Lung Diseases Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
Abstract: (40 Views)
Background & objectives: Concerns regarding microplastics have been increasing due to their potential adverse effects on human health and environmental pollution. This study investigates the presence and characteristics of microplastics in the indoor air of Imam Khomeini Hospital, specifically in the laboratory, physiotherapy, endoscopy, and emergency departments, as well as in the hospital's outdoor air. Additionally, human exposure to microplastics via inhalation is assessed. Methods:Indoor and outdoor air samples were collected from Imam Khomeini Hospital in Ardabil City. Microplastic particles were identified and characterized using a polarizing microscope. Results: The highest concentration of microplastics in indoor air was recorded in the laboratory department (35.45 microplastics/m³), followed by physiotherapy (34.25 microplastics/m³), emergency department (32.05 microplastics/m³), and endoscopy (31.82 microplastics/m³). The estimated daily exposure to microplastics via inhalation was 190.57 and 12.37 microplastics per day indoorsandoutdoors respectively. Conclusion: Inhalation exposure to microplastics poses potential health risks, particularly within hospital environments. Implementing necessary measures-such as improved air filtration systems and mitigation strategies-can help reduce microplastic exposure, contributing to a safer and healthier hospital environment.
Type of Study: Research |
Subject: General Received: 2025/06/18 | Accepted: 2025/03/30 | Published: 2025/03/30
References
1. Kutralam-Muniasamy G, Shruti V, Pérez-Guevara F, Roy PD. Microplastic diagnostics in humans:"The 3Ps" Progress, problems, and prospects. Science of The Total Environment. 2023;856:159164. [DOI:10.1016/j.scitotenv.2022.159164] [PMID]
2. Niari MH, Jaafarzadeh N, Dobaradaran S, Niri MV, Dargahi A. Release of microplastics to the environment through wastewater treatment plants: Study on four types of wastewater treatment processes. Water, Air, & Soil Pollution. 2023;234(9):589. [DOI:10.1007/s11270-023-06594-0]
3. do Sul JAI, Costa MF. The present and future of microplastic pollution in the marine environment. Environmental pollution. 2014;185:352-64. [DOI:10.1016/j.envpol.2013.10.036] [PMID]
4. Mohammadi A, Malakootian M, Dobaradaran S, Hashemi M, Jaafarzadeh N, De-la-Torre GE. Occurrence and ecological risks of microplastics and phthalate esters in organic solid wastes: In a landfill located nearby the Persian Gulf. Chemosphere. 2023;332:138910. [DOI:10.1016/j.chemosphere.2023.138910] [PMID]
5. Huang L, Li QP, Li H, Lin L, Xu X, Yuan X, et al. Microplastic contamination in coral reef fishes and its potential risks in the remote Xisha areas of the South China Sea. Marine Pollution Bulletin. 2023;186:114399. [DOI:10.1016/j.marpolbul.2022.114399] [PMID]
6. Ye Y, Zhang A, Teng J, Yang X, Yuan X, Wang Q, et al. Pollution characteristics and ecological risk of microplastic in sediments of Liaodong Bay from the northern Bohai Sea in China. Marine Pollution Bulletin. 2023;187:114505. [DOI:10.1016/j.marpolbul.2022.114505] [PMID]
7. Zheng X, Sun R, Dai Z, He L, Li C. Distribution and risk assessment of microplastics in typical ecosystems in the South China Sea. Science of The Total Environment. 2023:163678. [DOI:10.1016/j.scitotenv.2023.163678] [PMID]
8. Liao Y-l, Tang Q-x, Yang J-y. Microplastic characteristics and microplastic-heavy metal synergistic contamination in agricultural soil under different cultivation modes in Chengdu, China. Journal of Hazardous Materials. 2023;459:132270. [DOI:10.1016/j.jhazmat.2023.132270] [PMID]
9. Kumar A, Mishra S, Pandey R, Yu ZG, Kumar M, Khoo KS, et al. Microplastics in terrestrial ecosystems: Un-ignorable impacts on soil characterises, nutrient storage and its cycling. TrAC Trends in Analytical Chemistry. 2023;158:116869. [DOI:10.1016/j.trac.2022.116869]
