Navigation Links
Study links springtime ozone increases above western North America to emissions from abroad
Date:1/20/2010

Springtime ozone levels above western North America are rising primarily due to air flowing eastward from the Pacific Ocean, a trend that is largest when the air originates in Asia.

Such increases in ozone could make it more difficult for the United States to meet Clean Air Act standards for ozone pollution at ground level, according to a new international study. Published online today in the journal Nature, the study analyzed large sets of ozone data captured since 1984.

"In springtime, pollution from across the hemisphere, not nearby sources, contributes to the ozone increases above western North America," said lead author Owen R. Cooper, of the NOAA-funded Cooperative Institute for Research in Environmental Sciences at the University of Colorado at Boulder. "When air is transported from a broad region of south and east Asia, the trend is largest."

The study focused on springtime ozone in a slice of the atmosphere from two to five miles above the surface of western North America, far below the protective ozone layer but above ozone-related, ground-level smog that is harmful to human health and crops. Ozone in this intermediate region constitutes the northern hemisphere background, or baseline, level of ozone in the lower atmosphere. The study was the first to pull together and analyze nearly 100,000 ozone observations gathered in separate studies by instruments on aircraft, balloons and other platforms.

Combustion of fossil fuels releases pollutants like nitrogen oxides and volatile organic compounds, or VOCs, which react in the presence of sunlight to form ozone. North American emissions contribute to global ozone levels, but the researchers did not find any evidence that these local emissions are driving the increasing trend in ozone above western North America.

Cooper and colleagues from NOAA's Earth System Research Laboratory in Boulder and eight other research institutes used historical data of g
'/>"/>

