伊斯坦布尔地铁站室内空气中的微塑料

IF 2.9 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Melike Servin Coşgun, Sedat Gündoğdu, Ülkü Alver Şahin, Burcu Uzun Ayvaz, Burcu Onat, Coşkun Ayvaz
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引用次数: 0

摘要

微塑料(MPs)已成为重要的空气污染物,但它们在封闭的公共交通环境中的存在仍未得到充分研究。本研究调查了伊斯坦布尔地铁站室内空气中MPs的发生、特征和潜在的人体暴露。在一个交通繁忙的地铁站,采用被动沉积法和主动空气采样法分别收集了7天的悬浮悬浮颗粒物。沉积的MP浓度范围为278,571至865,714 MPs/m²/天,而空气中的MP浓度范围为0.4至2.93 MPs/m³。吸入暴露估计表明,在站台上等待的15分钟内,不同年龄组的乘客可能吸入0.24至0.30 MPs。显微和拉曼光谱分析显示,超过70%的MPs是纤维,主要由聚乙烯(PE, 25%)和聚对苯二甲酸乙二醇酯(PET, 21%)组成。大多数悬浮MPs的尺寸为100 μm,而沉积MPs的尺寸主要为200-400 μm。这些发现强调了MPs在封闭运输系统中的存在及其对室内空气污染的潜在贡献。鉴于公众对地铁交通的广泛依赖,有必要进行进一步的研究,以评估与慢性吸入多聚物相关的健康风险,并制定减少室内多聚物暴露的缓解战略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microplastics in the indoor air of subway station in Istanbul

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.

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来源期刊
Air Quality Atmosphere and Health
Air Quality Atmosphere and Health ENVIRONMENTAL SCIENCES-
CiteScore
8.80
自引率
2.00%
发文量
146
审稿时长
>12 weeks
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.
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