Navigation Links
Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

gion called the Sahel, and in the mid-latitudes of the Northern Hemisphere during summer. When the rains come to the Sahel after a six-month dry season, dormant soil bacteria reawaken and begin processing nitrogen. The satellite then detects a sudden pulse of nitrogen oxides, Jaeglé said. Similarly, emissions in the mid-latitudes of the Northern Hemisphere spike during the growing season, spurred by warmer temperatures after a cold winter, but also perhaps magnified by fertilizer use.

"The soil emissions were much larger than we expected," she said. "The biggest areas were the dry topical regions like the Sahel, and in the mid-latitude regions where there is a lot of agriculture."

During summer in North America, Europe and Asia, nitrogen oxides emitted from soil can reach half the emissions from fossil fuel combustion.

"And this is at a time when there are already problems with air pollution," Jaeglé said.

Nitrogen oxides comprise a group of highly reactive gases containing nitrogen and oxygen in varying amounts. Besides producing ozone smog, they help form the dirty brown clouds that often hang over major cities, they contribute to acid rain and they play a role in global climate change.

In addition to equatorial Africa, hot spots for soil emissions include the central plains of the United States; southwestern Europe, primarily the Iberian Peninsula; much of India; and the northern plains of Asia, she said. All of those areas are highly agricultural.

The new research was published in May in Faraday Discussions, a journal of England's Royal Society of Chemistry. Co-authors are Linda Steinberger of the UW; Randall Martin of Dalhousie University in Halifax, Nova Scotia; and Kelly Chance of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. The work was funded by the National Aeronautics and Space Administration's New Investigator Program in Earth Science.

Jaeglé noted that agricultural activity i
'"/>

Source:UWNews


Page: 1 2 3

Related biology news :

