Evidence map›Paper›PMID 34794454›Full record

ArticleEnvironmental health : a global access science source2021

Association between ambient air pollutants and meteorological factors with SARS-CoV-2 transmission and mortality in India: an exploratory study.

Sumit Aggarwal, Sivaraman Balaji, Tanvi Singh, Geetha R Menon, Sandip Mandal, Jayaprakasam Madhumathi, Nupur Mahajan, Simran Kohli, Jasmine Kaur, Harpreet Singh and 2 more

Open access · goldAbstract read
In one paragraph

Article in Environmental health : a global access science source, 2021. 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
0.9field-weighted citation impact, top 27% of its field
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, 8 citations in OpenAlex.

  1. Air pollution and respiratory infections: the past, present, and future.Toxicological sciences : an official journal of the Society of Toxicology · 2023
    Review
  2. The Atmospheric Environment Effects of the COVID-19 Pandemic: A Metrological Study.International journal of environmental research and public health · 2022
    Review
  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

12 authors at 2 institutions in 1 country.

Sumit Aggarwal *Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Sivaraman Balaji *Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Tanvi SinghDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Geetha R MenonIndian Council of Medical Research-National Institute of Medical Statistics, New Delhi, 110029, India.
Sandip MandalDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Jayaprakasam MadhumathiDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Nupur MahajanDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Simran KohliDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Jasmine KaurDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Harpreet SinghDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India.
Kiran RadeWorld Health Organization, New Delhi, 110002, India.
Samiran PandaDivision of Epidemiology and Communicable Diseases, Indian Council of Medical Research-Headquarters, New Delhi, 110029, India. pandasamiran@gmail.com.ORCID 0000-0002-5077-6275
Indian Council of Medical Research · INWorld Health Organization - India · IN

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundThe Coronavirus disease 2019 (COVID-19) pandemic poses a serious public health concern worldwide. Certain regions of the globe were severely affected in terms of prevalence and mortality than other. Although the cause for this pattern is not clearly understood, lessons learned from previous epidemics and emerging evidences suggest the major role of ecological factors like ambient air pollutants (AAP) and meteorological parameters in increased COVID-19 incidence. The present study aimed to understand the impact of these factors on SARS-CoV-2 transmission and their associated mortality in major cities of India.

methodsThis study used secondary AAP, meteorological and COVID-19 data from official websites for the period January-November 2020, which were divided into Pre-lockdown (January-March 2020), Phase I (April to June 2020) and Phase II (July to November 2020) in India. After comprehensive screening, five major cities that includes 48 CPCB monitoring stations collecting daily data of ambient temperature, particulate matter PM

resultsThe level of air pollutants in major cities were significantly reduced during Phase I compared to Pre-lock down and increased upon Phase II in all the cities. During the Phase II in Delhi, the strong significant positive correlation was observed between the AAP and SARS-CoV-2 transmission. However, in Bengaluru, Hyderabad, Kolkata and Mumbai AAP levels were moderate and no correlation was noticed. The relation between AT and SARS-CoV-2 transmission was inconclusive as both positive and negative correlation observed. In addition, Delhi and Kolkata showed a positive association between long-term exposure to the AAP and COVID-19 CFR.

conclusionOur findings support the hypothesis that the particulate matter upon exceeding the satisfactory level serves as an important cofactor in increasing the risk of SARS-CoV-2 transmission and related mortality. These findings would help public health experts to understand the SARS-CoV-2 transmission against ecological variables in India and provides supporting evidence to healthcare policymakers and government agencies for formulating strategies to combat the COVID-19.

Indexed as

Air PollutantsCOVID-19Meteorological ConceptsCitiesEnvironmental MonitoringHumansIndiaParticulate MatterAir PollutantsParticulate MatterAir pollutantsCOVID-19IndiaMeteorologicalMortalityParametersSARS-CoV-2 transmission

Identifiers

PMID34794454
PMCPMC8601781
OpenAlexW3186404659

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.