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:
(Date:12/15/2014)... --Research and Markets ( http://www.researchandmarkets.com/research/87pph8/global_facial ) ... Facial Recognition Market 2015-2019" report to their ... Facial recognition is a technology used ... measures the overall facial feature of a person ... distance between eyes. Facial recognition is used for ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has ... in India 2015-2019" report to their offering. ... this market is the adoption of multimodal biometric ... characteristic of an individual for verification and identification ...
(Date:12/11/2014)... 2014  Data Sciences International (DSI), the global ... new series of digital telemetry implants to meet ... series, part of the PhysioTel™ Digital platform, was ... physiologic data when incorporating functional endpoints into repeat-dose ... toxicology studies has evolved from short ECG strips ...
Breaking Biology News(10 mins):Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 2Global Facial Recognition Market 2015-2019: Key Vendors are 3M Cogent, Cognitec Systems, NEC and Safran Group 3Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2
(Date:12/19/2014)... 2014 In contrast to traditional LED ... various colors, Valoya uses proprietary LED technology to incorporate ... possible uniformity which is critical in low proximity installations. ... accuracy throughout its lifetime which is up to four ... , "The investment cost was clearly higher when compared ...
(Date:12/19/2014)...   ISN has released its third annual ... publication series. With data aggregated from over eight ... within its online contractor management platform, ISNetworld, this three-part ... (KPI) statistics. The Contractor ... is available in two industry specific volumes: Oil ...
(Date:12/17/2014)... 2014 Achim Noack has been named ... Group. In this position, Noack will assist Jerry Stoller, ... develop marketing strategy and supervise global marketing management and ... has tremendous knowledge and experience in the crop protection ... experience and innovative thinking will be a great asset ...
(Date:12/17/2014)... 2014 Gene synthesis and bioengineering ... entered into a technology access and services agreement ... DNA2.0’s proprietary protein engineering technology, known as “ProteinGPS®” ... are extremely excited that the global leader ADM ... proprietary bioengineering technology has now been validated through ...
Breaking Biology Technology:ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 2ISN Releases Third Edition of US Contractor Health & Safety Performance Indicators Publication Series 3Achim Noack Joins Stoller Group as Global Vice President of Marketing and Administration 2ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2
Cached News: