Spatial and temporal distribution, fate, and potential health risks of microplastics in urban indoor air

IF 7.2 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Gondwana Research Pub Date : 2025-02-06 DOI:10.1016/j.gr.2025.01.015

Liyuan Peng , Na Zheng , Qirui An , Xiaoqian Li , Siyu Sun , Yunyang Li , Jingze Yu , Fan Shao , Yingxi Qiu , Shuyue Zhang

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引用次数: 0

Abstract

The growing awareness of microplastics (MPs) in indoor residential environments stems from their pervasive presence and potential health risks. MPs were collected from living rooms and bedrooms, and their accumulation in the lungs of residents in three urban cities during summer and winter was assessed. The abundance of MPs at ≤ 2.5 μm and ≤ 10 μm was determined (Changchun: 713 ± 477 and 4239 ± 2420, Xingtai: 1003 ± 726 and 3781 ± 2070, Guangzhou: 492 ± 479 and 2446 ± 903, item/m³/day). Nearly 50 % of the total abundance of MPs discovered in this study were ≤ 10 μm in size. Considerable differences in MPs abundance were observed between summer and winter (p < 0.01). The quantity of MPs in residential settings correlated with lifestyle choices and ventilation time (p < 0.05). Fragments represented the primary shape of MPs (45 % – 68 %), with polyamide (PA; 5 % – 35 %) and polycarbonate (PC; 5 % – 33 %) being the predominant polymers. Indoor uptake of MPs in lungs varied by age group. Adults had the highest intake, followed by teenagers and older individuals, while children had the lowest intake. Children and adults were estimated to intake 530 – 2060 and 1046 – 4068 items/day of MPs, respectively. Additionally, living rooms and bedrooms exhibited medium to extreme hazards according to the pollutant loading index (PLI) and polymer hazard index (PHI) assessments. This study deepens our understanding of MPs pollution in urban indoor air, raises awareness of the health risks to lungs associated with MPs exposure, and provides data to support these findings.

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城市室内空气中微塑料的时空分布、命运及潜在健康风险

人们对室内居住环境中微塑料（MPs）的认识日益提高，这源于它们的普遍存在和潜在的健康风险。研究人员从三个城市的客厅和卧室收集了MPs，并评估了它们在夏季和冬季在居民肺部的积累情况。测定了≤2.5 μm和≤10 μm的MPs丰度（长春：713±477和4239±2420，邢台：1003±726和3781±2070，广州：492±479和2446±903，项/m3/天）。在本研究中发现的MPs总丰度中，近50%的MPs尺寸≤10 μm。在夏季和冬季之间观察到MPs丰度的显著差异(p <；0.01)。居住环境中MPs的数量与生活方式选择和通风时间相关(p <；0.05)。片段代表MPs的主要形状（45% - 68%），聚酰胺(PA；5% - 35%)和聚碳酸酯(PC；5% - 33%)为主要聚合物。肺内MPs的室内摄取因年龄组而异。成年人的摄入量最高，其次是青少年和老年人，而儿童的摄入量最低。据估计，儿童和成人每天分别摄入530 - 2060和1046 - 4068个MPs。此外，根据污染物负荷指数（PLI）和聚合物危害指数（PHI）评估，客厅和卧室表现为中等至极端危害。这项研究加深了我们对城市室内空气中多磺酸盐污染的理解，提高了人们对多磺酸盐暴露对肺部健康风险的认识，并提供了支持这些发现的数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Gondwana Research 地学-地球科学综合

CiteScore

12.90

自引率

6.60%

发文量

298

审稿时长

65 days

期刊介绍： Gondwana Research (GR) is an International Journal aimed to promote high quality research publications on all topics related to solid Earth, particularly with reference to the origin and evolution of continents, continental assemblies and their resources. GR is an "all earth science" journal with no restrictions on geological time, terrane or theme and covers a wide spectrum of topics in geosciences such as geology, geomorphology, palaeontology, structure, petrology, geochemistry, stable isotopes, geochronology, economic geology, exploration geology, engineering geology, geophysics, and environmental geology among other themes, and provides an appropriate forum to integrate studies from different disciplines and different terrains. In addition to regular articles and thematic issues, the journal invites high profile state-of-the-art reviews on thrust area topics for its column, ''GR FOCUS''. Focus articles include short biographies and photographs of the authors. Short articles (within ten printed pages) for rapid publication reporting important discoveries or innovative models of global interest will be considered under the category ''GR LETTERS''.