Evidence map›Paper›PMID 33349736›Full record

ArticleGeophysical research letters2020

Variation in Concentration and Sources of Black Carbon in a Megacity of China During the COVID-19 Pandemic.

Liang Xu, Jian Zhang, Xin Sun, Shengchen Xu, Meng Shan, Qi Yuan, Lei Liu, Zhenhong Du, Dantong Liu, Da Xu and 5 more

Abstract read
In one paragraph

Article in Geophysical research letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

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

  1. Pooled it
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  9. Article
  10. Structure and dynamics of nanoconfined water and aqueous solutions.The European physical journal. E, Soft matter · 2021
    Review
  11. Article
  12. Review
  13. Impact of the first induced COVID-19 lockdown on air quality in Israel.Atmospheric environment (Oxford, England : 1994) · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Cause analysis of PMScientific reports · 2021
    Article
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  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

15 authors.

Liang XuKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences Zhejiang University Hangzhou 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 China.
Xin SunZhejiang Ecological and Environmental Monitoring Center Hangzhou China.
Shengchen XuZhejiang Ecological and Environmental Monitoring Center Hangzhou China.
Meng ShanZhejiang Linan Atmospheric Background National Observation and Research Station Hangzhou China.
Qi YuanKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences Zhejiang University Hangzhou 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 China.ORCID https://orcid.org/0000-0002-7171-1454
Zhenhong DuKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences Zhejiang University Hangzhou China.ORCID https://orcid.org/0000-0001-9449-0415
Dantong LiuKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences Zhejiang University Hangzhou China.ORCID https://orcid.org/0000-0003-3768-1770
Da XuZhejiang Ecological and Environmental Monitoring Center Hangzhou China.
Congbo SongSchool of Geography, Earth and Environmental Sciences University of Birmingham Birmingham UK.ORCID https://orcid.org/0000-0001-7948-4834
Bowen LiuDepartment of Economics University of Birmingham Birmingham UK.
Gongda LuSchool of Geography, Earth and Environmental Sciences University of Birmingham Birmingham UK.
Zongbo ShiSchool of Geography, Earth and Environmental Sciences University of Birmingham Birmingham UK.ORCID https://orcid.org/0000-0002-7157-543X
Weijun LiKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, Department of Atmospheric Sciences, School of Earth Sciences Zhejiang University Hangzhou China.ORCID https://orcid.org/0000-0003-4887-4260

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Black carbon (BC) not only warms the atmosphere but also affects human health. The nationwide lockdown due to the Coronavirus Disease 2019 (COVID-19) pandemic led to a major reduction in human activity during the past 30 years. Here, the concentration of BC in the urban, urban-industry, suburb, and rural areas of a megacity Hangzhou were monitored using a multiwavelength Aethalometer to estimate the impact of the COVID-19 lockdown on BC emissions. The citywide BC decreased by 44% from 2.30 to 1.29 μg/m

Indexed as

black carbonCOVID‐19 lockdownsource

Identifiers

PMID33349736
PMCPMC7744912

What OpenQuestion holds

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Registered trials

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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.