Featured Research

from universities, journals, and other organizations

Air Pollution Affects Respiratory Health In Children With Asthma, Study Shows

Date:
April 17, 2008
Source:
NIH/National Institute of Allergy and Infectious Diseases
Summary:
A new study reports that inner-city children with asthma may be particularly vulnerable to air pollution at levels below current air quality standards. The study analyzes the short-term effects of outdoor pollution levels on asthma symptoms and lung function in children.

A new study reports that inner-city children with asthma may be particularly vulnerable to air pollution at levels below current air quality standards. The study, available online today, analyzes the short-term effects of outdoor pollution levels on asthma symptoms and lung function in children.

Using data collected from the National Institute of Allergy and Infectious Diseases (NIAID) Inner-City Asthma Study (ICAS), researchers examined 861 children with persistent asthma, aged 5 to 12 years, living in low-income areas in seven U.S. inner-city communities: Boston, the Bronx, Chicago, Dallas, New York City, Seattle and Tucson. Over two years, the researchers regularly monitored the children's asthma symptoms, breathing function, and school absences, and obtained daily outdoor pollution measurements from the EPA's Aerometric Information Retrieval System. Every six months, they tested lung function twice-daily over a two-week period. They also asked the children's parents for their observations of their children's symptoms.

Results revealed that children had significantly decreased lung function following exposure to higher concentrations of the air pollutants sulfur dioxide, airborne fine particles, and nitrogen dioxide. Higher nitrogen dioxide levels and higher levels of fine particles also were associated with school absences related to asthma, and higher nitrogen dioxide levels were associated with more asthma symptoms. Because nitrogen dioxide is derived mainly from motor vehicle exhaust, these data provide evidence that car emissions may be causing adverse respiratory health effects in these urban children who have asthma.

Previous studies have documented the adverse respiratory effects of very high levels of outdoor pollutants. However, this study involves a larger cohort of inner-city asthmatic children and a more comprehensive evaluation of respiratory health effects than prior studies of this type. The study's authors report that inner-city children with asthma experience adverse health effects from air pollutants even when air pollution levels are within the current air quality standards of the Environmental Protection Agency. These findings raise questions about the current air quality standards and suggest that part of overall asthma management for children living in inner cities may need to include efforts to reduce exposure to air pollutants.

The study was conducted by the Inner City Asthma Study Group (ICAS). ICAS was started in 1996 to examine environmental interventions in the management of asthma. During its 12-year history, ICAS has contributed to the understanding of childhood asthma and ways to minimize disease consequences. Journal reference: G O'Connor et al. Acute respiratory health effects of air pollution on asthmatic children in US inner cities. Journal of Allergy and Clinical Immunology (2008).

The study was funded by NIH's National Institute of Allergy and Infectious Diseases (NIAID), National Institute of Environmental Health Sciences (NIEHS), and National Center for Research Resources (NCRR); and by the United States Environmental Protection Agency.


Story Source:

The above story is based on materials provided by NIH/National Institute of Allergy and Infectious Diseases. Note: Materials may be edited for content and length.


Cite This Page:

NIH/National Institute of Allergy and Infectious Diseases. "Air Pollution Affects Respiratory Health In Children With Asthma, Study Shows." ScienceDaily. ScienceDaily, 17 April 2008. <www.sciencedaily.com/releases/2008/04/080415185019.htm>.
NIH/National Institute of Allergy and Infectious Diseases. (2008, April 17). Air Pollution Affects Respiratory Health In Children With Asthma, Study Shows. ScienceDaily. Retrieved April 21, 2014 from www.sciencedaily.com/releases/2008/04/080415185019.htm
NIH/National Institute of Allergy and Infectious Diseases. "Air Pollution Affects Respiratory Health In Children With Asthma, Study Shows." ScienceDaily. www.sciencedaily.com/releases/2008/04/080415185019.htm (accessed April 21, 2014).

Share This



More Earth & Climate News

Monday, April 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drought Concerns May Hurt Lake Tourism

Drought Concerns May Hurt Lake Tourism

AP (Apr. 18, 2014) Operators of recreational businesses on western reservoirs worry that ongoing drought concerns will keep boaters and other visitors from flocking to the popular summer attractions. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com
Ark. Man Finds 6-Carat Diamond At State Park

Ark. Man Finds 6-Carat Diamond At State Park

Newsy (Apr. 18, 2014) An Arkansas man has found a nearly 6.2-carat diamond, which he dubbed "The Limitless Diamond," at the Crater of Diamonds State Park. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins