Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Meta-Analysis
. 2024 Jul;79(7):1725-1760.
doi: 10.1111/all.16041. Epub 2024 Feb 4.

The impact of outdoor pollution and extreme temperatures on asthma-related outcomes: A systematic review for the EAACI guidelines on environmental science for allergic diseases and asthma

Affiliations
Meta-Analysis

The impact of outdoor pollution and extreme temperatures on asthma-related outcomes: A systematic review for the EAACI guidelines on environmental science for allergic diseases and asthma

Ioana Agache et al. Allergy. 2024 Jul.

Abstract

Air pollution is one of the biggest environmental threats for asthma. Its impact is augmented by climate change. To inform the recommendations of the EAACI Guidelines on the environmental science for allergic diseases and asthma, a systematic review (SR) evaluated the impact on asthma-related outcomes of short-term exposure to outdoor air pollutants (PM2.5, PM10, NO2, SO2, O3, and CO), heavy traffic, outdoor pesticides, and extreme temperatures. Additionally, the SR evaluated the impact of the efficacy of interventions reducing outdoor pollutants. The risk of bias was assessed using ROBINS-E tools and the certainty of the evidence by using GRADE. Short-term exposure to PM2.5, PM10, and NO2 probably increases the risk of asthma-related hospital admissions (HA) and emergency department (ED) visits (moderate certainty evidence). Exposure to heavy traffic may increase HA and deteriorate asthma control (low certainty evidence). Interventions reducing outdoor pollutants may reduce asthma exacerbations (low to very low certainty evidence). Exposure to fumigants may increase the risk of new-onset asthma in agricultural workers, while exposure to 1,3-dichloropropene may increase the risk of asthma-related ED visits (low certainty evidence). Heatwaves and cold spells may increase the risk of asthma-related ED visits and HA and asthma mortality (low certainty evidence).

Keywords: GRADE; asthma; extreme temperatures; outdoor pollution; systematic review.

PubMed Disclaimer

References

REFERENCES

    1. WHO factsheet: Asthma 2017 Available from: https://www.who.int/news‐room/fact‐sheets/detail/asthma
    1. Global Asthma Network. The Global Asthma Report. Auckland; 2018.
    1. Raulf M, Buters J, Chapman M, et al. Monitoring of occupational and environmental aeroallergens‐EAACI position paper. Concerted action of the EAACI IG occupational allergy and Aerobiology & air Pollution. Allergy. 2014;69(10):1280‐1299.
    1. Guarnieri M, Balmes JR. Outdoor air pollution and asthma. Lancet. 2014;383:1581‐1592.
    1. Annesi‐Maesano I, Forastiere F, Balmes J, et al. The clear and persistent impact of air pollution on chronic respiratory diseases: a call for interventions. Eur Respir J. 2021;57(3):2002981.

MeSH terms