Navigation Links
Ozone intrusions -- humankind's fault?
Date:11/8/2007

Depending on its altitude, ozone can be either friend or foe.

Thanks to new research led by The University of Western Ontario, scientists will now have a better understanding of ozone, its origin and the role good or bad it plays in polluting our atmosphere.

Ozone is a colourless, toxic gas named for the Greek word for smell because of its pungent odour.

In the stratosphere, acting as friend, it forms the ozone layer, which fends off harmful ultraviolet solar rays.

During pollution events, ozone turns to foe as it interacts with other pollutants, effectively generated by factories, cars and machinery, and descends from the stratosphere into the troposphere (the lowest layer of the atmosphere), where the ozone itself becomes a pollutant that damages forests, crops and human health.

In this weeks Nature, the worlds leading scientific journal, a study led by Western physics and astronomy professor Wayne Hocking reveals new discoveries about how ozone moves through our skies and how so-called ozone intrusions from higher altitudes can be monitored using a relatively simple radar instrument called a windprofiler.

The research suggests that ozone-intrusion events are associated with relatively sudden changes in the altitude of the boundary between the troposphere and the stratosphere (called the tropopause), which is usually found at an altitude of eight to 12 kilometres.

We often blame humankind for the problems associated with the ozone layer and ozone pollution, and indeed we have to take responsibility for some significant effects, but this research shows that sometimes the effects we see are just nature in action, said Hocking, who leads Westerns Atmospheric Dynamics Group, a research team that studies dynamical motions in the atmosphere at heights from ground level to 100 kilometres altitude.

The research was conducted by releasing balloon-borne, ozone-detecting instruments into the skies above Quebec and Ontario, while measuring tropopause height using windprofilers.


'/>"/>

Contact: Jeff Renaud
jrenaud9@uwo.ca
University of Western Ontario
Source:Eurekalert

Related biology news :

1. Skin oil -- ozone interactions worsen air quality in airplanes
2. NASA keeps eye on ozone layer amid Montreal Protocols success
3. 2007 ozone hole smaller than usual
4. MIT: Human-generated ozone will damage crops
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/1/2016)... -- Rising sales of consumer electronics coupled ... gesture control market size through ... electronics coupled with new technological advancements to drive global ... through 2020   --> Rising ... to drive global touchfree intuitive gesture control market ...
(Date:1/28/2016)... 28, 2016 Synaptics (NASDAQ: SYNA ), a leading ... second quarter ended December 31, 2015. --> ... fiscal 2016 increased 2 percent compared to the comparable quarter last ... fiscal 2016 was $35.0 million, or $0.93 per diluted share. ... for the first quarter of fiscal 2016 grew 9 percent over ...
(Date:1/25/2016)... 25, 2016  Glencoe Software, the world-leading supplier of ... industries, will provide the data management solution OMERO Plus ... Photo - ... Phenotypic analysis measures the characteristics and ... comparisons between states such as health and disease, the ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... 2016  Spectra BioPharma Selling Solutions (Spectra) is ... biopharma companies the experience, expertise, operational delivery and ... sales teams. Created in concert with industry leading ... strategic and tactical needs of its clients by ... both personal and non-personal promotion. ...
(Date:2/11/2016)... York, NY (PRWEB) , ... ... ... (BPI), a business-to-business publication dedicated to delivering cutting-edge information focused on the ... Healthcare Life Sciences to become a premier sponsor of the 2016 BioProcess ...
(Date:2/11/2016)... , February 11, 2016 ... Corporation ("PositiveID" or "Company") (OTCQB: PSID), a life ... today that its Thermomedics subsidiary, which markets the ... its growth plan in January 2016, including entering ... increasing sequential monthly sales growth, and establishing several ...
(Date:2/11/2016)... ... February 11, 2016 , ... ... 150 years, continues today to pursue the highest level of accuracy and quality ... the AR9 Refractometer and the AR5 Refractometer. Accurate, reliable and tough enough ...
Breaking Biology Technology: