Navigation Links
NASA satellite measures pollution from east Asia to North America
Date:3/17/2008

d smoke from dust transported to the western regions of North America from East Asia. Looking at four years of data from 2002 to 2005 we estimated the amount of pollution arriving in North America to be equivalent to about 15 percent of local emissions of the U.S. and Canada, Yu said. This is a significant percentage at a time when the U.S. is trying to decrease pollution emissions to boost overall air quality. This means that any reduction in our emissions may be offset by the pollution aerosols coming from East Asia and other regions.

Yu and his colleagues measured the trans-Pacific flow of pollution in teragrams, a unit of measurement of the mass of pollution aerosol (1 teragram is about 2.2 billion pounds). Satellite data confirmed 18 teragrams -- almost 40 billion pounds -- of pollution aerosol was exported to the northwestern Pacific Ocean and 4.5 teragrams nearly 10 billion pounds -- reached North America annually from East Asia over the study period.

Yu points out, however, that the matter of pollution transport is a global one. Our study focused on East Asian pollution transport, but pollution also flows from Europe, North America, the broader Asian region and elsewhere, across bodies of water and land, to neighboring areas and beyond, he said. So we should not simply blame East Asia for this amount of pollution flowing into North America. In fact, in a model study published last November in the Journal of Atmospheric Chemistry and Physics, Mian Chin, also a co-author of this study and an atmospheric scientist at NASA Goddard, suggests that European pollution also makes a significant contribution to the pollution inflow to North America.

Satellite instruments give us the ability to capture more accurate measurements, on a nearly daily basis across a broader geographic region and across a longer time frame so that the overall result is a better estimate than any other measurement method weve had in the past, said study co-author L
'/>"/>

Contact: Lynn Chandler
lynn.chandler-1@nasa.gov
301-286-2806
NASA/Goddard Space Flight Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Satellites witness lowest Arctic ice coverage in history
2. UNCCD recognizes importance of satellites for combating desertification
3. Satellites help ensure efficient use of pesticides
4. Telemedicine: Health alert via satellite
5. ASU researchers use NASA satellites to improve pollution modeling
6. New radar satellite technique sheds light on ocean current dynamics
7. New microsensor measures volatile organic compounds in water and air on-site
8. US government delays nanotechnology safety measures
9. e-Science points to pollution solutions
10. Groundbreaking Canada-US study proves link between emissions and mercury pollution in fish
11. Groundbreaking Canada-US study proves link between emissions and mercury pollution in fish
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2015)... , April 13, 2015  higi, a leading ... ways to more fully engage with their communities around ... industry-leading, privacy protected and secure API.  ... enables the most accessible, affordable, and convenient vehicle to ... The API will allow ...
(Date:4/2/2015)... Germany , April 2, 2015 ... fingerprint tests DERMALOG by far outperforms the strongest ... always maintaining high accuracy, the system is capable ... Hence, the speed proves up to be ten ... faster than its runner-up performance.      ...
(Date:4/1/2015)... Medisafe ™, the leading global medication management platform with ... Android smartphones and tablets, announces today that ... allow patients to track and correlate their adherence directly ... be able to visualize in real-time how taking medication ... glucose levels and blood pressure. "Patients need ...
Breaking Biology News(10 mins):higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 2higi Launches Seamless Access to HIPAA-Compliant Health Outcomes and Activity Data 3DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3Medisafe Announces Launch of Biometric Integration, Enabling Patients to Stay Adherent to Their Meds and See Tangible Health Results 2
... that lives in rushing streams and waterfalls in east-central China ... flowing water by communicating ultrasonically, scientists reported March 16 in ... ultrasounds are made possible by the presence of an ear ... points out an elegant and novel solution to the problem ...
... the evolution of Earth's first animals will have to ... conditions, according to a new study by Indiana University ... Proceedings of the National Academy of Sciences. , ... the last 12 years, mainly by paleontologists working in ...
... of an event before it even happens. A team at UCL ... us before we have seen what we will remember. , ... indicate that the brain can actually get into the 'right frame ... our best if the brain is active not only at the ...
Cached Biology News:Frog’s ear canal may provide insights for understanding human hearing loss 2Frog’s ear canal may provide insights for understanding human hearing loss 3Embryos tell story of Earth's earliest animals 2Embryos tell story of Earth's earliest animals 3You will remember this 2
(Date:4/16/2015)... and OSAKA, Japan , ... Research Application (CiRA) of Kyoto University and Takeda ... will work together to develop clinical applications of ... heart failure, diabetes mellitus, neurological disorders and cancer ... Applications" (T-CiRA) is designed to expedite multiple research ...
(Date:4/16/2015)... Francisco, CA (PRWEB) April 16, 2015 ... scheduled to report first quarter results on Thursday, April ... announcement, Cytokinetics’ senior management will host a conference call ... financial results and the company’s outlook for the future. ... can be accessed from the homepage and in the ...
(Date:4/16/2015)... April 16, 2015 Proove Biosciences ... Buzz of BIO Contest for the 2015 BIO ... the 2015 BIO International Convention will take place June ... During the Buzz of BIO contest, industry leaders will ... present at the conference. The community voting period began ...
(Date:4/16/2015)... (PRWEB) April 16, 2015 Regis Technologies ... American Association for Cancer Research (AACR) annual meeting. Regis ... Convention Center, starting Saturday, April 18, in Philadelphia and ... claim to title of the oldest and largest organization ... fellowships and grants, and partners with survivors to promote ...
Breaking Biology Technology:CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 3Cytokinetics to Announce First Quarter Results on April 30, 2015 2Cytokinetics to Announce First Quarter Results on April 30, 2015 3Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3Regis Technologies Joins American Association for Cancer Research Annual Meeting 2
... Kavli Institute of Nanoscience and the Foundation for Fundamental ... spin of a single electron merely by using electric ... realization of the building blocks of a (future) super-fast ... Science Express on Thursday 1 November. , Controlling the ...
... Anadys Pharmaceuticals,Inc. (Nasdaq: ANDS ), a biopharmaceutical ... medicines in the areas of hepatitis C and,oncology, ... quarter ended,September 30, 2007 and operational highlights. ... transition for Anadys,",said Steve Worland, Ph.D., President and ...
... Symmetry Medical Inc.,(NYSE: SMA ), a leading independent ... other medical markets, today announced it,will provide a third ... Company will host an accompanying conference call at 8:00 ... Web cast of the conference call will be available ...
Cached Biology Technology:Delft University of Technology rotates electron spin with electric field 2Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 2Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 3Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 4Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 5Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 6Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 7Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 8Anadys Pharmaceuticals Reports Third Quarter 2007 Financial Results and Operational Highlights 9Symmetry Medical to Provide Third Quarter 2007 General Business Update on November 7, 2007 2
... pleased to offer the ATTO-TAG series ... of primary amines. Developed by Novotny ... ATTO-TAG reagents are similar to the ... and anthracene-2,3-dicarboxaldehyde, all of which are ...
Anti-SDF-1β/PBSF affinity isolated antibody lyophilized powder Lyophilized from a 0.2 μm filtered solution in phosphate buffered saline recombinant human SDF-1β/PBSF expressed in E....
... freezers , Ultima II Series ... storage, Ultima II represents the finest, most ... purpose and blood bank configurations, each Ultima ... control system with built-in voltage boost and ...
... Software is the ultimate tool for ... handling. There are two editions of ... for scientists working in life science ... offering features needed for compliance with ...
Biology Products: