Evidence map›Paper›PMID 36668812›Full record

ArticleToxics2023

Pollution and Distribution of Microplastics in Grassland Soils of Qinghai-Tibet Plateau, China.

Sumei Li, Ziyi Li, Jun Xue, Sha Chen, Hanbing Li, Jian Ji, Yixuan Liang, Jiaying Fei, Weiyi Jiang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Toxics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Sumei LiDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Ziyi LiDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Jun XueSolid Waste and Chemicals Management Center, Ministry of Ecology and Environment, Beijing 100029, China.
Sha ChenDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Hanbing LiDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Jian JiDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Yixuan LiangDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Jiaying FeiDepartment of Environment, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Weiyi JiangGraduate School of International Study, Yonsei University, Seoul 03722, Republic of Korea.

Funding

Fund of Ministry of Science and Technology China for Foreign Distinguished Experts No. G2021001003LNational Natural Science Foundation of China No. 52200223National Natural Science Fund for Innovative Research Group No. 51621003The Second Tibetan Plateau Scientific Expedition and Research Program No. 2019QZKK1001
6 · The paper itself

Abstract

Microplastics (MPs) are plastic fragments with particle sizes smaller than 5 mm that have potentially harmful effects on ecosystems and human health. The soil environment is not only the source but also the sink of MPs. Thus, it is necessary to fully understand the pollution and distribution of MPs in soils. In this study, Qinghai Province, northeast of the Qinghai-Tibet Plateau, was selected as the research area, and 22 soil samples were collected and analyzed to study the levels and distribution characteristics of MPs in grassland soils. MPs were obtained from the soils by using density separation, and a laser confocal micro Raman spectrometer was used for MP identification. The results showed that MPs were detected in all of the soil samples. The total abundances of MPs ranged from 1125 to 1329 items/kg, with a mean abundance of 1202 items/kg. Various types, shapes, sizes, and colors of MPs were observed. Polyethylene terephthalate (PET) was the dominant polymer in all the grassland soil samples. The size range of 10-50 μm accounted for 50% of all identified MPs. Pellets were the dominant MP shape, and colored MPs accounted for 64% of all MPs. The results revealed the presence of large quantities of MPs in the grassland soils of remote areas as well. This study can act as a reference for further studies of MPs in terrestrial systems. At the end of the paper, the prospects and suggestions for pollution control by soil MPs are given.

Indexed as

distributiongrassland soilmicroplasticspollutionQinghai–Tibet Plateau

Identifiers

PMID36668812
PMCPMC9860952

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.