Evidence map›Paper›PMID 34800535›Full record

ArticleEnvironmental research2022

Empirical evidence shows that air quality changes during COVID-19 pandemic lockdown in Jakarta, Indonesia are due to seasonal variation, not restricted movements.

Alana Jakob, Saberina Hasibuan, Dian Fiantis

Abstract readLetter
In one paragraph

Article in Environmental research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Associations Between Ambient PMAnnals of global health · 2025
    Article
  3. Article
  4. The Long-Term Impact of COVID-19 Lockdowns in Istanbul.International journal of environmental research and public health · 2022
    Article
  5. Article
  6. 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

3 authors.

Alana JakobBioEnvirometrics Research, Suite 110, Jl. Pangeran Jayakarta No. 70, Jakarta Pusat, Daerah Khusus Ibukota Jakarta, 11110, Indonesia. Electronic address: alana.jakob@protonmail.com.
Saberina HasibuanEnvironmental Quality Laboratory Department of Aquaculture Faculty of Fisheries and Marine Sciences, University of Riau, Pekanbaru, Indonesia.
Dian FiantisDepartment of Soil Science, Faculty of Agriculture, Andalas University, Kampus Limau Manis, Padang, 25163, Indonesia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Implementing a lockdown or activity restriction to reduce the spread of COVID-19 cases is assumed to improve air quality in highly populated cities. The effect of lockdown on air quality is often quantified by comparing pre- and during-lockdown air quality parameters without considering confounding meteorological factors. We demonstrated that rainfall can explain changes in PM10 and PM2.5 parameters in the city of Jakarta during lockdown. This article shows that comparing air quality pre- and during lockdown is misleading. Variables affecting air quality such as meteorological variables should be taken into account. The air quality in Jakarta as measured by PM10 and PM2.5 did not change significantly during the lockdown period after removing the seasonal effect.

Indexed as

Air PollutantsAir PollutionCOVID-19CitiesCommunicable Disease ControlEnvironmental MonitoringHumansIndonesiaPandemicsParticulate MatterSARS-CoV-2SeasonsAir PollutantsParticulate MatterAir qualityCoronavirusCOVID-19Environmental healthPandemicPM2.5

Identifiers

PMID34800535
PMCPMC8595973

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.