| Title: | First determination on two kinds of microplastic-air partition coefficients of seven per- and polyfluoroalkyl substances under environmentally relative conditions: Experiment measurement and model prediction |
| Author(s): | Deng Y; Peng L; Li Z; Xu W; Ren G; Wang F; |
| Address: | "Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China; Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China. Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China; State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR China. South China Institute of Environmental Sciences, MEE, Guangzhou 510655, China. Shenzhen Environmental Monitoring Center, Shenzhen 518049, Guangdong, China. Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China. Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, China. Electronic address: feiwang1984@gmail.com" |
| DOI: | 10.1016/j.jhazmat.2023.132042 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "Microplastics (MPs) in the environment are the sink and vector of organic contaminants, including per- and polyfluoroalkyl substances (PFASs). Although PFASs are low- and non-volatile compounds, they have the potential to partition and diffuse from MP into the gas phase in the environmental functions. Herein, the MP-air partition coefficient (K(PA)) of seven PFASs was measured using a solid-fugacity meter. The PFAS K(PA) values in two MPs (high-density polyethylene (HDPE) and thermoplastic polyurethane (TPU)) were determined under different times, temperatures, and relative humidities (RH), and a model was developed to predict the PFAS K(PA) values based on the measured data. The results showed that the K(PA) of PFASs increased with the prolonged partition time until 90 mins, and higher temperature and RH facilitated the distribution of PFASs in MPs into the air phase, leading to smaller K(PA) values. Moreover, the derived equation for predicting PFAS log K(PA) values was robust with 0.79 of an adjusted square of correlation coefficient (R(2)(adjusted) = 0.79) and 0.35 of root mean squared error (RMSE = 0.35). These findings provided the first knowledge for understanding the partition behavior and fate of PFASs in the MP-air microenvironment" |
| Keywords: | Derived model High-density polyethylene (HDPE) MP-air partition coefficient (K(PA)) Per- and polyfluoroalkyl substances (PFASs) Thermoplastic polyurethane (TPU); |
| Notes: | "PubMed-not-MEDLINEDeng, Yun Peng, Lin Li, Zhendong Xu, Wang Ren, Gang Wang, Fei eng Netherlands 2023/07/23 J Hazard Mater. 2023 Oct 5; 459:132042. doi: 10.1016/j.jhazmat.2023.132042. Epub 2023 Jul 11" |
