Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Asthma and pollution at home

14.07.2006
The Physical Chemistry of the Atmosphere Laboratory (1) of the University Louis Pasteur will soon publish some very novel results, obtained from asthmatic patients, which question the recommended level of formaldehyde regarding human health in the domestic environment. This air-born gaseous substance is classified as a pollutant at high concentrations.

There are substances in the air which, at high concentrations, can lead to harmful effects on health or the environment. This depends primarily on the dose and the duration of exposure or enclosure. Formaldehyde is a volatile organic compound (2) (VOC) released in small concentrations from many commonly used products : insulating foam, lacquers, glues, varnishes, inks, resins, paper, household products, pesticides, certain types of chipboard and plywood. It is also used in some cosmetics and textiles.

The concentration of formaldehyde in the air was measured in various environments : exterior, intermediate (libraries, shopping centres, train stations) and interior (individual homes). In around 10% of the studied locations, the level of formaldehyde was found to be greater than 50 µg m-3 (3). The World Health Organisation (WHO) estimates that 100 µg m-3 for 30 minutes corresponds to acute exposure, the recommended value of formaldehyde exposure in an interior environment. According to the results obtained by the Physical Chemistry of the Atmosphere Laboratory (ULP/CNRS joint research unit) in collaboration with the Pneumology Department of the Strasbourg University Hospitals (4), the researchers of these two teams suggest a new value of between 50 and 60 µg m-3 for chronic exposure. Effectively, when people suffering from asthma stay at home, they are constantly exposed to low concentrations of formaldehyde over a period of hours and not intermittently for a period of 30 minutes. This study was performed in the Lower-Rhine region on a population of non-smoking, allergic asthmatics not exposed to formaldehyde in their professional life compared to a control population.

The obtained results, supported by the Région Alsace, the French Environment and Energy Management Agency (ADEME) and the French Ministry for Regional Planning and Environment, raises the question on whether manufacturers of construction materials, furniture and maintenance products will take this new recommendation into account. It has also provided new clues in the study of allergic reactions to atmospheric pollutants present in our everyday environment.

Isabel Pellon Zarragoitia | alfa
Further information:
http://www-ulp.u-strasbg.fr/espace-presse/index.php

More articles from Health and Medicine:

nachricht NTU scientists build new ultrasound device using 3-D printing technology
07.12.2016 | Nanyang Technological University

nachricht How to turn white fat brown
07.12.2016 | University of Pennsylvania School of Medicine

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

NTU scientists build new ultrasound device using 3-D printing technology

07.12.2016 | Health and Medicine

The balancing act: An enzyme that links endocytosis to membrane recycling

07.12.2016 | Life Sciences

How to turn white fat brown

07.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>