HOME >> BIOLOGY >> NEWS
Even Moderate Air Pollution Reaching Eastern Wilderness Decreases Mountain Hikers' Lung Function

Even in a mountain wilderness, periods of moderate levels of ozone -- the main ingredient of urban smog -- can decrease active people's lung function, a study led by researchers at Brigham and Women's Hospital and the Harvard School of Public Health has found.

The researchers said their two-year study showed ozone levels common to non-urban parts of the United States were associated with decreases in lung function in adult hikers on Mt. Washington in the White Mountain National Forest in New Hampshire. These declines were more pronounced in hikers with a history of asthma or wheezing.

Their study results are published today in the February issue of Environmental Health Perspectives, the monthly journal of the National Institute of Environmental Health Sciences.

The study evaluated the effects of ozone and other air pollutants, including fine particulate matter and suspended acid droplets, on the lung function of 530 nonsmokers hiking on New Hampshire's Mount Washington during two summers. When ozone went up slightly, lung function decreased, the researchers said.

The hikers ranged from 18 to 64 years of age and hiked an average of eight hours each. During this time, they were exposed to average ozone concentrations from 21 to 74 parts per billion (ppb) per hour. The overall average exposure was 40 ppb, which the researchers called "a relatively low level characteristic of much of the continental United States."

Researchers measured the hikers' forced expiratory volume -- the volume of air they could expel from their lungs in one second -- and forced vital capacity -- the total volume of air expelled from the lungs - before and after their hikes. They found that a 50 ppb increase in ozone concentration was associated with decreased lung function over the course of the hike - an average 2.6 percent decline in forced expiratory volume, and a 2.
'"/>

Contact: John Peterson
Peterso4@niehs.nih.gov
919 541-7860
NIH/National Institute of Environmental Health Sciences
22-Jan-1998


Page: 1 2

Related biology news :

1. Moderate alcohol consumption increases plasma levels of a protective hormone
2. Moderate iron deficiency affects cognitive performance - but iron supplementation improves it
3. Moderate alcohol consumption after meals can decrease levels of insulin
4. Moderate alcohol consumption during pregnancy is risky too
5. Moderate vitamin E supplementation may lower diabetics cardiovascular risk
6. Moderate alcohol consumption increases bone mineral density in elderly women
7. Moderate alcohol consumption may reduce your chances of a heart attack
8. Moderate caffeine use does not increase miscarriage risk but high caffeine use doubles risk
9. Duke Researchers Finds That Moderate Caffeine Use Boosts Blood Pressure, Potential For Heart Disease
10. No Such Luck: Nitrogen From Air Pollution Unlikely to Moderate Global Warming
11. Pollution history documented through shell remains provides tool to study ecosystem change

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2016)...  IMPOWER physicians supporting Medicaid patients in ... standard in telehealth thanks to a new partnership with ... IMPOWER patients can routinely track key health measurements, such ... and, when they opt in, share them with IMPOWER ... local retail location at no cost. By leveraging this ...
(Date:3/31/2016)... R.I. , March 31, 2016  Genomics firm ... of founding CEO, Barrett Bready , M.D., who ... members of the original technical leadership team, including Chief ... President of Product Development, Steve Nurnberg and Vice President ... returned to the company. Dr. Bready served ...
(Date:3/23/2016)... 2016 Einzigartige ... und Stimmerkennung mit Passwörtern     ... MESG ), ein führender Anbieter digitaler Kommunikationsdienste, ... SpeechPro zusammenarbeitet, um erstmals dessen Biometrietechnologie einzusetzen. ... Möglichkeit angeboten, im Rahmen mobiler Apps neben ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... Ginkgo Bioworks , a leading organism design company ... as one of the World Economic Forum,s Technology ... companies. Ginkgo Bioworks is engineering biology to manufacture ... the nutrition, health and consumer goods sectors. The ... Fortune 500 companies to design microbes for their ...
(Date:6/24/2016)... ... June 24, 2016 , ... While the majority of ... the Cary 5000 and the 6000i models are higher end machines that use the ... of the spectrophotometer’s light beam from the bottom of the cuvette holder. , ...
(Date:6/23/2016)... Wausau, WI (PRWEB) , ... June 23, 2016 ... ... probiotic supplements, is pleased to announce the launch of their brand, UP4™ Probiotics, ... supplements for over 35 years, is proud to add Target to its list ...
(Date:6/23/2016)... 23, 2016 A person commits a crime, and ... to track the criminal down. An outbreak of ... Drug Administration (FDA) uses DNA evidence to track down the ... Sound far-fetched? It,s not. The FDA has increasingly used a ... of foodborne illnesses. Put as simply as possible, whole genome ...
Breaking Biology Technology:
Cached News: