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:6/26/2016)... ... 26, 2016 , ... Pixel Film Studios Released ProSlice Levels, a Media Slicing ... their videos a whole new perspective by using the title layers in ProSlice ... , ProSlice Levels contains over 30 Different presets to choose from. FCPX ...
(Date:6/26/2016)... ... June 26, 2016 , ... ... they have been diagnosed with endometriosis. These women need a treatment plan to ... a comprehensive approach that can help for preservation of fertility and ultimately achieving ...
(Date:6/25/2016)... Miami, FL (PRWEB) , ... June 25, 2016 , ... The temporary closing of Bruton ... Plant City Observer , brings up a new, often overlooked aspect of head lice: ... The closing for fumigation is not a common occurrence, but a necessary one in the ...
(Date:6/25/2016)... ... , ... As a lifelong Southern Californian, Dr. Omkar Marathe earned his Bachelors ... Geffen School of Medicine at UCLA. He trained in Internal Medicine at Scripps Green ... hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had the opportunity to train ...
(Date:6/25/2016)... Montreal, Canada (PRWEB) , ... June 25, 2016 , ... ... the pursuit of success. In terms of the latter, setting the bar too high ... low, risk more than just slow progress toward their goal. , Research from ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... June 27, 2016 Jazz Pharmaceuticals plc (Nasdaq: ... under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as ... Celator Pharmaceuticals, Inc. ("Celator"; Nasdaq: CPXX ) ... Daylight Time). As previously announced on May ... definitive merger agreement under which Jazz Pharmaceuticals has commenced ...
(Date:6/24/2016)... 24, 2016  Global Blood Therapeutics, Inc. (GBT) (NASDAQ: ... novel therapeutics for the treatment of grievous blood-based ... closing of its previously announced underwritten public offering ... public offering price of $18.75 per share. All ... by GBT. GBT estimates net proceeds from the ...
(Date:6/24/2016)... -- Dehaier Medical Systems Ltd. (NASDAQ: DHRM ... sells medical devices and wearable sleep respiratory products in ... agreement with Hongyuan Supply Chain Management Co., Ltd. (hereinafter ... 2016, to develop Dehaier,s new Internet medical technology business. ... leverage Hongyuan Supply Chain,s sales platform to reach Dehaier,s ...
Breaking Medicine Technology: