文献类型： 外文期刊
作者： Liang, Hao 1 ; Guo, Ruiyang 1 ; Liu, Di 1 ; Song, Ningning 1 ; Wang, Fangli 1 ; Li, Yan 2 ; Ge, Wei 3 ; Chai, Chao 1 ;
作者机构： 1.Qingdao Agr Univ, Qingdao Engn Res Ctr Rural Environm, Sch Resources & Environm, Qingdao 266109, Peoples R China
2.Shandong Acad Agr Sci, Inst Agr Resources & Environm, Jinan 250100, Peoples R China
3.Qingdao Agr Univ, Sch Life Sci, Shandong Prov Key Lab Appl Mycol, Qingdao 266109, Peoples R China
关键词： Microplastics; Nanoplastics; UV; Face mask; Aging
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）
ISSN： 0048-9697
年卷期： 2023 年 891 卷
页码：
收录情况： SCI
摘要： In this study, three types of disposable masks were exposed to ultraviolet (UV) irradiation to determine the effect of UV irradiation on the release of microplastics (MPs) and nanoplastic (NPs) from the masks. A kinetic model was used to investigate the mechanisms of M/NP release from the masks under UV irradiation. Results showed that UV irradiation exacerbated the damage to the structure of the mask over time. As the irradiation time increased, the middle layer of the mask was damaged first (15 d) and subsequently all layers of the mask were damaged (30 d). There was no signif-icant difference in the quantity of M/NPs released from the treatment groups at different irradiance during a 5-d irra-diation period. When the UV time reached 15 and 30 d, the highest quantity of M/NPs was released at 8.5 W/m2 followed by 4.9 W/m2, 15.4 W/m2, and 17.1 W/m2. Exponential equations fitted the release curve of M/NPs. The re-lease quantity of M/NPs increases exponentially with increasing UV irradiation time, and the longer the irradiation time, the faster the rate of increase. Estimated release of 1.78 x 1017-3.66 x 1019 particles/piece of MPs and 8.23 x 1019-2.18 x 1022 particles/piece of NPs into the water when the masks are exposed to the real environment for 1-3 years.
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