SynthesisEnvironmental research2022
Ambient air pollution and COVID-19 risk: Evidence from 35 observational studies.
Synthesis in Environmental research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
31 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The association between daily-diagnosed COVID-19 morbidity and short-term exposure to PMEnvironmental research · 2022Pooled it
- Ambient air pollution and COVID-19 incidence during four 2020-2021 case surges.Environmental research · 2022Pooled it
- Association between short-term exposure to air pollution and COVID-19: a case-crossover cohort study.BMJ open respiratory research · 2026Article
- Correlation of COVID-19 Mortality with Socioeconomic Status, Air Quality, and Housing Density.Thoracic research and practice · 2026Article
- Consideration of Cardiovascular Morbidities in the Relationship between Ambient Air Pollution Exposure and Individual-Level Adverse COVID-19 Outcomes: A Systematic Review.Current epidemiology reports · 2025Article
- REACH-OUT: Race, Ethnicity, and Air Pollution in COVID-19 Hospitalization OUTcomes.Research report (Health Effects Institute) · 2025Article
- The relationship between chronic air pollution exposure, neighborhood environmental vulnerability, and adverse COVID-19 morbidities among hospitalized New York City residents.Environment international · 2025Article
- Modulation of COVID-19 incidence by environmental stressors is variant between pre-Omicron and Omicron periods.Scientific reports · 2025Article
- Effects of the COVID-19 pandemic on individuals with chemical intolerance.Family medicine and community health · 2025Article
- Air Pollution in Relation to COVID-19 Morbidity and Mortality: A Large Population-Based Cohort Study in Catalonia, Spain (COVAIR-CAT).Research report (Health Effects Institute) · 2024Article
- The Impact of COVID-19 Health Measures on Adults With Multiple Chemical Sensitivity: Cross-Sectional Study.JMIR formative research · 2024Article
- Article
- Occurrence of COVID-19 and serumGlobal epidemiology · 2024Article
- Reduction by air purifier of particulate concentration during orthodontic procedures: a pilot study.BMC oral health · 2024Article
- Environmental factors are associated to hospital outcomes in COVID-19 patients during lockdown and post-lockdown in 2020: A nationwide study.Environmental research · 2023Article
- Peculiar weather patterns effects on air pollution and COVID-19 spread in Tokyo metropolis.Environmental research · 2023Observational
- Long-Term Exposure to Ambient Air Pollution and Mortality among Four Million COVID-19 Cases in Italy: The EpiCovAir Study.Environmental health perspectives · 2023Article
- Discussion about the Latest Findings on the Possible Relation between Air Particulate Matter and COVID-19.International journal of environmental research and public health · 2023Article
- Exploring spatiotemporal pattern in the association between short-term exposure to fine particulate matter and COVID-19 incidence in the continental United States: a Leroux-conditional-autoregression-based strategy.Frontiers in public health · 2023Article
- There is a need for more precise models to assess the determinants of health crises like COVID-19.Frontiers in public health · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsThe coronavirus disease 2019 (COVID-19) pandemic is severely threatening and challenging public health worldwide. Epidemiological studies focused on the influence of outdoor air pollution (AP) on COVID-19 risk have produced inconsistent conclusions. We aimed to quantitatively explore this association using a meta-analysis.
methodsWe searched for studies related to outdoor AP and COVID-19 risk in the Embase, PubMed, and Web of Science databases. No language restriction was utilized. The search date entries were up to August 13, 2021. Pooled estimates and 95% confidence intervals (CIs) were obtained with random-/fixed-effects models. PROSPERO registration number: CRD42021244656.
resultsA total of 35 articles were eligible for the meta-analysis. For long-term exposure to AP, COVID-19 incidence was positively associated with 1 μg/m
conclusionsOutdoor air pollutants are detrimental factors to COVID-19 outcomes. Measurements beneficial to reducing pollutant levels might also reduce the burden of the pandemic.
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Registered trials
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.