Distribution of microplastics in benthic sediments of Qinghai Lake on the Tibetan Plateau, China
文献类型：期刊论文
| 作者 | Jiang, Ning; Luo, Wei ; Zhao, Pin; Ga, Bila; Jia, Junmei; Giesy, John P.
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2022-08-20 |
| 卷号 | 835期号:0页码:155434 |
| ISSN号 | 0048-9697 |
| 关键词 | PELAGIC PLASTIC POLLUTION FRESH-WATER SURFACE WATERS PARTICLES IMPACTS REMOTE ENVIRONMENT SYSTEMS DEBRIS RECORD |
| 英文摘要 | Although several studies of microplastics (MPs) with size <5 mm in lake sediments focused on lakeshore areas, there have been no studies of distributions of MPs from lakeshores to the center of a lake. To test our hypothesis that MPs decrease from lakeshore to the center, a study was conducted on the largest brackish lake on the remote and high-altitude Tibetan Plateau, China. Abundances and characteristics of MPs in 14 samples of surface sediment collected from a river bay, a lake bay, and a lake central area were investigated. Distributions were influenced by river inflow, tourism, and minimal activity of humans, respectively around Qinghai Lake. The mean abundance of MPs in sediments of Qinghai Lake was 393 +/- 457 items/kg, dry mass (dm). Based on the range of MP abundances in surface sediments of lakes worldwide, Qinghai Lake was classified as being moderately polluted with MPs. The dominant color, shape, size, and polymer type of MPs in sediments were transparent, fiber, 0.05-1 mm, and polypropylene, respectively. The river bay had a mean abundance of MPs two-fold greater than either the bay or central area of the lake. This indicates that the river catchment caused more pollution with MPs, while the central area of the lake was not a sink for MPs. Spatial trends of MPs in sediments from the shore to the center of the lake differed among areas, and were significantly related to wind, lake current, sedimentation rate, water- and sediment-properties, water depth, and proximity to land sources of MPs. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47433]  |
| 专题 | 生态环境研究中心_固体废弃物处理与资源化实验室 |
| 通讯作者 | Luo, Wei |
| 作者单位 | 1.Chinese Acad Sci, Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol Res, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Solid Waste Treatment & Recycling, Beijing 100085, Peoples R China 3.Univ Saskatchewan, Toxicol Ctr, Toxicol Program Fac, Saskatoon, SK S7N 5B3, Canada 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Ning,Luo, Wei,Zhao, Pin,et al. Distribution of microplastics in benthic sediments of Qinghai Lake on the Tibetan Plateau, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,835(0):155434. |
| APA | Jiang, Ning,Luo, Wei,Zhao, Pin,Ga, Bila,Jia, Junmei,&Giesy, John P..(2022).Distribution of microplastics in benthic sediments of Qinghai Lake on the Tibetan Plateau, China.SCIENCE OF THE TOTAL ENVIRONMENT,835(0),155434. |
| MLA | Jiang, Ning,et al."Distribution of microplastics in benthic sediments of Qinghai Lake on the Tibetan Plateau, China".SCIENCE OF THE TOTAL ENVIRONMENT 835.0(2022):155434. |
入库方式： OAI收割
来源：生态环境研究中心
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