Evidence map›Paper›PMID 34230714›Full record

ArticleGeophysical research letters2021

The Role of Primary Emission and Transboundary Transport in the Air Quality Changes During and After the COVID-19 Lockdown in China.

Hao Fan, Yuan Wang, Chuanfeng Zhao, Yikun Yang, Xingchuan Yang, Yue Sun, Shuyi Jiang

Abstract read
In one paragraph

Article in Geophysical research letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

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  9. Determination of the human impact on the drop in NOEnvironmental pollution (Barking, Essex : 1987) · 2022
    Article
  10. Article
  11. Effect of COVID-19 lockdown on regional pollution in Ireland.Air quality, atmosphere, & health · 2022
    Article
  12. Article
  13. 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

7 authors.

Hao FanState Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science Beijing Normal University Beijing China.ORCID https://orcid.org/0000-0002-6947-9609
Yuan WangDivision of Geological and Planetary Sciences California Institute of Technology Pasadena CA USA.ORCID https://orcid.org/0000-0001-6657-8401
Chuanfeng ZhaoState Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science Beijing Normal University Beijing China.ORCID https://orcid.org/0000-0002-5196-3996
Yikun YangState Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science Beijing Normal University Beijing China.
Xingchuan YangState Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science Beijing Normal University Beijing China.
Yue SunState Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science Beijing Normal University Beijing China.
Shuyi JiangState Key Laboratory of Earth Surface Processes and Resource Ecology, and College of Global Change and Earth System Science Beijing Normal University Beijing China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In late January 2020, China's rapid and strict control measures to curb the COVID-19 spread led to a sharp halt in socio-economic activity and a significant reduction in emissions. Using the ground-based observational data, the authors synergistically quantify the nation-wide variations of major air pollutant as well as meteorology during and after the lockdown. Their concentrations (except O

Indexed as

air pollutantsChinaCOVID‐19emissionlockdown

Identifiers

PMID34230714
PMCPMC8249991

What OpenQuestion holds

Textmetadata
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.