Evidence map›Paper›PMID 32861951›Full record

ArticleThe Science of the total environment2021

Spatiotemporal variations and reduction of air pollutants during the COVID-19 pandemic in a megacity of Yangtze River Delta in China.

Qi Yuan, Bing Qi, Deyun Hu, Junjiao Wang, Jian Zhang, Huanqiang Yang, Shanshan Zhang, Lei Liu, Liang Xu, Weijun Li

Abstract read
In one paragraph

Article in The Science of the total environment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
–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

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Association of PMRespiratory research · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Urban air quality changes resulting from the lockdown period due to the COVID-19 pandemic.International journal of environmental science and technology : IJEST · 2023
    Article
  7. Artificial Neural Network Modeling on PMInternational journal of environmental research and public health · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Air Pollution Increased the Demand for Gym Sports under COVID-19: Evidence from Beijing, China.International journal of environmental research and public health · 2022
    Article
  12. Decade-low aerosol levels over the Bohai and Yellow Seas amid the COVID-19 lockdown.International journal of applied earth observation and geoinformation : ITC journal · 2022
    Article
  13. Article
  14. Does Technological Innovation Curb OInternational journal of environmental research and public health · 2022
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

10 authors.

Qi YuanKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
Bing QiHangzhou Meteorological Bureau, Hangzhou 310051, China. Electronic address: bill_129@sina.com.
Deyun HuHangzhou Meteorological Bureau, Hangzhou 310051, China.
Junjiao WangHangzhou Meteorological Bureau, Hangzhou 310051, China.
Jian ZhangKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
Huanqiang YangHangzhou Meteorological Bureau, Hangzhou 310051, China.
Shanshan ZhangHangzhou Meteorological Bureau, Hangzhou 310051, China.
Lei LiuKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
Liang XuKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
Weijun LiKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310027, China. Electronic address: liweijun@zju.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In recent decades, air pollution has become an important environmental problem in the megacities of eastern China. How to control air pollution in megacities is still a challenging issue because of the complex pollutant sources, atmospheric chemistry, and meteorology. There is substantial uncertainty in accurately identifying the contributions of transport and local emissions to the air quality in megacities. The COVID-19 outbreak has prompted a nationwide public lockdown period and provides a valuable opportunity for understanding the sources and factors of air pollutants. The three-month period of continuous field observations for aerosol particles and gaseous pollutants, which extended from January 2020 to March 2020, covered urban, urban-industry, and suburban areas in the typical megacity of Hangzhou in the Yangtze River Delta in eastern China. In general, the concentrations of PM

Indexed as

Air PollutantsAir PollutionCoronavirus InfectionsPandemicsPneumonia, ViralBetacoronavirusChinaCOVID-19Environmental MonitoringHumansParticulate MatterRiversSARS-CoV-2Air PollutantsParticulate MatterAir pollutionCOVID-19HangzhouPlanetary boundary layerTransport

Identifiers

PMID32861951
PMCPMC7440035

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.