Navigation Links
Local sources major cause of US near-ground aerosol pollution
Date:11/16/2007

A new NASA study estimates that most ground-level particulate pollution in the United States stems from regional sources in North America and only a small amount is brought to the country from other parts of the world.

Researchers using an innovative global aerosol tracking model have for the first time produced a global estimate of sources and movements of aerosols near the ground where they can affect human health and run afoul of environmental regulations. Previously, researchers studying aerosols moving between continents focused primarily on tracking a single type of aerosol, such as dust or black carbon, or measuring their quantities throughout the atmosphere. This left gaps in understanding where ground-level particulate pollution comes from.

"This is the first study to comprehensively consider the origin, composition and type of fine particles over the United States and connect them to both domestic and foreign sources." said Mian Chin, an atmospheric scientist at NASAs Goddard Space Flight Center, Greenbelt, Md., and lead author of the study.

Aerosols are airborne particles that arise from both human sources such as burning fossil fuels, and natural sources such as fires, dust and volcanoes. They are also a major source of near-ground pollution. Since 1970, particulate matter has been regulated in the United State s by the Clean Air Act. A more recent concern has been aerosols that arrive here from distant shores carried by the wind.

Chin and colleagues set out to investigate how much and what type of aerosols made the intercontinental journey in 2001. The team employed the help of a computer model using known air chemistry and wind patterns to trace a region's aerosols everything from fossil fuel and biofuel combustion, biomass burning, and volcanic sources, desert dust and sea salt back to their sources.

"Using the model, we followed the path of aerosols to find out how much is local and how much is fr
'/>"/>

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

Page: 1 2

Related biology news :

