HOME >> BIOLOGY >> NEWS
Wind-borne pollutants may travel thousands of miles

COLLEGE STATION, - Air pollution is not just a local problem. In fact, research by geoscientists at Texas A&M University find that pollutants can travel thousands of miles, so the air you breathe may contain pollutants brought by the wind.

A team of geoscientists -- June-Soo Park, Steve Sweet, and Terry Wade -- at Texas A&M's Geochemical and Environmental Research Group (GERG) came to these conclusions while studying how pollutants such as polynuclear aromatic hydrocarbons (PAHs), pesticides, and polychlorinated biphenyls (PCBs) are transported in the atmosphere to Galveston and Corpus Christi bays and removed by rain and dust. The scientists also studied how gaseous pollutants are exchanged between the air and water.

They found that air pollutants could be transported over long distances instead of being trapped in the ocean or the soil, and that gaseous water pollutants could evaporate into the atmosphere instead of staying in the ocean. In both cases, the airborne pollutants could lead to deposition of pollutants long distances from where they were produced or used.

"Most scientists used to think that organic pollutants were not present as gas in the air," Wade says. "To our surprise, we have learned over the last 30 years that organic pollutants can be in the vapor phase, which means that they can be transported over long distances."

For example, high levels of pesticides such as DDT, chlordane and toxaphene are present in beluga whales from the Arctic, where they were not used.

"What we do here in Texas can affect what is happening in the Arctic," Wade says. "We have added these contaminants to the environment, and now we can see that they are showing up in areas where we would not have expected them to be."

To assess the whereabouts of the pollutants, Wade and his collaborators used rain and air samplers that they installed close to Galveston and Corpus Christi bays.

A rain sampler that opens only whe
'"/>

Contact: Judith White
jw@univrel.tamu.edu
979-845-4664
Texas A&M University
19-Sep-2001


Page: 1 2 3

Related biology news :

1. New tool predicts how long pollutants will stay in soil
2. New space-borne instrument to track greenhouse gases, ozone destroyers, and other pollutants
3. Film found on windows after 9/11 reveals higher level of pollutants
4. New study begins to unravel fate of toxic pollutants harbored in Arctic waters
5. Novel bacterium detoxifies chlorinated pollutants
6. Mediterranean fishery recovers, thanks to manmade pollutants
7. Research shows how pollutants affect tree growth
8. Urban air pollution linked to birth defects for first time; UCLA research links two pollutants to increased risk of heart defects
9. Vapor-recovery system captures and recycles air pollutants
10. Aerosol pollutants in atmosphere likely masking global warming
11. Road dust: Rural vehicles emit more pollutants than urban ones

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/19/2016)... , UAE, April 20, 2016 ... implemented as a compact web-based "all-in-one" system solution for ... biometric fingerprint reader or the door interface with integration ... modern access control systems. The minimal dimensions of the ... readers into the building installations offer considerable freedom of ...
(Date:3/31/2016)... , March 31, 2016 ... ) ("LegacyXChange" or the "Company") LegacyXChange is ... users of its soon to be launched online site ... https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also provide potential shareholders ... of DNA technology to an industry that is notorious ...
(Date:3/22/2016)... PROVO and SANDY, Utah ... Ontario (NSO), which operates the highest sample volume laboratory ... and Tute Genomics and UNIConnect, leaders in clinical sequencing ... announced the launch of a project to establish the ... panel. NSO has been contracted by ...
Breaking Biology News(10 mins):
(Date:5/27/2016)... ISELIN, New Jersey and ... 2016 Indegene ( ... kommerziellen und marketingorientierten Lösungen für die Life-Science-Branche, ... ), ein bekannter weltweiter Anbieter von innovativen ... im Zuge des Starts von IntraScience heute ...
(Date:5/26/2016)... Jersey and READING, England ... Indegene ( http://www.indegene.com ), a leading global ... life science, pharmaceutical and healthcare organisations and TranScrip ... innovative scientific support throughout the product lifecycle, today ... the launch of IntraScience.      (Logo: ...
(Date:5/26/2016)... ... May 26, 2016 , ... After several ... Inc. at the City of Knowledge in Panama, a 6 year-old Duchenne’s ... the US earlier this year following FDA approval of a second application for ...
(Date:5/25/2016)... ... , ... Lajollacooks4u has become a rising hotspot for specialized team building events ... attractions. Fortune 500 companies, such as Illumina, Hewlett-Packard, Qualcomm and Elsevier, have traveled ... , Each event kicks off with an olive oil and salt-tasting competition. From ...
Breaking Biology Technology:
Cached News: