Effect of long-term occupational exposure to extremely low-frequency electromagnetic fields on proinflammatory cytokine and hematological parameters. International journal of radiation biology. 2019:1-8.
29. Reda AA, Fisseha S, Mengistie B, Vandeweerd JM. Standard precautions: Occupational exposure and behavior of health care workers in Ethiopia. PLoS ONE. 2010;5(12).
30. Smith DJ. Protective clothing and thermal stress. Annals of Occupational Hygiene. 1980;23(2):217-24.
31. Harrison RM, Delgado-Saborit JM, Baker SJ, Aquilina N, Meddings C, Harrad S, et al. Measurement and modeling of exposure to selected air toxics for health effects studies and verification by biomarkers. Research report (Health Effects Institute). 2009(143):3-96; discussion 7-100.
32. Paik SY, Zalk DM. A Simple Proposition for Improving Industrial Hygiene Air Sampling Methods. Safety and health at work. 2019;10(3):389-92.
33. Vinnikov D, Semizhon S, Rybina T, Zaitsev V, Pleshkova A, Rybina A. Occupational exposure to metals and other elements in the tractor production. PLoS One. 2018;13(12):e0208932.
34. Zeleke ZK, Moen BE, Bråtveit M. Cement dust exposure and acute lung function: A cross shift study. BMC pulmonary medicine. 2010;10.
35. Zeleke ZK, Moen BE, Bråtveit M. Lung function reduction and chronic respiratory symptoms among workers in the cement industry: A follow up study. BMC pulmonary medicine. 2011;11.
36. Abaya SW, Bråtveit M, Deressa W, Kumie A, Moen BE. Reduced lung function among workers in primary coffee processing factories in Ethiopia: A cross sectional study. International Journal of Environmental Research and Public Health. 2018;15(11).
37. Woldesonbet ZD. Epidemiology of needle stick-sharp injuries (NSSIs) and potential high risk exposures among health professionals in Ethiopia: Neglected public health concern. International Journal of Infectious Diseases. 2016;45:249-50.
38. Adela Y, Ambelu A, Tessema DA. Occupational lead exposure among automotive garage workers - a case study for Jimma town, Ethiopia. Journal of Occupational Medicine and Toxicology. 2012;7.
39. Bekele T, Gebremariam A, Kaso M, Ahmed K. Attitude, reporting behavour and management practice of occupational needle stick and sharps injuries among hospital healthcare workers in Bale zone, Southeast Ethiopia: A cross-sectional study. Journal of Occupational Medicine and Toxicology. 2015;10(1).
40. Tadesse M, Tadesse T. Epidemiology of needlestick injuries among health-care workers in Awassa City, Southern Ethiopia. Tropical doctor. 2010;40(2):111-3.
41. Anttonen H. Occupational needs and evaluation methods for cold protective clothing. Arctic medical research. 1993;52 Suppl 9:1-76.
IssueVol 11 No 1 (2019) QRcode
SectionReview Article(s)
Occupational exposures chronic diseases hazards workplace

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How to Cite
Abdi D, Yima K. Prevalence of Occupational Exposures in Ethiopia: Systematic Review. Int J Occup Hyg. 11(1):58-69.