Featured Research

from universities, journals, and other organizations

Variable congestion charges may yield more stable air quality and improved health

Date:
December 14, 2012
Source:
University of Gothenburg
Summary:
Higher congestion charges in the morning and in the spring would even out the negative health effects caused by air pollution from cars in large cities.

Higher congestion charges in the morning and in the spring would even out the negative health effects caused by air pollution from cars in large cities.

Related Articles


This is concluded in a study by researchers from the School of Business, Economics and Law, University of Gothenburg, Sweden, and the Faculty of Science at the University of Gothenburg, Sweden.

CO2 emissions from cars are contributing to the global warming due to the so-called greenhouse effect. The purpose of congestion charges in large cities is to reduce both congestion and CO2 emissions from cars.

However, researchers at the University of Gothenburg show that if the congestion charges are set right, they will also contribute to a more consistent air quality by evening out the emissions of nitrogen dioxide, particulate matter and carbon monoxide, implying positive health effects.

The researchers base their conclusion on observations of the levels of nitrogen dioxide, particulate matter and carbon monoxide in Stockholm, London and Santiago. These cities are very different in many ways, but still show the same pattern.

'Our analysis indicates that despite traffic flows being larger in the afternoon, NOx and NO2 pollution in the morning peak is larger than in the peak in the afternoon,' says environmental economist Jessica Coria.

Similar patterns are found in the cities of Bogota, Los Angeles and Beijing, which have also been studied by the researchers.

The purpose of the study is to show at what times the congestion charges should be the highest in order to harmonise with nature's ability to cleanse itself and dilute the emissions from cars. If the congestion charges are allowed to vary with the capacity of nature to handle pollution, then they may reduce not only global warming but also the dangerous health effects of urban air pollutants.

'If people would choose to drive at different times than today, the levels of pollution would be evened out, which in turn would have positive health effects,' says Jessica Coria.

The study is still in progress and the researchers expect to be able to present precise figures regarding charges, times of day and seasonal recommendations in 2013.


Story Source:

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


Cite This Page:

University of Gothenburg. "Variable congestion charges may yield more stable air quality and improved health." ScienceDaily. ScienceDaily, 14 December 2012. <www.sciencedaily.com/releases/2012/12/121214091022.htm>.
University of Gothenburg. (2012, December 14). Variable congestion charges may yield more stable air quality and improved health. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/2012/12/121214091022.htm
University of Gothenburg. "Variable congestion charges may yield more stable air quality and improved health." ScienceDaily. www.sciencedaily.com/releases/2012/12/121214091022.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Whale-Watching Scientists Spot Baby Orca

Whale-Watching Scientists Spot Baby Orca

AP (Feb. 28, 2015) Researchers following endangered killer whales spotted a baby orca off the coast of Washington state, the third birth documented this winter but still leaving the population dangerously low. (Feb. 28) Video provided by AP
Powered by NewsLook.com
Bridge Collapses Due to Flooding in Bolivia

Bridge Collapses Due to Flooding in Bolivia

Reuters - News Video Online (Feb. 28, 2015) Heavy rain and flooding sweep through parts of Bolivia causing damage and leaves more than 2,000 people homeless. Sophia Soo reports. Video provided by Reuters
Powered by NewsLook.com
Death Toll from Afghan Avalanches Tops 200

Death Toll from Afghan Avalanches Tops 200

AFP (Feb. 27, 2015) More than 200 people have been killed in a series of avalanches triggered by heavy snowfall in Afghanistan. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
France, Philippines Call for Agreement on Climate Change

France, Philippines Call for Agreement on Climate Change

Reuters - News Video Online (Feb. 27, 2015) The presidents of France and the Philippines issue a joint appeal for a binding agreement on climate change. Katie Sargent reports. Video provided by Reuters
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