PM10-bound microplastics and trace metals: A public health insight from the Korean subway and indoor environments.

Autor: Roy D; Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea., Kim J; Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea., Lee M; Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea., Kim S; Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea., Park J; Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Korea. Electronic address: parkj@yonsei.ac.kr.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2024 Sep 15; Vol. 477, pp. 135156. Date of Electronic Publication: 2024 Jul 10.
DOI: 10.1016/j.jhazmat.2024.135156
Abstrakt: Inhalable airborne microplastics (MPs) presented in indoor and outdoor environments, can deeply penetrate the lungs, potentially triggering inflammation and respiratory illnesses. The present study aims to evaluate human health risks from respirable particulate matter (PM)-bound trace metals and MPs in indoor (SW- subway and IRH- indoor residential houses) and outdoor (OD) environments. This research provides an initial approach to human respiratory tract (HRT) mass depositions of PM10-bound total MPs and nine specific MP types to predict potential human health threats from inhalation exposure. Results indicate that PM-bound trace metals and MPs were around 4 times higher in SW microenvironments compared to OD locations. In IRH, cancer risk (CR) levels were estimated 9 and 4 times higher for PM10 and PM2.5, respectively. Additionally, MP particle depositions per gram of lung cell weight were highest in IRH (23.77), followed by OD and SW. Whereas, lifetime alveoli depositions of MPs were estimated at 13.73 MP/g, which exceeds previously reported respiratory disease fatality cases by 10 to 5 times. Prolonged exposure duration at IRH emerged as a key factor contributing to increased CR and MP lung deposition levels. This research highlights severe lung risks from inhaling PM-bound MPs and metals, offering valuable health insights.
Competing Interests: Declaration of Competing Interest This manuscript has not been published or presented elsewhere in part or in entirety and is not under consideration by another journal. We have read and understood your journal’s policies, and we believe that neither the manuscript nor the study violates any of these. There are no conflicts of interest to declare. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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