Contact: Owen Cooper
owen.r.cooper@noaa.gov
303-497-3599
University of Colorado at Boulder
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. A study by the MUHC and McGill University opens a new door to understanding cancer
3. Study begins to reveal clues to the cause and progression of sepsis
4. Clones on task serve greater good, evolutionary study shows
5. New study warns limited carbon market puts 20 percent of tropical forest at risk
6. New study examines how rearing environment can alter navigation
7. Study links cat disease to flame retardants in furniture and to pet food
8. New continent and species discovered in Atlantic study
9. Study shows link between alcohol consumption and hiv disease progression
10. Feeling hot, hot, hot: New study suggests ways to control fever-induced seizures
11. Study finds environmental tests help predict hospital-acquired Legionnaires disease risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study links springtime ozone increases above western North America to emissions from abroad
(Date:11/7/2014)... SPRINGS, Florida , November 6, 2014 ... secure authentication for better mobile security revolutionizing online transactions.  Companies ... ), Alibaba Holdings Ltd. (NYSE: BABA ), Google ... MSFT ), eBay Inc. (NASDAQ: EBAY ) ... NXTD and NXTDW), a biometric authentication company ...
(Date:11/6/2014)... Medicine, Inc, a Baltimore-based bioinformatics company focused on ... a research collaboration with the international leader in ... CSBR). , "There are many companies utilizing advances ... TumorGraft technology is unique in a way that ... vast amounts of valuable data. Our bioinformatic analysis ...
(Date:11/4/2014)... – University of Utah engineers developed the first room-temperature ... produce electricity without needing to ignite the fuel. These ... electronics, off-grid power and sensors. , A study of ... Chemical Society journal ACS Catalysis . , Fuel ... between a fuel and an oxygen-rich source such as ...
Breaking Biology News(10 mins):Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2Jet-fueled electricity at room temperature 2
... mineral supplements can enhance mental energy and well-being not ... anxiety and depression, according to a July 15 panel ... Annual Meeting & Food Expo held at McCormick Place. ... medicine at the University of Calgary, Alberta, Canada, said ...
... USA The Geological Society of America will recognize ... at its 2013 Annual Meeting & Exposition in Denver, ... Arthur L. Day Medal, and the Young Scientist Award ... of the University of Hawaii, Richard W. Carlson of ...
... amino and fatty acids to the diets of youth with ... insulin for up to two years after diagnosis, said researchers ... University of North Carolina at Chapel Hill. The ... risk of diabetes complications by continuing to produce some of ...
Cached Biology News:2013 medals and awards of the Geological Society of America 2Diet additions may help youth with type 1 diabetes keep producing own insulin 2
(Date:11/24/2014)... 2014 Deep Research Report on ... professional and in-depth research report on the Adipic ... its definition, classification, application, and industry chain structure ... the international market analysis, including China’s domestic market ... Europe, Asia, China, Japan etc. regions) industry analysis ...
(Date:11/24/2014)... 24, 2014 Senior Vice President, ... dynamic leadership skills, business acumen Elsevier ... information products and services, congratulates Diane Bartoli , ... and Workflow, Elsevier Clinical Solutions, for being recognized in ... Awards issue of Profiles in Diversity Journal ...
(Date:11/22/2014)... During his lifetime Richard L. Sharp was a ... with great people and take risks to achieve success. ... at his extraordinarily courageous attitude when taking on challenges. ... with his death impending—that’s how he continued looking for ... take his life. , Carrying on Sharp’s relentless dream ...
(Date:11/22/2014)... 21, 2014 RURO, Inc., a ... has released Limfinity® version 5.1.4. , RURO’s deployment ... Limfinity® than ever in RURO’s 8 year history. ... framework enhancement. Limfinity® version 5.1.4 is the perfect ... beyond bug fixes! , Limfinity® 5.1.4 release highlights ...
Breaking Biology Technology:Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 2Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 3Elsevier Clinical Solutions' Diane Bartoli Featured In Profiles in Diversity Journal's 13th Annual Women Worth Watching Issue 2Elsevier Clinical Solutions' Diane Bartoli Featured In Profiles in Diversity Journal's 13th Annual Women Worth Watching Issue 3Sherry Sharp, Wife of CarMax Founder, Richard Sharp, Accepts Seat on Board of Cure Alzheimer’s Fund 2Sherry Sharp, Wife of CarMax Founder, Richard Sharp, Accepts Seat on Board of Cure Alzheimer’s Fund 3RURO Announces Limfinity® version 5.1.4 2
... Mylan Inc. (NYSE: MYL ),announced today ... wholly,owned subsidiary of Forest Laboratories, Inc. (NYSE: ... commercialize, develop and distribute the,novel beta blocker Bystolic(TM) ... for the treatment of hypertension. The companies have,agreed ...
... NexGen Biofuels Ltd.,(f/k/a Healthcare Technologies Ltd.) (the ... Company received a letter from the Nasdaq Listing,Qualification ... determined to,delist the Company,s ordinary shares from The ... of the Nasdaq Listing Qualifications,Department that the Company ...
... Cauley Bowman Carney &,Williams, PLLC announces an investigation ... CGPI ). On February 26, 2008,CollaGenex announced ... agreement,with an affiliate of Galderma Pharma S.A. Under ... $16.60 per share in cash for each,share owned. ...
Cached Biology Technology:Mylan Announces Amendment to Bystolic(TM) (Nebivolol) Agreement 2Mylan Announces Amendment to Bystolic(TM) (Nebivolol) Agreement 3
Spectrolyse (pL) PAI kit is a two-stage indirect enzymatic assay for the quantitative determination of Plasminogen Activator Inhibitor (PAI-1) activity in plasma. Sample Type: plasma...
Rabbit anti-CRSP1 (TRAP220), Polyclonal Antibody, Unconjugated Applications: Immunohistochemistry - 1:100 - 1:500...
... White lyophilized solid. PROTECT FROM ... reversible inhibitor of γ-secretase. Equipotently inhibits the ... = 2.6 μM) and Aβ x-42 ... in HEK293 cells stably transfected with the ...
...
Biology Products: