Reconciling the actual and nominal exposure concentrations of microplastics in aqueous phase: Implications for risk assessment and deviation control

doi:10.1016/j.jhazmat.2022.130246

	Reconciling the actual and nominal exposure concentrations of microplastics in aqueous phase: Implications for risk assessment and deviation control
	Sun, Tao 1,2,3; Wu, Huifeng1,2,4,5
发表期刊	JOURNAL OF HAZARDOUS MATERIALS
ISSN	0304-3894
	2023-02-05
卷号	443 页码:6
关键词	Microplastics Aqueous solution Actual concentration Nominal concentration Deviation control
DOI	10.1016/j.jhazmat.2022.130246
通讯作者	Wu, Huifeng(hfwu@yic.ac.cn)
英文摘要	The deviation between actual and nominal concentrations of microplastics (MPs), as a long-standing issue, has been critically commented. However, there is still a lack of quantitative assessment and reconciling practice on the deviation. In this study, a total of 210 deviations were recompiled to thoroughly examine this issue. It was shown that up to 81 (39%) deviations exceeded the recommended +/- 20% variation specification, highlighting that the deviation of MPs should not be neglected. This study attempted to reconcile the deviation based on the most prominent driving factors. Specifically, the game theory-based SHapley Additive exPlanations (SHAP) al-gorithm identified that the particle size was the most important factor affecting the deviation. Subsequently, at each size magnitude, a significant linear correlation between the logarithmic actual and nominal concentrations was determined, which provided a sound basis for estimating the actual concentration from the nominal one. Furthermore, deviations of different size classes were simulated through 10, 000 points, suggesting that the +/- 20% deviation variation could be well maintained within a specific concentration range. Moreover, the potential interaction effects between factors were quantified by SHAP interaction values, with more detailed conversion bases proposed. Additionally, several control measures were recommended to reduce the deviation of MPs.
资助机构	National Natural Science Foundation of China ; Young Taishan Scholars Program of Shandong Province
收录类别	SCI
语种	英语
关键词[WOS]	MERCURY
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:000882412600001
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/32380
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Wu, Huifeng
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 3.Univ Chinese Acad Sci, R China, Beijing 100049, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Sun, Tao,Wu, Huifeng. Reconciling the actual and nominal exposure concentrations of microplastics in aqueous phase: Implications for risk assessment and deviation control[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,443:6.
APA	Sun, Tao,&Wu, Huifeng.(2023).Reconciling the actual and nominal exposure concentrations of microplastics in aqueous phase: Implications for risk assessment and deviation control.JOURNAL OF HAZARDOUS MATERIALS,443,6.
MLA	Sun, Tao,et al."Reconciling the actual and nominal exposure concentrations of microplastics in aqueous phase: Implications for risk assessment and deviation control".JOURNAL OF HAZARDOUS MATERIALS 443(2023):6.