Dust storms affect subsequent emergency hospital admissions

A new study published in the journal Respirology reveals that dust storms have an adverse effect on emergency hospital admission for chronic lung disease, often known as chronic obstructive pulmonary disease (COPD).

Dust storms in East Asia and are caused by wind-blown dust that travels long distances from North China. The concentrations of coarse particles—those with a diameter ranging from 2.5 to 10 micrometers—can reach very high levels.

Researchers led by Prof. TW Wong, MBBS, MSc, FFPH, of The Chinese University of Hong Kong, obtained data on daily emergency admissions to major hospitals for respiratory diseases in Hong Kong, and indices of air pollutants and meteorological variables from January 1998 to December 2002. They then identified five during the period and made comparisons using independent t-tests case-crossover analysis.

Results showed that significant increases in emergency due to COPD were found 2 days after a dust storm episode, with a 5% increase in risk. There is a link between the raised concentrations of coarse particles encountered during dust storms and a higher risk of hospital illnesses for respiratory illness, in particular, for COPD.

"Our findings show a need for timely warning for patients with chronic lung diseases to avoid exposure to air pollution when a dust storm is imminent," Tam notes.

An accompanying review article by Professor Frank J. Kelly of King's College London and colleagues looks at how detriments such as dust storms on air quality can be used to create advanced warnings of potentially health-damaging effects, in the form of national air quality indices and proactive alert services.

"With future developments, the ultimate aim is to empower people to modify behavior in a way that protects their health as well as the quality of the air they breathe," Kelly concludes.


Explore further

SKoreans buy air purifiers amid "yellow dust" warning

More information: Wong et al. Effect of Dust Storm Events on Daily Emergency Admissions for Respiratory Diseases. Respirology 2011: DOI: 10.1111/j.1440-1843.2011.02056.x

Wong et al. Effect of Dust Storm Events on Daily Emergency Admissions for Respiratory Diseases. Respirology 2011: DOI: 10.1111/j.1440-1843.2011.02056.x

Provided by Wiley
Citation: Dust storms affect subsequent emergency hospital admissions (2011, December 5) retrieved 21 July 2019 from https://medicalxpress.com/news/2011-12-storms-affect-subsequent-emergency-hospital.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more