Featured Research

from universities, journals, and other organizations

Juggling with air pollutant data

Date:
May 15, 2012
Source:
youris.com
Summary:
Models integrating air quality and climate change data will help reaching compliance with new emission targets.

Models integrating air quality and climate change data will help reaching compliance with new emission targets.

Related Articles


New air pollutant emission targets have just been introduced in the EU. Chance of meeting these new targets has recently been tremendously improved by considerable progress on how emissions from different sources are measured and estimated. This work makes a valuable contribution to the recent EU Air Policy review that aims to improve models integrating air quality and climate change data, to help develop more realistic information. Ultimately, these models will help reaching compliance with new emission targets.

Natural and human-made emissions affect air quality. Initiatives to reduce human-made emissions are continuously assessed. But, until now, it has been difficult to separate background emissions from other natural and biological sources. Thanks to results of the EU-funded NatAir project, "emissions estimates were considerably improved in many areas," notes Rainer Friedrich , the project leader and a Professor at the Institute for Energy Economics and the Rational Use of Energy (IER) at Stuttgart University, Germany.

Friedrich adds: "Now our emissions results are being used by many atmospheric modellers." For example, NatAir data was included in the CHIMERE chemistry-transport model, which produces daily forecasts of ozone, aerosols and other pollutants, and makes long-term simulations for emission control scenarios.

In assessing air quality and climate change Stefan Reis, Senior Scientist at the Centre for Ecology and Hydrology in Edinburgh, UK, says that "the quantification of natural and biogenic emissions is highly relevant, because anthropogenic emissions have been subject to more and more stringent controls." It is therefore vital to understand such emissions in order to determine air quality. Reis explains: "with anthropogenic emissions being further reduced, natural/biogenic emissions may dominate the contribution to air pollution for some substances and regions."

Air quality data alone, however, cannot be used directly to predict climate change, Alistair Lewis, Professor of Atmospheric Chemistry in the Department of Chemistry at York University, UK, explains. "Models of biogenic emissions are highly sensitive to climate variables, but in themselves they don't provide a prediction of climate variability," he remarked. Better modelling of biogenic emissions, and subsequently air quality, will not provide a 'crystal ball' for forecasting climate change. Instead, "Atmospheric models are often coupled dynamically to biogenic emission models so that the two can influence each other," Lewis continues. He insists that as these relationships should be considered when developing policies, there is a need for accurate data.

The data requirement is key when imposing new emissions ceilings. For example, "the fact the biogenic emissions can influence levels of particulate matter -- a regulated air pollutant -- does mean that pragmatic lower limits for particulate matter should be set," Lewis remarks. On the 7th May 2012, the EU set a new reduction target on particulate matter emissions of 20% compared to 2005 levels, and similar constraints on many other air pollutants including 40% for nitrogen oxides (NOx) and 30% for volatile organic compounds (VOCs). The availability of new emission estimates can assist in better monitoring these and other targets for the future.


Story Source:

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


Cite This Page:

youris.com. "Juggling with air pollutant data." ScienceDaily. ScienceDaily, 15 May 2012. <www.sciencedaily.com/releases/2012/05/120515104531.htm>.
youris.com. (2012, May 15). Juggling with air pollutant data. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2012/05/120515104531.htm
youris.com. "Juggling with air pollutant data." ScienceDaily. www.sciencedaily.com/releases/2012/05/120515104531.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Maine Storm Surge Sparks Power Explosions

Raw: Maine Storm Surge Sparks Power Explosions

AP (Apr. 21, 2015) — Police dash cam video shows a series of explosions along the beach in Maine as heavy storm surge soaked electrical transformers. (April 21) Video provided by AP
Powered by NewsLook.com
Searching For The Loch Ness Monster? Try Google Street View

Searching For The Loch Ness Monster? Try Google Street View

Newsy (Apr. 21, 2015) — For the anniversary of the notorious "Surgeon&apos;s Photo" of the Loch Ness monster, Google used Street View to let those online join the search. Video provided by Newsy
Powered by NewsLook.com
Going Ape: Sierra Leone Chimpanzees Hail Ebola Retreat

Going Ape: Sierra Leone Chimpanzees Hail Ebola Retreat

AFP (Apr. 21, 2015) — As money runs out at Tacugama Chimpanzee Sanctuary in Sierra Leone, around 85 chimps are facing homelessness. The centre closed when the Ebola epidemic was ravaging the country but now that closure is beginning to look permanent. Video provided by AFP
Powered by NewsLook.com
Solar Plane Completes 6th Leg of Quest to Circumnavigate Globe

Solar Plane Completes 6th Leg of Quest to Circumnavigate Globe

AFP (Apr. 21, 2015) — Solar Impulse 2 lands in the Chinese city of Nanjing, finishing the sixth stage of its landmark 12-leg quest to circumnavigate the globe powered only by the sun. Duration: 00:42 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

 

Plants & Animals

Earth & Climate

Fossils & Ruins

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