{"title":"Microplastics in the indoor air of subway station in Istanbul","authors":"Melike Servin Coşgun, Sedat Gündoğdu, Ülkü Alver Şahin, Burcu Uzun Ayvaz, Burcu Onat, Coşkun Ayvaz","doi":"10.1007/s11869-025-01764-x","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Microplastics (MPs) have emerged as significant airborne pollutants, yet their presence in enclosed public transport environments remains understudied. This research investigates the occurrence, characteristics, and potential human exposure to MPs in the indoor air of a subway station in Istanbul. Airborne MPs were collected using both passive deposition and active air sampling methods for deposited and airborne MPs, respectively over seven days at a high-traffic metro station. Deposited MP concentrations ranged from 278,571 to 865,714 MPs/m²/day, while airborne MP concentrations varied between 0.4 and 2.93 MPs/m³. Inhalation exposure estimates indicate that passengers in different age groups may inhale between 0.24 and 0.30 MPs during a 15-minute wait on the platform. Microscopic and Raman spectroscopy analyses revealed that over 70% of MPs were fibers, predominantly composed of polyethylene (PE, 25%) and polyethylene terephthalate (PET, 21%). The majority of airborne MPs measured < 100 μm, whereas deposited MPs were predominantly 200–400 μm in size. These findings underscore the presence of MPs in enclosed transport systems and their potential contribution to indoor air pollution. Given the widespread public reliance on subway transport, further studies are necessary to assess the health risks associated with chronic inhalation of MPs and to develop mitigation strategies for reducing indoor MP exposure.</p>\n </div>","PeriodicalId":49109,"journal":{"name":"Air Quality Atmosphere and Health","volume":"18 8","pages":"2213 - 2227"},"PeriodicalIF":2.9000,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Air Quality Atmosphere and Health","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s11869-025-01764-x","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Microplastics (MPs) have emerged as significant airborne pollutants, yet their presence in enclosed public transport environments remains understudied. This research investigates the occurrence, characteristics, and potential human exposure to MPs in the indoor air of a subway station in Istanbul. Airborne MPs were collected using both passive deposition and active air sampling methods for deposited and airborne MPs, respectively over seven days at a high-traffic metro station. Deposited MP concentrations ranged from 278,571 to 865,714 MPs/m²/day, while airborne MP concentrations varied between 0.4 and 2.93 MPs/m³. Inhalation exposure estimates indicate that passengers in different age groups may inhale between 0.24 and 0.30 MPs during a 15-minute wait on the platform. Microscopic and Raman spectroscopy analyses revealed that over 70% of MPs were fibers, predominantly composed of polyethylene (PE, 25%) and polyethylene terephthalate (PET, 21%). The majority of airborne MPs measured < 100 μm, whereas deposited MPs were predominantly 200–400 μm in size. These findings underscore the presence of MPs in enclosed transport systems and their potential contribution to indoor air pollution. Given the widespread public reliance on subway transport, further studies are necessary to assess the health risks associated with chronic inhalation of MPs and to develop mitigation strategies for reducing indoor MP exposure.
期刊介绍:
Air Quality, Atmosphere, and Health is a multidisciplinary journal which, by its very name, illustrates the broad range of work it publishes and which focuses on atmospheric consequences of human activities and their implications for human and ecological health.
It offers research papers, critical literature reviews and commentaries, as well as special issues devoted to topical subjects or themes.
International in scope, the journal presents papers that inform and stimulate a global readership, as the topic addressed are global in their import. Consequently, we do not encourage submission of papers involving local data that relate to local problems. Unless they demonstrate wide applicability, these are better submitted to national or regional journals.
Air Quality, Atmosphere & Health addresses such topics as acid precipitation; airborne particulate matter; air quality monitoring and management; exposure assessment; risk assessment; indoor air quality; atmospheric chemistry; atmospheric modeling and prediction; air pollution climatology; climate change and air quality; air pollution measurement; atmospheric impact assessment; forest-fire emissions; atmospheric science; greenhouse gases; health and ecological effects; clean air technology; regional and global change and satellite measurements.
This journal benefits a diverse audience of researchers, public health officials and policy makers addressing problems that call for solutions based in evidence from atmospheric and exposure assessment scientists, epidemiologists, and risk assessors. Publication in the journal affords the opportunity to reach beyond defined disciplinary niches to this broader readership.