Featured Research

from universities, journals, and other organizations

Improving pollen forecasting for better quality of life for allergy sufferers

Date:
December 18, 2013
Source:
University of Hertfordshire
Summary:
New measurements on the properties and spread of airborne pollen to improve the forecasting of this natural allergen, which affects human health as well as the Earth’s temperature, have been published in a new international study.

Pine pollen corona on 1 May 2011 near Herzberg (Brandenburg, Germany). The pollen of flowering pines forms a halo around the sun, which should be observed only with protective glasses as at a solar eclipse. Typically for pine pollen, the corona is not circular but stretched vertically.
Credit: Manfred Heinrich, Leipzig

New measurements on the properties and spread of airborne pollen to improve the forecasting of this natural allergen, which affects human health as well as Earth's temperature, have been published in a new international study led by Dr Detlef Mueller in the research journal Atmospheric Environment.

Related Articles


Pollen, considered to be one of the main causes of allergies and also a major contributor to pollution, is easily spread through the air and its impact on human health may increase due to climate change. The physical and optical properties of pollen also determine how much sunlight arrives on Earth's surface -- and the amount of sunlight reaching the surface has a major influence on our planet's temperature.

Dr Mueller, now at the University of Hertfordshire's School of Physics, Astronomy and Mathematics and previously at Leibniz Institute of Tropospheric Research (TROPOS) in Germany, said: "Together with colleagues from the Gwangju Institute of Science and Technology (GIST) in Korea, we used a tool called a polarisation lidar to observe particles, including pollen particles, in the atmosphere."

"We found that pollen particles from trees are distributed in the lower part of the atmosphere in cities. This is caused by small air convections, air updrafts and downdrafts -- and good weather conditions, such as high temperatures and low relative humidity, also contribute to this."

Polarisation lidar (Light Detection and Ranging) is a relatively new research technology. Operating in a similar way to radar, it measures the difference in time between sending a laser pulse up into the sky and receiving the back-reflected laser pulse -- allowing the distance between the instrument and the reflecting object (pollution particles in this case) to be computed.

Using these sophisticated laser techniques, the team measured some different optical properties of airborne pollen for the first time -- including the light-extinction coefficient which enables the determination of the optical depth of the atmosphere. This optical depth determines the amount of sunlight falling onto Earth's surface, and hence directly influences Earth's temperature.

Dr Mueller continued: "Dust is known to act as carrier of bacteria and fungi as well as pollen. We observed an increase in the number of people who were hospitalised after large dust outbreaks over South Korea where we were taking the measurements. They suffered from breathing problems, eye inflammations and other strong allergic reactions. And we have noted similar conditions around the world, such as in the Sahel Zone in Africa, where cases of meningitis may have been caused by bacteria carried by dust."


Story Source:

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


Journal Reference:

  1. Young Min Noh, Detlef Mόller, Hanlim Lee, Tae Jin Choi. Influence of biogenic pollen on optical properties of atmospheric aerosols observed by lidar over Gwangju, South Korea. Atmospheric Environment, 2013; 69: 139 DOI: 10.1016/j.atmosenv.2012.12.018

Cite This Page:

University of Hertfordshire. "Improving pollen forecasting for better quality of life for allergy sufferers." ScienceDaily. ScienceDaily, 18 December 2013. <www.sciencedaily.com/releases/2013/12/131218130227.htm>.
University of Hertfordshire. (2013, December 18). Improving pollen forecasting for better quality of life for allergy sufferers. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2013/12/131218130227.htm
University of Hertfordshire. "Improving pollen forecasting for better quality of life for allergy sufferers." ScienceDaily. www.sciencedaily.com/releases/2013/12/131218130227.htm (accessed March 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Solitair Device Aims to Takes Guesswork out of Sun Safety

Solitair Device Aims to Takes Guesswork out of Sun Safety

Reuters - Innovations Video Online (Mar. 31, 2015) — The Solitair device aims to take the confusion out of how much sunlight we should expose our skin to. Small enough to be worn as a tie or hair clip, it monitors the user&apos;s sun exposure by taking into account their skin pigment, location and schedule. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Soda, Salt and Sugar: The Next Generation of Taxes

Soda, Salt and Sugar: The Next Generation of Taxes

Washington Post (Mar. 30, 2015) — Denisa Livingston, a health advocate for the Dinι Community Advocacy Alliance, and the Post&apos;s Abby Phillip discuss efforts around the country to make unhealthy food choices hurt your wallet as much as your waistline. Video provided by Washington Post
Powered by NewsLook.com
UnitedHealth Buys Catamaran

UnitedHealth Buys Catamaran

Reuters - Business Video Online (Mar. 30, 2015) — The $12.8 billion merger will combine the U.S.&apos; third and fourth largest pharmacy benefit managers. Analysts say smaller PBMs could also merge. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
S. Leone in New Anti-Ebola Lockdown

S. Leone in New Anti-Ebola Lockdown

AFP (Mar. 28, 2015) — Sierra Leone imposed a three-day nationwide lockdown Friday for the second time in six months in a bid to prevent a resurgence of the deadly Ebola virus. Duration: 01:17 Video provided by AFP
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