Navigation Links
Heavy traffic makes breathing a burden in children
Date:12/14/2007

Exposure to traffic pollution may increase respiratory problems and reduce lung volumes in children with asthma, according to researchers who studied the effects of road and traffic density on childrens lung function and respiratory symptoms in the border town of Ciudad Juarez in Mexico.

Our results show that close proximity to vehicular traffic-related emissions, either at home or at school, can lead to chronic effects in the respiratory health of children with asthma, said Fernando Holguin, M.D., M.P.H., assistant professor of pulmonary medicine at Emory University School of Medicine, and lead author of the study, which appeared in the second issue for December of the American Journal of Respiratory and Critical Care Medicine, published by the American Thoracic Society.

Traffic-related pollutants are known to be associated with asthma severity, but to what extent they affect airway inflammation and lung volume in both asthmatic and nonasthmatic children was unknown. Major cities along the northern and southern US borders often have high levels of vehicular traffic flows, especially at the border crossing points. Vehicular traffic emissions from the high density of border crossing traffic may be negatively affecting the health of populations who live in nearby areas, said Dr. Holguin.

To investigate how specific traffic-related pollutants affected childrens lung function and respiratory symptoms, the researchers recruited 200 age- and sex-matched asthmatic and non-asthmatic schoolchildren from ages six to 12. Over the course of a year, they measured road and traffic density and traffic-associated pollutants near the childrens homes and schools, and evaluated each childs lung function and respiratory symptoms consecutively for four months.

Asthmatic children, but not children without asthma, were affected by living in homes in areas with high road density. They had higher levels of exhaled NO, as well as reductions in both lung volume and airflow. Living within 50 meters of high density road areas increased the chances of respiratory symptoms in asthmatic children by more than 50 percent.

These results may have implications for asthmatic children residing in these conditionsespecially among those who may not be adequately controlled with medicationsfor they may be more susceptible to vehicular emissions, said Dr. Holguin.

While increased traffic and road density near schools also indicated respiratory effects in both asthmatic and nonasthmatic children, the data did not attain statistical significance in this study. Nonetheless, Dr. Holguin noted, this finding could have significant public health policy implications because a significant proportion of schools in many countries are located in close proximity to major roads.

This is the first study of its kind to evaluate traffic-related emissions exposure in a large group of children with and without asthma over an entire year. The findings support and add to previous studies which have looked at the effects of traffic emissions on children, but it may have been underpowered to detect significant associations between respiratory outcomes and specific pollutants.

These results are significant because they quantitatively demonstrate that closer exposure to roads lead to chronic airway inflammation and reductions in lung function, said Dr. Holguin. This study points the way for future research to determine what preventive measures may be taken to reduce exposure and or the health effects of vehicular emissions in susceptible children.


'/>"/>

Contact: Keely Savoie
ksavoie@thoracic.org
212-315-8620
American Thoracic Society
Source:Eurekalert

Related medicine news :

1. Heavy Drinking Boosts Stroke Risk for Chinese Men
2. Good Cholesterol Wont Help Heavy-Drinking Older Men
3. Family history of alcoholism affects response to drug used to treat heavy drinking
4. Diabetes dilemma: older people with diabetes face a heavy burden from co-existing health conditions
5. Age, burden, divorce and heavy tea consumption are significant risk factors for erosive esophagitis
6. Heavy drinking, conduct disorder linked to high-risk sexual behavior
7. Traffic Fumes Plus Genes Boosts Kids Asthma Risk
8. A drug-sensitive traffic cop tells potassium channels to get lost
9. Jogging in Traffic Cuts Blood Flow to Heart
10. Detroit Metro Tower Air Traffic Controllers File Lawsuit Alleging Improper Mold Removal and Health Effects
11. Protein-dependent switch regulates intracellular trafficking in epithelial cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... , ... June 27, 2016 ... ... the patient payment industry today announced its strategic partnership with Connance, a ... workflows. , The two companies’ proven, proprietary technology combine to provide health ...
(Date:6/26/2016)... (PRWEB) , ... June 26, 2016 , ... On June ... sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table in Battle Creek, ... of the city’s history as home to some of the world’s leading providers of ...
(Date:6/26/2016)... Lake Orion, Clarkston, Michigan (PRWEB) , ... June ... ... direction with respect to fertility once they have been diagnosed with endometriosis. These ... tolerable intercourse but they also require a comprehensive approach that can help for ...
(Date:6/25/2016)... California (PRWEB) , ... June 25, 2016 , ... "With ... fit their specific project," said Christina Austin - CEO of Pixel Film Studios. ... customizable and all within Final Cut Pro X . Simply select a ProHand ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... On Friday, ... presented a Bronze Wellness at Work award to iHire in recognition of their exemplary ... part of the 7th annual Maryland Workplace Health & Wellness Symposium at the BWI ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... DUBLIN , June 23, 2016 ... the "Surgical Procedure Volumes: Global Analysis (United States, ... Australia, Canada)" report to their offering. ... an essential tool for healthcare business planners, provides surgical ... looks at surgery trends with an in-depth analysis of ...
(Date:6/23/2016)... , June 23, 2016 ... but it continues to present great opportunities to investors. ... for today: Intrexon Corp. (NYSE: XON ), ... Pharmaceuticals Inc. (NASDAQ: ARNA ), and Regeneron ... about these stocks and receive your complimentary trade alerts ...
(Date:6/23/2016)... 23, 2016 Leading BioSciences Inc., a ... conditions resulting from a breakdown of the mucosal ... Greg Doyle as chief executive officer. Mr. ... management team and board of directors, previously served ... He will provide continued leadership and strategic direction ...
Breaking Medicine Technology: