Featured Research

from universities, journals, and other organizations

No link between mold growth and development of asthma and allergy, Scandinavian study finds

Date:
November 26, 2010
Source:
SINTEF
Summary:
A recent study in Norway shows that there is no link between mold-spore concentrations in the indoor air and development of asthma and allergy among children.

A recent Scandinavian study shows that there is no link between mold-spore concentrations in the indoor air and development of asthma and allergy among children.

Related Articles


Many studies around the world have concluded that moisture-related problems in buildings increase the risk of health effects such as respiratory symptoms, asthma and allergy in both adults and children. However, there is only limited knowledge on which agents in indoor air or dust that cause the reported negative health effects. Biological pollutants such as molds has been suggested.

In the recent PhD study, carried out at NTNU (Norwegian University of Science and Technology), researcher Jonas Holme at SINTEF Building and Infrastructure has suggested different approaches on how to increase the knowledge of mold growth in buildings, and possible links between mold growth and health effects in humans.

"The perhaps most surprising discovery was that there was no link between mold-spore concentrations (CFU) in the investigated children's bedrooms and asthma or allergy among the children. These results demonstrate that there is no reason to carry out one-time air sampling of mold CFU in indoor air of homes in order to identify risk factors for asthma/allergy in children living in Scandinavian countries," Holme says.

Other agents possible cause

The results indicate that there could be agents other than mold spores that cause the health effects in damp buildings. In another publication based on the same study, a link between phthalates and allergic reactions among children was found.

"We should now concentrate more on the links between chemical exposure in the indoor environment and development of asthma and allergy in order to ensure the proper, corrective measures to reduce indoor environmental problems," says Holme, referring to his study published in the journal Indoor Air.

Natural ventilation causes moisture

A link is also found between houses with one or more moisture indicators and types of ventilation, types of foundation and building period. There were more cases of registered mold growth in houses with no ventilation or natural ventilation compared to houses with mechanical ventilation, and in houses with basement cellars compared to those with slab on ground. There was also greater registered mold growth in older houses compared to newer ones.

"These are not particularly surprising observations, rather they support the fact that proper ventilation reduces the risk of moisture damage or defects. In older houses it might be useful to carry out an upgrading or rehabilitation of the foundations and external thermal insulation," Holme says.


Story Source:

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


Journal Reference:

  1. J. Holme, L. Hδgerhed-Engman, J. Mattsson, J. Sundell, C.-G. Bornehag. Culturable mold in indoor air and its association with moisture-related problems and asthma and allergy among Swedish children. Indoor Air, 2010; 20 (4): 329 DOI: 10.1111/j.1600-0668.2010.00658.x

Cite This Page:

SINTEF. "No link between mold growth and development of asthma and allergy, Scandinavian study finds." ScienceDaily. ScienceDaily, 26 November 2010. <www.sciencedaily.com/releases/2010/11/101125082325.htm>.
SINTEF. (2010, November 26). No link between mold growth and development of asthma and allergy, Scandinavian study finds. ScienceDaily. Retrieved January 28, 2015 from www.sciencedaily.com/releases/2010/11/101125082325.htm
SINTEF. "No link between mold growth and development of asthma and allergy, Scandinavian study finds." ScienceDaily. www.sciencedaily.com/releases/2010/11/101125082325.htm (accessed January 28, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Wednesday, January 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Malnutrition on the Rise as Violence Flares in C. Africa

Malnutrition on the Rise as Violence Flares in C. Africa

AFP (Jan. 28, 2015) — Violence can flare up at any moment in Bambari with only a bridge separating Muslims and Christians. Malnutrition is on the rise and lack of water means simple cooking fires threaten to destroy makeshift camps where people are living. Duration: 00:40 Video provided by AFP
Powered by NewsLook.com
Poultry Culled in Taiwan to Thwart Bird Flu

Poultry Culled in Taiwan to Thwart Bird Flu

Reuters - News Video Online (Jan. 28, 2015) — Taiwan culls over a million poultry in efforts to halt various strains of avian flu. Julie Noce reports. Video provided by Reuters
Powered by NewsLook.com
Media Criticizing Parents For Not Vaccinating Children

Media Criticizing Parents For Not Vaccinating Children

Newsy (Jan. 28, 2015) — As the Disneyland measles outbreak continues to spread, the media says parents who choose not to vaccinate their children are part of the cause. Video provided by Newsy
Powered by NewsLook.com
Shark Bite Victim Making Amazing Recovery

Shark Bite Victim Making Amazing Recovery

AP (Jan. 27, 2015) — A Texas woman who lost more than five pounds of flesh to a shark in the Bahamas earlier this month could be released from a Florida hospital soon. Experts believe she was bitten by a bull shark while snorkeling. (Jan. 27) 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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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