1. Novel Asthma Study Shows Multiple Genetic Input Required; Single-gene Solution Shot Down
2. Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs
3. UCLA Study Shows One-Third of Drug Ads in Medical Journals Do Not Contain References Supporting Medical Claims
4. Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible
5. Study Links Ebola Outbreaks To Animal Carcasses
6. Breakthrough Microarray-based Technology for the Study of Cancer
7. NYU Study Reveals How Brains Immune System Fights Viral Encephalitis
8. Study finds more than one-third of human genome regulated by RNA
9. Leukemia Drug Breakthrough Study In New England Journal Of Medicine
10. Study identifies predictors of HIV drug resistance in patients beginning triple therapy
11. New Study from Affymetrix Laboratories Points to Changing View of How Genome Works
Post Your Comments:
(Date:4/27/2015)... -- For more than four decades, AUVSI,s Unmanned Systems ... worldwide event for the unmanned land, sea, and air ... any local, national, or trade news organization interested in ... current applications of unmanned technologies. The conference will explore ... industry, and how it will soon impact the lives ...
(Date:4/21/2015)... -- High crime rate, increasing government ... control systems market in Saudi Arabia ... report by TechSci Research " Saudi Arabia Access Control Systems Market ... market in Saudi Arabia is ... systems market in the Kingdom is growing at a ...
(Date:4/17/2015)... , April 17, 2015 ... concerns, and technological advancement to drive biometric systems ... until 2020   According to a ... Biometric Systems Market Forecast &  Opportunities, 2020 ", biometric systems market in ... to register growth at CAGR of over 22% ...
Breaking Biology News(10 mins):UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 2UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 3UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 4UNMANNED SYSTEMS 2015: Largest International Conference and Trade Show for the Drone and Unmanned Technology Industry 5Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3
... Mich. Michigan State University veterinarians are taking part ... cancers in dogs, research that could offer new insight ... the human form of the disease. The Canine ... clinicians, nonprofit institutions, universities and industry members will ...
... the Philippines, which aims to develop a new, higher-yielding rice plant ... being led by an academic at the University of Sheffield. ... a dollar a day and nearly one billion live in hunger. ... increase by about 50 per cent and water scarcity will grow. ...
... , NEW YORK, NY June 21, 2010 NYU ... award from the Empire State Stem Cell Boards New York ... be used to expand the NYU RNAi Core Facility and ... School of Medicine. The purpose of the collaboration is ...
Cached Biology News:From bark to bedside: Study looks at canine cancer genes, human health impact 2Rice yields researched to tackle food security issues 2Rice yields researched to tackle food security issues 3NYU Langone Medical Center receives $5.4 million NYSTEM grant for stem cell research 2
(Date:5/29/2015)... 29, 2015 Results from a Phase ... and its ability to reduce the size of melanoma ... published in the Journal of Clinical Oncology. , ... IIIB, IIIC and IV melanoma, a potentially fatal form ... was to evaluate the safety and efficacy of the ...
(Date:5/28/2015)... DUBLIN , May 28, 2015 /PRNewswire/ ... http://www.researchandmarkets.com/research/7k46bt/therapeutic_drug ) has announced the addition of ... Monitoring - Technologies, Markets, and Companies" ... http://photos.prnewswire.com/prnh/20130307/600769) , This report deals ... specialty, aimed at improving patient care by ...
(Date:5/28/2015)... Research and Markets( http://www.researchandmarkets.com/research/l9dqwt/animal_genetics ) has announced the addition ... Testing services - Global Forecast to 2020" report ... market is estimated to be worth around $2.5 billion ... during the forecast period of 2014 to 2020 ... protein consumption, increasing adoption of advanced genetic technologies for ...
(Date:5/28/2015)... , May 28, 2015 Celsion Corporation (the ... has received commitments from two institutional healthcare investors to ... Company,s common stock in an at-the-market registered direct offering ... common stock. The Company entered into a ... the Company agreed to sell an aggregate of 3,000,000 ...
Breaking Biology Technology:Study Published in Journal of Clinical Oncology Reports Talimogene Laherparepvec Improvesdurable Responses in Patients with Advanced Melanoma 2Global Therapeutic Drug Monitoring Market 2015-2024 2Global Animal Genetics (Canine, Equine, Poultry, Porcine, Bovine, and Genetic Material) Market 2015 - Global Forecast to 2020 2Celsion Corporation Announces $8 Million At-The-Market Registered Direct Offering 2Celsion Corporation Announces $8 Million At-The-Market Registered Direct Offering 3
... In" Program to Launch at the Annual Oncology Nursing Society ... AMGN ) and ONS Edge , a subsidiary ... will partner alongside celebrity make-up artist and cancer survivor Jan ... Cancer From the Outside In . The initiative is aimed ...
... Tigris Pharmaceuticals, Inc., a privately held drug development ... novel molecule, AFP-464, during the recent AACR 100th Annual ... significant advancement in the treatment of Triple Negative Breast ... breast cancer," stated Edmundo Muniz, M.D., Ph.D., President and ...
... convertible debentures of Victhom , to be completed ... /PRNewswire-FirstCall/ - Victhom Human Bionics Inc. ("Victhom", TSX: ... announced today the execution on April 29, 2009 ... venture to develop and commercialize products currently being ...
Cached Biology Technology:Photos: Amgen and ONSEdge Partner With Cancer Survivor Jan Ping for New Campaign 2Photos: Amgen and ONSEdge Partner With Cancer Survivor Jan Ping for New Campaign 3Photos: Amgen and ONSEdge Partner With Cancer Survivor Jan Ping for New Campaign 4Photos: Amgen and ONSEdge Partner With Cancer Survivor Jan Ping for New Campaign 5Photos: Amgen and ONSEdge Partner With Cancer Survivor Jan Ping for New Campaign 6Tigris Pharmaceuticals Presents Results of Breast Cancer Research at AACR Annual Meeting 2Tigris Pharmaceuticals Presents Results of Breast Cancer Research at AACR Annual Meeting 3Tigris Pharmaceuticals Presents Results of Breast Cancer Research at AACR Annual Meeting 4Victhom and Otto Bock sign partnership agreement to establish joint venture for Neurobionix activities 2Victhom and Otto Bock sign partnership agreement to establish joint venture for Neurobionix activities 3Victhom and Otto Bock sign partnership agreement to establish joint venture for Neurobionix activities 4Victhom and Otto Bock sign partnership agreement to establish joint venture for Neurobionix activities 5