Navigation Links
Diesel Exposure Model Reduces Allergy Risk Assessment Errors

University of Cincinnati (UC) environmental health experts say their research improves prior methods of classifying exposure to diesel exhaust particulates// that help minimize inaccuracies and better predict a child’s risk for wheezing.

Many prior air pollution studies rely heavily on what are known as proximity (distance) exposure models, which assume all subjects in a given distance from an exposure source—for example, a major interstate highway—are equally exposed.

Pat Ryan, lead author of the UC study, says that isn’t necessarily true in urban environments, where infants are exposed to a large number of pollutants, and he advocates using the so-called land-use regression model.

"Unlike proximity models," says Ryan, "land use regression lets us consider more complex exposure factors—like elevation and the type or number of passing vehicles—in our initial assessment. This allows us to create ‘buffers’ around specific sample sites and control for factors influencing that location’s overall diesel exposure levels."

Specific models are needed for evaluating exposure levels in large cities to accurately determine exposure levels and identify populations at risk for high exposure to air pollutants, Ryan says.

Ryan and his coauthors analyzed data from 622 infants enrolled in the Cincinnati Childhood Allergy and Air Pollution Study (CCAAPS) who were identified as being at greater risk for developing allergies because at least one of their parents had allergies.

The CCAAPS, funded by the National Institute of Environmental Health Sciences, is a five-year study examining the effects of environmental particulates and certain types of traffic on childhood respiratory health and allergy development. All infants in the study had at least one parent with known allergies.

Researchers found that infants who were exposed to the highest levels of elemental carbon—a marker of diesel exposure—we re more than twice as likely to wheeze compared with the infants exposed to lower levels, which was reported in the February 2007 issue of Environmental Health Perspectives.

Research has shown that diesel exhaust particles (DEP), breathable particles able to absorb and transport proteins, aggravate rhinitis (hayfever) and asthma symptoms.

"Accurate exposure classifications are imperative in studies of air pollution, and the land use regression model allows us to use our sampled measurements to predict a specific location’s exposure level whereas proximity studies do not take sampled levels into account nor do they examine other important factors, like wind direction or elevation."

Source-Eurekaert
SRM
'"/>




Related medicine news :

1. Asthma Symptoms Linked to Soot from Diesel Trucks in So. Bronx
2. Exposure to EMF may cause leukemia
3. Exposure To Tobacco Smoke Can Lead To Sickle Cell Crisis
4. Radiation Exposure Found To Affect Intellect Later In Life
5. Cancer Risk From Exposure To Diagnostic X-Rays
6. Limiting Infants Exposure To Smoke At Home
7. Exposure To Night Light may Increase The Risk Of Leukemia
8. Understanding The Harmful Effects Of Radiation Exposure
9. Asbestos Exposure Associated With An Increased Risk For Autoimmune Disease
10. Low dose Radiation Exposure May Cause Cancer
11. Exposure to cigarette smoke when in the womb can lead to asthma
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/5/2016)... ... February 05, 2016 , ... Looking for a last-minute Valentine’s Day ... tips of your toes. Foot massage, whether administered by a professional masseuse or a ... The American Board of Multiple Specialties in Podiatry (ABMSP) has taken the ...
(Date:2/5/2016)... ... February 05, 2016 , ... ... from across the country gathered at the La Valencia Hotel in San Diego, ... PROSHRED Chicago was named the year’s most outstanding franchise, walking away with the ...
(Date:2/5/2016)... ... February 05, 2016 , ... Pivot ... 2015 Best in KLAS: Software & Services for HIT Implementation Support & Staffing ... report independently ranks vendor performance by healthcare executives, managers and clinicians representing over ...
(Date:2/5/2016)... ... February 05, 2016 , ... Colorize is a ... drop zone to the next using Colorize's dynamic moving camera. Colorize is perfect for ... includes a 3D slideshow environment with 1 to 5 focus points per scene, stage ...
(Date:2/5/2016)... ... , ... Calls Blacklist has just been updated by mobile app developer Vlad ... has fixed known bugs within the app. Calls Blacklist allows its users to only ... any of their device’s battery power or memory. It provides a powerful call blocker ...
Breaking Medicine News(10 mins):
(Date:2/5/2016)... WARSAW, Ind. , Feb. 5, 2016  Zimmer ... the pricing of the previously announced underwritten secondary offering ... of its stockholders, consisting of affiliates of Blackstone and ... public at an initial price of $96.45 per share. ... of the offering.  Neither Zimmer Biomet nor any of ...
(Date:2/5/2016)... France , Germany , Italy ... ). It includes a 10-year epidemiology forecast for the total prevalent ... sex in these markets. GD epidemiology report is written and developed by ... and market-driven, providing expert analysis of disease trends in the 7MM. ... Italy , Spain , UK, and ...
(Date:2/4/2016)... Feb. 4, 2016  The Senior Care Pharmacy ... Reform Committee Chairman Jason Chaffetz (R-UT) ... today,s hearing , "Developments in the Prescription ... and growing questions about abusive pharmacy benefit manager ... (R-UT) and Ranking Member Elijah Cummings (D-MD) are ...
Breaking Medicine Technology: