Seasonal influence on pollution index and risk of multiple compositions of microplastics in an urban river

作     者：Huang, Chi-Wei Li, Yi-Lin Lin, Chitsan Bui, Xuan-Thanh Vo, Thi-Dieu-Hien Ngo, Huu Hao 

作者机构：Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Ph.D. Program in Maritime Science and Technology College of Maritime National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan  268 Ly Thuong Kiet Street District 10 Ho Chi Minh City Viet Nam  Linh Trung ward Ho Chi Minh City700000 Viet Nam Faculty of Environmental and Food Engineering Nguyen Tat Thanh University Ho Chi Minh City Viet Nam School of Civil and Environmental Engineering University of Technology Sydney SydneyNWS2007 Australia 

出 版 物：《Science of the Total Environment》 (Sci. Total Environ.)

年 卷 期：2023年第859卷第Part1期

页      面：160021页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 081501[工学-水文学及水资源] 0837[工学-安全科学与工程] 0815[工学-水利工程] 0706[理学-大气科学] 

基　　金：The authors would like to thank the Ministry of Science and Technology (MOST)  Taiwan for the financial support of the project 110-2813-C-992-035-E 

主　　题：Risk assessment 

摘      要：Emerging contaminant microplastics (MPs) are getting worldwide attention for their ubiquitous occurrence and potential risk to the environment. However, the seasonal influence on freshwater MP pollution remains poorly understood. To better understand and evaluate the riverine MPs in different seasons, this study conducted the risk assessment of MPs in an urban river, Houjin River, during the different seasons. The present study found that the MPs (0.1–5 mm, mostly 0.1–2 mm) were more abundant in the dry season (183.33 ± 128.95 items/m3) compared with the wet season (102.08 ± 45.80 items/m3). Similarly, the mixture of different MPs polymers was more diverse in the dry season. The related pollution indices such as the contamination factor (CF) and pollution load index (PLI) showed that average CF and PLI were 5.15 and 2.10 in the dry season, which significantly decreased to 1.58 and 1.25, respectively, in the wet season (p © 2022 Elsevier B.V.