Featured Research

from universities, journals, and other organizations

UCI Study Uncovers Unexpectedly High Air Pollutant Levels In Southwest States

Date:
October 7, 2003
Source:
University Of California - Irvine
Summary:
UCI atmospheric scientists have found that greenhouse gases released from oil and natural gas exploration and processing in Oklahoma, Texas and Kansas create regional air pollution levels similar to those found in large urban centers elsewhere in the United States.

Irvine, Calif. -- UCI atmospheric scientists have found that greenhouse gases released from oil and natural gas exploration and processing in Oklahoma, Texas and Kansas create regional air pollution levels similar to those found in large urban centers elsewhere in the United States.

Related Articles


F. Sherwood Rowland, Donald R. Blake and colleagues sampled ground-level hydrocarbon gases through a 1,000 mile-wide swath of the central and southwest regions of the United States in late 2001 and early 2002. They recorded levels of various hydrocarbons -- including methane, ethane, propane and butane -- in and around Oklahoma City that equaled or surpassed those in such high-smog cities as Los Angeles, Houston, New York and Chicago.

These hydrocarbons participate in the formation of ground-level ozone, a major component in smog that contributes to lung ailments in children. Study results appear in the Online Early Edition of the Proceedings of the National Academy of Science the week of Oct. 6, 2003. (www.pnas.org)

"Based on these findings, it appears that the U.S. is emitting four to six million tons more methane per year than previously estimated," said Rowland, a Nobel laureate in chemistry and one of the world's leading experts on global air pollution. "In fact, our study suggests that total hydrocarbon emissions are higher than stated in current estimates. This means the American air pollution problem has still another new, significant aspect."

In their study, Rowland and Blake recorded high pollution levels in Texas, Oklahoma and southwestern Kansas. These regional levels correlated with the locations of the oil and natural gas refineries concentrated in these areas. The UCI researchers then compared atmospheric hydrocarbon levels in Oklahoma City and a dozen other U.S. cities. They discovered that the air in and around the Oklahoma capital contained more than double the amounts of ethane, propane and butane than the air in more congested urban areas. They also found elevated amounts of methane -- a gas that in the past half century is regarded second only to carbon dioxide as a root cause of the greenhouse effect.

In addition, their samples revealed ample amounts of alkyl nitrates. These chemicals are byproducts of the atmospheric reactions involving hydrocarbons that lead to the formation of ozone, a major component of urban smog. The alkyl nitrates are reliable markers of ozone formation and were found at levels higher than in most urban environments.

"Our group found these higher hydrocarbon levels over the area incorporating the largest natural gas and oil reserves in the continental U.S.," Rowland said. "Similar studies of natural gas and oil regions in other countries would help better monitor global emission of greenhouse gases such as methane which contribute to air pollution and overall climate change."

In addition to this Oklahoma City study, Rowland and Blake have studied the air content in high-smog cities such as Mexico City; Karachi, Pakistan; Santiago, Chile; and other areas around the world to help local governments improve their air quality.

UCI chemists Aaron S. Katzenstein, Lambert A. Doezema and Isobel J. Simpson assisted Rowland and Blake on this study. It was funded by the National Institute for Global Environmental Change, a division of the U.S. Department of Energy.

The University of California, Irvine is a top-ranked public university dedicated to the principles of research, scholarship and community. Founded in 1965, UCI is among the fastest-growing University of California campuses, with more than 24,000 undergraduate and graduate students and about 1,300 faculty members. The third-largest employer in dynamic Orange County, UCI contributes an annual economic impact of $3 billion.

A complete archive of press releases is available on the World Wide Web at http://www.today.uci.edu.


Story Source:

The above story is based on materials provided by University Of California - Irvine. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - Irvine. "UCI Study Uncovers Unexpectedly High Air Pollutant Levels In Southwest States." ScienceDaily. ScienceDaily, 7 October 2003. <www.sciencedaily.com/releases/2003/10/031007054719.htm>.
University Of California - Irvine. (2003, October 7). UCI Study Uncovers Unexpectedly High Air Pollutant Levels In Southwest States. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2003/10/031007054719.htm
University Of California - Irvine. "UCI Study Uncovers Unexpectedly High Air Pollutant Levels In Southwest States." ScienceDaily. www.sciencedaily.com/releases/2003/10/031007054719.htm (accessed October 25, 2014).

Share This



More Earth & Climate News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

EU Gets Climate Deal, UK PM Gets Knock

EU Gets Climate Deal, UK PM Gets Knock

Reuters - Business Video Online (Oct. 24, 2014) EU leaders achieve a show of unity by striking a compromise deal on carbon emissions. But David Cameron's bid to push back EU budget contributions gets a slap in the face as the European Commission demands an extra 2bn euros. David Pollard reports. Video provided by Reuters
Powered by NewsLook.com
Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Raw: Tornado Rips Roofs in Washington State

Raw: Tornado Rips Roofs in Washington State

AP (Oct. 24, 2014) A rare tornado ripped roofs off buildings, uprooted trees and shattered windows Thursday afternoon in the southwest Washington city of Longview, but there were no reports of injuries. (Oct. 24) Video provided by AP
Powered by NewsLook.com
Fast-Moving Lava Headed For Town On Hawaii's Big Island

Fast-Moving Lava Headed For Town On Hawaii's Big Island

Newsy (Oct. 24, 2014) Lava from the Kilauea volcano on Hawaii's Big Island has accelerated as it travels toward a town called Pahoa. Video provided by Newsy
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