Navigation Links
'Chemical equator' discovery will aid pollution mapping
Date:9/23/2008

Scientists at the University of York have discovered a 'Chemical Equator' that divides the polluted air of the Northern Hemisphere from the largely uncontaminated atmosphere of the Southern Hemisphere.

Researchers from the University's Department of Chemistry found evidence for an atmospheric chemical equator around 50 km wide in cloudless skies in the Western Pacific. Their findings show for the first time that the chemical and meteorological boundaries between the two air masses are not necessarily the same.

The discovery will provide important clues to help scientists to model simulations of the movement of pollutants in the atmosphere more accurately, and to assess the impact of pollution on climate. The study is part of the ACTIVE project (Aerosol and Chemical Transport in Tropical Convection) funded by the Natural Environment Research Council.

Previously, scientists believed that the Intertropical Convergence Zone (ITCZ) formed the boundary between the polluted air of the Northern Hemisphere and the cleaner air of the Southern Hemisphere. The ITCZ is a cloudy region circling the globe where the trade winds from each hemisphere meet. It is characterised by rapid vertical uplift and heavy rainfall, and acts as a meteorological barrier to pollutant transport between the hemispheres.

But the new research, to be published in the Journal of Geophysical Research - Atmospheres, found huge differences in air quality on either side of the chemical equator, which was 50 km wide and well to the north of the ITCZ. The study revealed that carbon monoxide, a tracer of combustion, increased from 40 parts per billion to the south, to 160 parts per billion in the north. The difference in pollutant levels was increased by extensive forest fires to the north of the boundary and very clean air south of the chemical equator being pulled north from the Southern Indian Ocean by a land based cyclone in northern Australia.

The sc
'/>"/>

Contact: David Garner
dcg501@york.ac.uk
44-019-044-32153
University of York
Source:Eurekalert

Page: 1 2

Related biology news :

1. Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
2. American Chemical Societys Weekly PressPac -- Aug. 8, 2007
3. Thermochemical process converts poultry litter into bio-oil
4. New chemically-sensitive MRI scan may bypass some invasive diagnostic tests in next decade
5. Natural chemical found in broccoli helps combat skin blistering disease
6. American Chemical Societys Weekly PressPac -- Aug. 15, 2007
7. American Chemical Societys Weekly Press Pac
8. Amber specimen captures ancient chemical battle
9. American Chemical Societys Weekly Presspac -- Aug. 29, 2007
10. American Chemical Society calls green chemistry bill a smart step
11. Institution of Chemical Engineers chooses Elsevier as publishing partner
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... EC-FP5 four-year project, delivering its first release in 2004. ... in several EC projects, as a part of the ... BON), to increase the general awareness of the work ... dissemination of the Fauna Europaea results, the ... e-Publishing tools to prepare data papers for all 56 ...
(Date:9/17/2014)... very cleverly, some lessons on how to create the ... Shaw, director of the Optical Technology Center at Montana ... the nanoscale, we,ll discover them." , Some of those ... a conference called "The Nature of Light: Light in ... University of Arizona College of Optical Sciences. The conference ...
(Date:9/17/2014)... research from the Copenhagen Centre for Social Evolution and ... theory that birth weight and -length can partially predict ... such as autism and schizophrenia later in life. The ... and subsequent hospital diagnoses for up to 30 years, ... The study is published today in the Proceedings ...
Breaking Biology News(10 mins):Contributions on Fauna Europaea: Data papers as innovative model on expert involvement 2Nature's designs inspire research into new light-based technologies 2Nature's designs inspire research into new light-based technologies 3Size at birth affects risk of adolescent mental health disorders 2Size at birth affects risk of adolescent mental health disorders 3
... Ants, wasps and humans live in highly complex societies. Our ... trying to find the balance between cooperation and conflict. Understanding ... us key insights into the evolution of sociality in animals. ... biologist Floria Mora-Kepfer Uy, looks at colonies of social wasps ...
... , Press conference announcement: Three years after Fukushima: ... dial-in information, Press room information, Attention PIOs: Sending ... information, Press registration information, Hotel information, U.S. visa ... information about the Ocean Sciences Meeting, please see ...
... powered by methanol or hydrogen have been well studied, ... biomass as a fuel because of the lack of ... researchers at the Georgia Institute of Technology have developed ... converts biomass to electricity with assistance from a catalyst ...
Cached Biology News:What cooperation and conflict in an insect's society can teach us about social acceptance 22014 Ocean Sciences Meeting: Press conference announcement; sending press kits; press registration 22014 Ocean Sciences Meeting: Press conference announcement; sending press kits; press registration 32014 Ocean Sciences Meeting: Press conference announcement; sending press kits; press registration 42014 Ocean Sciences Meeting: Press conference announcement; sending press kits; press registration 5Solar-induced hybrid fuel cell produces electricity directly from biomass 2Solar-induced hybrid fuel cell produces electricity directly from biomass 3
(Date:9/17/2014)... Sept. 17, 2014 /PRNewswire/ - SQI Diagnostics Inc. (TSX-V: ... and commercializes proprietary technologies and products for advanced microarray ... approved for trading in the United States ... expected to commence on September 17, 2014 on the ... to trade on the TSX Venture Exchange under its ...
(Date:9/17/2014)... 17 de septiembre de 2014  Cryoport, ... proveedor mundial de soluciones logísticas avanzadas criogénicas ... la vida, anunció hoy la contratación de ... con sede en Rótterdam, Países Bajos, para ... Europa en rápido crecimiento. Según los términos ...
(Date:9/17/2014)... , September 17, 2014 ... mode of action from a truly novel ... MGB Biopharma, a biopharmaceutical company ... announces today that it has secured £4.0m ... lead antibacterial, MGB-BP-3, against a range of ...
(Date:9/17/2014)... Cambridge, MA (PRWEB) September 17, 2014 ... and Safety (ACRES) , a multi-stakeholder non-profit collaborative ... and efficiency in clinical research, today announced Phase ... (SASI). , Amir H. Kalali, ... Quintiles and Arti Bajpai, President, Compliance and Quality ...
Breaking Biology Technology:SQI Diagnostics to begin Trading on the OTCQX Marketplace in the United States 2SQI Diagnostics to begin Trading on the OTCQX Marketplace in the United States 3Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 2Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 3Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 4Cryoport contrata a Broekman Group para mejorar su apoyo operativo y logístico en Europa 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7Global Standards Initiative for Clinical Research Sites Advances 2Global Standards Initiative for Clinical Research Sites Advances 3Global Standards Initiative for Clinical Research Sites Advances 4
... April 30 Dendreon Corporation,(Nasdaq: DNDN ) today announced ... Deutsche Bank 33rd Annual Health Care Conference ... ET, Bank of America Health Care Conference Four ... 11:00 a.m. ET, Rodman & Renshaw 5th Annual Global ...
... 3rd Among US For-Profit Healthcare Companies, EL ... provider of kidney care services, announced it has ... Magazine as one of the Top 125,ranking companies ... awarded to organizations that demonstrate a deep,commitment to ...
... Molecular Quantitative Viral Load Assay, ORANGE COUNTY, ... BEC ) announced today that it has ... virus (HCV) from Siemens Healthcare,Diagnostics. Under the agreement, ... viral load HCV blood test for use on ...
Cached Biology Technology:DaVita Honored for 4th Year as Training Top 125 Recipient 2Beckman Coulter Acquires Rights to Hepatitis C Virus 2
One bottle containing 30 ml of protein solution and 0.1% sodium azide....
...
Sheep polyclonal to Quinolone ( Abpromise for all tested applications). Antigen: Norfloxacin(N)conjugated to BSA...
Certified U.S. origin. Bovine Serum:, *Certified U.S. origin. Available raw, nonsterile filtered, or sterile filtered. , , *Sterility tested , , *Low Hemoglobin levels , , *Mycoplasma testing upon...
Biology Products: