Featured Research

from universities, journals, and other organizations

Season, time of day appear to predict higher UV levels, need for sun safety measures among skiers

Date:
December 6, 2010
Source:
JAMA and Archives Journals
Summary:
Ultraviolet radiation levels may remain high during winter months, and conditions can change rapidly, suggesting that adults participating in outdoor sports should rely on the season and time of day when judging the need for protective clothing and sunscreen, according to a new report.

Ultraviolet (UV) radiation levels may remain high during winter months, and conditions can change rapidly, suggesting that adults participating in outdoor sports should rely on the season and time of day when judging the need for protective clothing and sunscreen, according to a report in the November issue of Archives of Dermatology, one of the JAMA/Archives journals.

"Over 62,000 new cases of melanoma will occur this year that will claim 8,000 lives, along with over a million cases of basal (a form of slow-growing skin cancer) and squamous (a form of cancer that may occur in various organs, including the skin, lips, mouth or esophagus) skin cancer, both of which are associated with cancer at all sites," the authors write as background information in the article. "The main cause of skin cancer is exposure to UV radiation."

Peter A. Andersen, Ph.D., from San Diego State University, Calif., and colleagues investigated the temporal, seasonal, altitudinal and geographic variables to predict the prevalence of UV radiation at North American ski resorts and the decision of adults participating in outdoor snow activities to protect their skin from the damaging rays. Data were collected at 32 high-altitude ski resorts in western North America from 2001 through 2003. Researchers interviewed guests face-to-face on chairlifts during three-day data collection visits, and observed guests' clothing and equipment to assess level of sun protection. Additional data regarding time and date, temperature and cloud cover were also recorded.

The authors found that during winter months, average UV levels at the 32 ski areas were moderately low but varied substantially. The strongest predictors of increased UV radiation were clear skies, time close to noon and deviation from the winter solstice. Additionally, altitude and latitude had minor associations with higher UV radiation and temperature had a small positive relationship with UV levels.

Adult sun protection behaviors did not consistently increase with elevated UV levels, and use of sunscreen lip balm, application of sunscreen 30 minutes prior to skiing, wearing a head cover with a brim and wearing gloves were all unrelated to UV levels. However, as UV levels increased, adults were more likely to report wearing sunscreen with a minimum 15 SPF and were more likely to reapply it after two hours. Adults were also more likely to wear sunglasses or goggles as UV levels increased. "The positive relationship of UV to sunscreen use was more characteristic of males than females."

"Skiers and snowboarders evidently monitor outdoor alpine environments in two ways, for sun protection and cold protection," the authors found. "For sun protection, they rely mainly on clear skies as a UV cue. They correctly link clear skies with the need for UV protection and use and reapply more sunscreen because UV is present on clear days." However, adults seem to base protective clothing choices seem on inclement weather rather than elevated UV concerns as they took steps to maintain body warmth on inclement days but took more sun safety precautions on clear-sky days.

"More sophisticated sun safety promotions are needed that teach people both to take precautions and to judge accurately when UV is high" the authors conclude. "In future safety promotions, adults should be encouraged to wear sunscreen on cloudy days because UV is still high and conditions can change rapidly. They need reminders to rely more on season and time of day when judging UV and the need for sun safety."


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Peter A. Andersen; David B. Buller; Barbara J. Walkosz; Michael D. Scott; Julie A. Maloy; Gary R. Cutter; Mark D. Dignan. Environmental Cues to UV Radiation and Personal Sun Protection in Outdoor Winter Recreation. Archives of Dermatology, 2010; 146 (11): 1241-1247 DOI: 10.1001/archdermatol.2010.327

Cite This Page:

JAMA and Archives Journals. "Season, time of day appear to predict higher UV levels, need for sun safety measures among skiers." ScienceDaily. ScienceDaily, 6 December 2010. <www.sciencedaily.com/releases/2010/11/101115174013.htm>.
JAMA and Archives Journals. (2010, December 6). Season, time of day appear to predict higher UV levels, need for sun safety measures among skiers. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2010/11/101115174013.htm
JAMA and Archives Journals. "Season, time of day appear to predict higher UV levels, need for sun safety measures among skiers." ScienceDaily. www.sciencedaily.com/releases/2010/11/101115174013.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins