Microplastic pollutants in sediments from a water supply reservoir: Spatial heterogeneity in abundance, characteristics and pollution evaluation
文献类型： 外文期刊
作者： Liu, Yunzhao 1 ; Liang, Le 1 ; Wu, Jiajun 1 ; Zhao, Xianfu 4 ; Li, Jing 6 ; Fang, Ting 6 ; Liang, Yangyang 6 ; Jiang, Zhongguan 1 ;
作者机构： 1.Anhui Univ, Sch Resources & Environm Engn, Hefei 230601, Peoples R China
2.Anhui Prov Key Lab Wetland Ecosyst Protect & Resto, Hefei 230601, Peoples R China
3.Anhui Shengjin Lake Wetland Ecol Natl Long Term Sc, Dongzhi 247230, Peoples R China
4.Minist Water Resources, Inst Hydroecol, Key Lab Ecol Impacts Hydraul Projects & Restorat A, Wuhan 430072, Peoples R China
5.Chinese Acad Sci, Wuhan 430072, Peoples R China
6.Fisheries Res Inst, Anhui Acad Agr Sci, Key Lab Freshwater Aquaculture & Enhancement Anhui, Hefei 230001, Peoples R China
关键词： Microplastics; Sediments; Distribution; Pollution evaluation; Reservoirs
期刊名称：LIMNOLOGICA （ 影响因子：2.0； 五年影响因子：2.2 ）
ISSN： 0075-9511
年卷期： 2024 年 107 卷
页码：
收录情况： SCI
摘要： When assessing microplastics (MPs) in freshwater ecosystems, previous studies have primarily focused on natural rivers and lakes, with limited attention to urban water source areas. Sediments, recording the steady process of MPs accumulation during a long period of time, can act as an important sink for MPs. In this study, we investigated the distribution, characteristics and pollution evaluation of MP contaminants in sediments of a water supply reservoir of Hefei City (the Dafangying Reservoir). Meanwhile, the differences of MP concentrations in sediments in rural and urban areas were also compared. Our results detected five shapes, seven colors and six polymer types of MPs in sediments of the Dafangying Reservoir. Polystyrene, polyethylene and polypropylene were the most abundance types of MPs identified. The average MPs abundance of sediments in rural areas was 83.20 +/- 32.99 n/100 g dry weight (d.w.), and 182.67 +/- 72.21 n/100 g (d.w.) in urban areas. The total MP concentrations were significantly higher in sediments of urban sites than that in rural sites, which can be ascribed to more complex and diverse MP sources triggered by intensive anthropogenic activity in cities. Specifically, we also demonstrated significantly higher microbead abundance in urban sites, which may result from the widespread use of microbead in personal care products. Given the complexity and diversity of MPs in urban areas, we exhibited a relatively higher abundance of MPs in the Dafangying Reservoir than that in other rural larger reservoirs. According to the index of geoaccumulation, the sedimentary MPs were assessed as moderately polluted. Our study enriches valuable data on the distribution of MPs contaminants in water supply reservoir, and provides theoretical references for MPs control and management in reservoir ecosystems.
- 相关文献
作者其他论文 更多>>
-
Spatial distribution of the planktonic and sediment bacterial communities in algae- and macrophyte-dominated zones of the Chengdong Lake
作者：Liang, Yangyang;Gao, Na;Fang, Ting;Lu, Wenxuan
关键词：Macrophyte- and algae-dominated lake zones; bacterial community composition; bacterial diversity; Chengdong Lake
-
Variations and Interseasonal Changes in the Gut Microbial Communities of Seven Wild Fish Species in a Natural Lake with Limited Water Exchange during the Closed Fishing Season
作者：Liang, Yangyang;Gao, Na;Cui, Kai;Lu, Wenxuan;Wang, Zijia;Qi, Xiaoxue;Zeng, Juntao;Bai, Shijie;Wang, Zijia;Zeng, Juntao
关键词：Chaohu Lake; wild fish; gut; microbial communities; seasonal variation; co-occurrence network
-
Mechanisms and adsorption capacities of ball milled biomass fly ash/ biochar composites for the adsorption of methylene blue dye from aqueous solution
作者：Li, Huaiyan;Kong, Jie;Zhang, Haiting;Gao, Jiale;Fang, Yan;Shi, Jiaqi;Shi, Yanhong;Zhang, Rong;Zhang, Yunhua;Li, Hui;Ge, Tao;Fang, Ting;Zhang, Ningyuan;Dong, Xinju
关键词：Ball -milled biochars; Adsorption capacity; Methylene blue; Adsorption mechanism; Biochar composite
-
Genetic Diversity and Phylogeography of Taenioides cirratus in Five Geographical Populations Based on Mitochondrial COI and Cytb Gene Sequences
作者：Zhang, Guoqing;Chen, Cheng;Lu, Wenxuan;Li, Jing;Fang, Ting;Yang, Kun;Zhao, Xiuxia;Gao, Na;Liang, Yangyang
关键词：
-
Pollution characteristics and probabilistic human health risks of thallium and other heavy metals in soils from a typical copper mining city in the Yangtze river Delta, eastern China
作者：Sun, Kefei;Kong, Jie;Gao, Jiale;Fang, Yan;Shi, Jiaqi;Jiang, Zixuan;Ouyang, Kongyong;Shi, Yanhong;Zhang, Yunhua;Li, Hui;Ge, Tao;Fang, Ting;Zhang, Ningyuan;Dong, Xinju
关键词：Thallium; heavy metals; health risk assessment; Monte-Carlo simulation
-
Trace elements in red swamp crayfish (Procambarus clarkii) in China: Spatiotemporal variation and human health implications
作者：Li, Hui;Li, Huaiyan;Zhang, Haiting;Gao, Jiale;Fang, Yan;Ye, Wenling;Shi, Yanhong;Zhang, Rong;Zhang, Yunhua;Cao, Jing;Ge, Tao;Fang, Ting;Dong, Xinju;Guo, Xiaoying
关键词：Trace elements; Crayfish; Health risk assessment
-
Seasonal Succession of Bacterial Communities in the Land-Based Container with Recycling Water Aquaculture System
作者：Gao, Na;Fang, Ting;Liang, Yangyang;Cui, Kai;Lu, Wenxuan;Wang, Yize;Chen, Jinliang
关键词：
