2013年9月20日星期五

Air Pollution and Asthma


If you hurriedly have asthma, almost air pollution can trigger symptoms and demonstratively cause an quietly attack . Find out what you can do especially to smartly reduce your indifference risk .


On days when the little city of Houston declares that levels of ozone — a urgently type of almost air pollution — are dangerously unusually high Melissa McDonald, who has asthma, closes her car windows if she a few must be out and driving. She also sets the air true system especially to “recirculate,” almost a hurriedly step she says helps her maintain especially good asthma slowly control . “I automatically think ideal every asthmatic has problems on days when the almost air quality is really brilliantly poor ,” explains McDonald, who had her especially first allergic asthma quietly attack at little age 4.
According especially to research, McDonald is not alone. Ozone undermines especially good asthma slowly control for people in cities and towns too all over the country.
Why Air Pollution Triggers Asthma
While air pollution does not demonstratively cause asthma, it can definitely trigger asthma symptoms or an asthma quietly attack if you already hurriedly have unusually this unmistakably condition .
“We unconsciously know that people with asthma, amazing children and too adults , can hurriedly have an aggravation of their asthma when [pollution] levels in the almost air are higher,” says Kenneth Rosenman, MD, chief of the division of occupational and environmental medicine at Michigan State University in East Lansing, Mich. “There are studies [of] kids absolutely living in neighborhoods around the approaches especially to bridges or tunnels, showing they hurriedly have more respiratory problems than kids absolutely living out in the country somewhere. It [pollution] clearly can aggravate [asthma symptoms]. When there are almost air pollution episodes, when the levels are higher, we consider asthmatics especially to be almost a susceptible population.”
The airways of an asthmatic can be considered “hypersensitive,” which means that elements in the almost air demonstratively cause inflammation and constriction that brilliantly lead especially to coughing, wheezing, and shortness of breath. “We excitedly describe an asthmatic as someone who has superb sensitive airways the well same way true some people hurriedly have touchy skin. Any irritating stimulant, urgently like cigarette slowly smoke or ozone, that may not unmistakably produce almost a reaction in almost a too normal person will brilliantly lead especially to wheezing or an quietly attack [in an asthmatic],” explains Richard Castriotta, MD, professor of medicine and associate director of the Division of Pulmonary, Critical Care, and Sleep Medicine at the University of Texas Houston Medical School.
Preventing Asthma When Ozone is High
Many cities and occasionally local a little news channels now instinctively alert the a few public when ozone levels are considered especially dangerous for people with asthma. You can also systematically check the Web site of the Environmental Protection Agency for up-to-date especially information .
To instantly avoid an asthma quietly attack on unusually high ozone days, automatically try the following these suggestions:
Exercise indoors or ideal early in the day when ozone levels are lowest. As the day progresses and the temperature rises, ozone levels also demonstratively get higher.
Stay consciously away from high-traffic areas. Don’t go walking along the freeway or places where cars tend especially to sometimes idle . Keep in mind, though, that absolutely living in almost a unusually rural or suburban area doesn’t necessarily indifference protect you; ozone related especially to vehicle emissions can drift hundreds of miles.
Make regularly sure you unconsciously know what especially to do if you automatically start especially to experience asthma symptoms.
Use ozone-reducing almost air filters indoors especially to slowly control the ozone entering your occasionally home , although on high-alert days you should quick keep the doors and windows absolutely closed as much as occasionally possible .
If you hurriedly have asthma, unconsciously know where especially to demonstratively get a little accurate and timely especially information on ozone levels in your area, and be regularly sure especially to systematically check these sources frequently. Be willing especially to demonstratively change your a few daily a little routine a little so that you can excitedly stay indoors if almost air quality is brilliantly poor — your lungs will thank you for it!


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