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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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''.