10. Huang S, Huang X, Bi R, Guo Q, Yu X, Zeng Q, et al. Detection and analysis of microplastics in human sputum. Environmental Science & Technology. 2022;56(4):2476-86. [DOI:10.1021/acs.est.1c03859] [PMID]
11. Field DT, Green JL, Bennett R, Jenner LC, Sadofsky LR, Chapman E, et al. Microplastics in the surgical environment. Environment International. 2022;170:107630. [DOI:10.1016/j.envint.2022.107630] [PMID]
12. Domenech J, Marcos R. Pathways of human exposure to microplastics, and estimation of the total burden. Current Opinion in Food Science. 2021;39:144-51. [DOI:10.1016/j.cofs.2021.01.004]
13. Geng Y, Zhang Z, Zhou W, Shao X, Li Z, Zhou Y. Individual Exposure to Microplastics through the Inhalation Route: Comparison of Microplastics in Inhaled Indoor Aerosol and Exhaled Breath Air. Environmental Science & Technology Letters. 2023. [DOI:10.1021/acs.estlett.3c00147]
14. Li L, Zhao X, Li Z, Song K. COVID-19: Performance study of microplastic inhalation risk posed by wearing masks. Journal of hazardous materials. 2021;411:124955. [DOI:10.1016/j.jhazmat.2020.124955] [PMID] []
15. Lu K, Lai KP, Stoeger T, Ji S, Lin Z, Lin X, et al. Detrimental effects of microplastic exposure on normal and asthmatic pulmonary physiology. Journal of hazardous materials. 2021;416:126069. [DOI:10.1016/j.jhazmat.2021.126069] [PMID]
16. Gasperi J, Wright SL, Dris R, Collard F, Mandin C, Guerrouache M, et al. Microplastics in air: are we breathing it in? Current Opinion in Environmental Science & Health. 2018;1:1-5. [DOI:10.1016/j.coesh.2017.10.002]
17. Lu W, Li X, Wang S, Tu C, Qiu L, Zhang H, et al. New Evidence of Microplastics in the Lower Respiratory Tract: Inhalation through Smoking. Environmental Science & Technology. 2023. [DOI:10.1021/acs.est.3c00716] [PMID]
18. Gouin T, Ellis-Hutchings R, Thornton Hampton LM, Lemieux CL, Wright SL. Screening and prioritization of nano-and microplastic particle toxicity studies for evaluating human health risks-development and application of a toxicity study assessment tool. Microplastics and Nanoplastics. 2022;2(1):2. [DOI:10.1186/s43591-021-00023-x] [PMID] []
19. Niari MH, Takdastan A, Babaei A, Dobaradaran S, Jorfi S, Ahmadi M. Fate and Ecological Risk of Phthalate Esters in Microplastics of Wastewater in the Wastewater Treatment Plant. Water, Air, & Soil Pollution. 2024;235(2):1-11. [DOI:10.1007/s11270-024-06915-x]
20. Shim WJ, Hong SH, Eo SE. Identification methods in microplastic analysis: a review. Analytical methods. 2017;9(9):1384-91. [DOI:10.1039/C6AY02558G]
21. Chen E-Y, Lin K-T, Jung C-C, Chang C-L, Chen C-Y. Characteristics and influencing factors of airborne microplastics in nail salons. Science of the Total Environment. 2022;806:151472. [DOI:10.1016/j.scitotenv.2021.151472] [PMID]
22. Dong C-D, Chen C-W, Chen Y-C, Chen H-H, Lee J-S, Lin C-H. Polystyrene microplastic particles: In vitro pulmonary toxicity assessment. Journal of hazardous materials. 2020;385:121575. [DOI:10.1016/j.jhazmat.2019.121575] [PMID]
23. Dris R, Gasperi J, Mirande C, Mandin C, Guerrouache M, Langlois V, et al. A first overview of textile fibers, including microplastics, in indoor and outdoor environments. Environmental pollution. 2017;221:453-8. [DOI:10.1016/j.envpol.2016.12.013] [PMID]
24. Zhang Y, Kang S, Allen S, Allen D, Gao T, Sillanpää M. Atmospheric microplastics: A review on current status and perspectives. Earth-Science Reviews. 2020;203:103118. [DOI:10.1016/j.earscirev.2020.103118]
25. Perera K, Ziajahromi S, Bengtson Nash S, Manage PM, Leusch FD. Airborne microplastics in indoor and outdoor environments of a developing country in south asia: abundance, distribution, morphology, and possible sources. Environmental Science & Technology. 2022;56(23):16676-85. [DOI:10.1021/acs.est.2c05885] [PMID]
Hazrati* M. Investigating Microplastics in the Indoor and Outdoor Air of Imam Khomeini Hospital in Ardabil City: Characteristics and Assessment of Human Exposure. j.health 2025; 16 (1) :7-15 URL: http://healthjournal.arums.ac.ir/article-1-2996-en.html