ReviewJournal of transport & health2021
Effect of COVID-19 on air quality and pollution in different countries.
Review in Journal of transport & health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled 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.
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
14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 66 citations in OpenAlex.
- A review of strategies and their effectiveness in reducing indoor airborne transmission and improving indoor air quality.Environmental research · 2022Pooled it
- Impact of COVID-19 Pandemic on Air Quality: A Systematic Review.International journal of environmental research and public health · 2022Pooled it
- Comparative adsorption performance of bare and chitosan-coated La-Zn-Fe spinel/perovskite nanocomposites for efficient dye removal.Scientific reports · 2026Article
- Air pollution and cardiovascular disease: a systematic review of the effects of air pollution, including bushfire smoke, on cardiovascular disease.American heart journal plus : cardiology research and practice · 2025Article
- Carbon-Nanotube-Based Nanocomposites in Environmental Remediation: An Overview of Typologies and Applications and an Analysis of Their Paradoxical Double-Sided Effects.Journal of xenobiotics · 2025Review
- Design of silver-zinc-nickel spinel-ferrite mesoporous silica as a powerful and simply separable adsorbent for some textile dye removal.Scientific reports · 2024Article
- Spatial shifting of COVID-19 clusters and disease association with environmental parameters in India: A time series analysis.Environmental research · 2023Article
- Characterization of graphene oxide-ziziphus seeds and its application as a hazardous dye removal adsorbent.Scientific reports · 2023Article
- Association between air pollutants and birth defects in Xiamen, China.Frontiers in pediatrics · 2023Article
- A mini-review: positive impact of COVID-19 on Arial health and ecology.Environmental science and pollution research international · 2022Review
- Temporal characteristics and spatial heterogeneity of air quality changes due to the COVID-19 lockdown in China.Resources, conservation, and recycling · 2022Article
- Regulating light-duty vehicle emissions: an overview of US, EU, China and Brazil programs and its effect on air quality.Clean technologies and environmental policy · 2022Review
- Does the "Blue Sky Defense War Policy" Paint the Sky Blue?-A Case Study of Beijing-Tianjin-Hebei Region, China.International journal of environmental research and public health · 2021Article
- Impacts of COVID-19 on individuals' mobility behavior in Pakistan based on self-reported responses.Journal of transport & health · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionCOVID-19 is a pandemic that affected humans' lives and activities through the year 2020 in a way that was not witnessed in recent years. Many governments declared a complete lockdown as a try to stop the transmission of the disease. This lockdown resulted in a good recovery in environmental health, where air pollutants levels dramatically decreased. THEORY: There are two relations between air pollution and COVID-19, one is before the disease spread, and the other is after. Before the disease spread, many areas had high levels of contaminants in the air due to industrial activities, transportation, and human density. These areas had the highest infection rates and death cases. This could be attributed to two reasons, the aerosol could help to spread the virus at a higher rate, and air pollutants could negatively affect peoples' lungs, which assisted the virus in attacking the patients brutally.
resultsAfter the disease spread, the lockdown that was applied in the major industrial countries led to a decrease in the pollutants levels and an increase in the ozone level in the air. This lockdown improved the air quality worldwide to a level that all political conferences and agreements could not reach. In this review, we are showing the impact of COVID-19 on air pollutants in different countries. SUMMARY: This paper provides information about pollutants' influence on human and environmental health that other researchers obtained in different areas of the globe before and after the pandemic. This could give ideas about the impact of humans on the environment and the possible ways of recovering the environment's health.
Indexed as
Identifiers
What OpenQuestion holds
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.