1. University and state agencies to forecast local health effects of climate change
2. Majority of Americans want local action on global warming, says poll
3. The race for biofuels driving alternative sources of biomass
4. Space technology put into service for global water resources observations
5. deCODE discovers cause of major subtype of glaucoma
6. Bleeding, not inflammation, is major cause of early lung infection death
7. Mustafa alAbsi Ph.D. and national team awarded major NIH grant
8. Leading experts cite poor health and nutrition as major barrier to education in developing world
9. How schizophrenia develops: Major clues discovered
10. Major genetic breakthrough for ankylosing spondylitis brings treatment hope
11. NIH selects LIAI for major study on allergy molecular causes and possible treatments
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/21/2014)... A team of researchers at Louisiana ... for using affordable, consumer-grade 3D printers and ... can contain antibacterial and chemotherapeutic compounds for ... of doctoral students and research faculty from ... programs collaborated to create filament extruders that ...
(Date:8/20/2014)... Fox, a John and Rebecca Moores Professor of Biology and ... fellow in the International Society for the Study of the ... four members two from the U.S., one from France ... Fellows are elected every three years, and 36 have been ... than 20 countries, the ISSOL includes researchers from disciplines as ...
(Date:8/20/2014)... , Aug. 20, 2014 /CNW/ -  Issue ... and can quickly become life threatening for some children.    ... as 1.2 million Canadians have food allergies and this number ... cent of children are estimated to have food allergies.  ... mild skin irritations and hives to breathing difficulties and loss ...
Breaking Biology News(10 mins):Louisiana Tech University researchers use 3D printers to create custom medical implants 2Louisiana Tech University researchers use 3D printers to create custom medical implants 3UH professor named fellow by International Astrobiology Society 2Information Update - Allergens and food safety at school - What's in your child's lunch? 2Information Update - Allergens and food safety at school - What's in your child's lunch? 3
... at Albert Einstein College of Medicine of Yeshiva University ... from the Bill & Melinda Gates Foundation for their ... are Arturo Casadevall , M.D., Ph.D., who is working to ... , Ph.D., and Joan Berman , Ph.D., for their work ...
... Joseph G. Morse , a professor of entomology ... year,s recipient of the California Citrus Quality Council ... of "his steadfast dedication in the field of entomology ... For more than three decades, Morse has provided ...
... led by the University of Colorado Boulder has been awarded $9.2 ... research modifying E. coli to produce biofuels such as ... we have worked on for the past decade to the next ... and Sustainable Energy Institute, or RASEI. "In this project, we will ...
Cached Biology News:Einstein researchers receive 2 Grand Challenges Explorations grants to combat HIV and TB 2Einstein researchers receive 2 Grand Challenges Explorations grants to combat HIV and TB 3UC Riverside entomologist recognized for research in citrus entomology 2CU-led team receives $9.2 million DOE grant to engineer E. coli into biofuels 2
(Date:8/22/2014)... 22, 2014 Research and Markets ... Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction ... to their offering. The global molecular ... 2013, and is expected to grow at a CAGR ... biology enzymes, kits, & reagents find applications in a ...
(Date:8/22/2014)... Toronto, Canada (PRWEB) August 22, 2014 ... traits in model organisms can be accelerated by ... design and manufacturing technologies, the custom SeqCap EZ ... such research. , Mr. Watson will additionally present ... seen with commercially available human and mouse exome ...
(Date:8/21/2014)... 21, 2014 DNA vaccine pioneer ... its development of JRC-LAMP-vax, an innovative and safe potential ... IC studies began this month in Hawaii, moving the ... , The Japanese red cedar releases pollen that causes ... Mountain Cedar pollen wreaks similar havoc in Colorado, New ...
(Date:8/21/2014)... 21, 2014 2014 Deep ... is a professional and in-depth research report ... provides basic Seaweed Fertilizer information, including Seaweed ... structure as well as industry overview. This ... domestic market as well as global industry ...
Breaking Biology Technology:Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 2Global Molecular Biology Enzymes, Kits, & Reagents (Cloning, Epigenetics, PCR, Restriction Digestion, Sequencing) Market - Forecast to 2018 3Efficient Identification of Protein-Coding Variants in a Model Organism Through Exome Sequencing, New Webinar Hosted by Xtalks 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 2Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 3Relief for Allergy Sufferers Finally in Sight: Immunomic Therapeutics Closes in on Treatment for Hay Fever in Japan, U.S. 4Internationals Seaweed Fertilizer Industry 2014 Development Trend Analysis in New Research Study at DeepResearchReports.com 2Internationals Seaweed Fertilizer Industry 2014 Development Trend Analysis in New Research Study at DeepResearchReports.com 3
... Tech Coast Angels (TCA) today announced that Mike ... Board of Directors. Napoli has been a member of TCA ... Network Executive Committee for seven years, started the Inland Empire ... three years, and was chairman of two TCA Fast Pitch ...
... 2011 Cell Therapeutics, Inc. (CTI) (Nasdaq and MTA: ... WBBA Life Science Innovation Northwest Conference on Thursday, March ... of the Washington State Conference Center, Seattle, Washington. WBBA ... 201110:25 AM PST/1:25 PM EST/7:25 PM CETRoom 607, Washington ...
... of biomass to fuel requires several steps: chemical pretreatment ... acid, detoxification to remove the toxic chemicals required in ... to fuels. Virginia Tech researchers have discovered an enzyme ... infused liquid biomass (hydrolysate), meaning that the detoxification step ...
Cached Biology Technology:Mike Napoli Named New Chairman of Tech Coast Angels, Explains Enhanced Process for Entrepreneurs 2Mike Napoli Named New Chairman of Tech Coast Angels, Explains Enhanced Process for Entrepreneurs 3Enzyme cocktail could eliminate a step in biofuel process 2
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
TXNL2 Antibody...
Rat polyclonal to Vitamin B3 ( Abpromise for all tested applications). Antigen: Chemical / Small Molecule, Vitamin B3 conjugated to BSA....
Rabbit polyclonal to CAMK 1D beta ( Abpromise for all tested applications). entrezGeneID: 57118 SwissProtID: Q5SQQ7...
Biology Products: