首页|Underestimated activity-based microplastic intake under scenario-specific exposures

Underestimated activity-based microplastic intake under scenario-specific exposures

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Despite increasing alarms over the health impacts of microplastics(MPs)due to their detection in human organs and feces,precise exposure evaluations remain scarce.To comprehend their risks,there is a distinct need to prioritize quantitive estimates in MP exposome,particularly at the environmentally-realistic level.Here we used a method rooted in real-world MP measurements and activity patterns to determine the daily intake of MPs through inhalation and from ground dust/soil ingestion.We found that nearly 80％of this intake comes from residential sectors,with activity intensity and behavioral types significantly affecting the human MP burden.The data showed a peak in MP exposure for those aged 18-64.When compared to dietary MP intake sources like seafood,salt,and water,we identified a previ-ously underestimated exposure from inhalation and dust/soil ingestion,emphasizing the need for more realistic evaluations that incorporate activity factors.This discovery raises questions about the accuracy of past studies and underscores MP's potential health risks.Moreover,our time-based simulations revealed increased MP intake during the COVID-19 lockdown due to more surface dust ingestion,shedding light on how global health crises may inadvertently elevate MP exposure risks.

MicroplasticsActivity factorsInhalation and ingestionSimulationExposure estimate

Jing-Yan Zhang、Jie Ding、Lu-Ming Liu、Rui Wu、Lan Ding、Jun-Qiu Jiang、Ji-Wei Pang、Yan Li、Nan-Qi Ren、Shan-Shan Yang

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State Key Laboratory of Urban Water Resource and Environment,School of Environment,Harbin Institute of Technology,Harbin,150090,China

Harbin Institute of Technology National Engineering Research Center of Water Resources Co.,Ltd,Harbin,150090,China

College of Chemistry,Jilin University,2699 Qianjin Street,Changchun,130012,China

China Energy Conservation and Environmental Protection Group,Beijing,100089,China

School of Environmental Science and Engineering,Yancheng Institute of Technology,Yancheng,224051,China

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国家重点研发计划国家自然科学基金Shanghai Sailing Program中国博士后科学基金State Key Laboratory of Estuarine and Coastal Research of ChinaSino-Norwegian cooperation project on capacity building for reducing plastic and microplastic pollution(SINOPLAST)ECNU"Future Scientist"incubation program111 Project from Ministry of Education,China

2022YFC31059004220616722YF14108002021M7012132022RCDW02WLKXJ202004BP0820020

2024

10.1016/j.ese.2023.100316

环境科学与生态技术(英文)

环境科学与生态技术(英文)

ISSN：
年,卷(期)：2024.18(1)
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