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:
TAG: Wind borne pollutants may travel thousands miles

(Date:4/17/2014)... German . Our ... provide us with a continuous stream of information about our ... still in a car the world glides by us ... without effort, our brain calculates self-motion from this "optic flow". ... steady gaze during our own movements. Together with biologists from ...
(Date:4/17/2014)... German . If ... of him, he can expect his premises to be trashed. ... the consequences is enough to make restaurant owners pay up. ... their eggs in other birds, nests. If the host birds ... revenge by destroying the entire nest. Consequently, it is beneficial ...
(Date:4/17/2014)... painted a stark warning on the possible effects of ... effect 32 times that of carbon dioxide. Now a ... act as fully regenerable electron acceptors which helps explain ... instead of being released to the atmosphere. However, there ... may enter into a vicious cycle to release large ...
Breaking Biology News(10 mins):How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Methane climate change risk suggested by proof of redox cycling of humic substances 2
(Date:1/15/2014)... AudioNotch is the internet's leading provider ... treatment of tinnitus. Patients listen to sound therapy that ... period of weeks to months, their tinnitus volume decreases. , ... Notched Music and Notched White Noise. Now, AudioNotch is pleased ...
(Date:1/14/2014)... 2014  3D Communications, a leading provider of strategic communications services to ... events in the United States and ... Cox , JD, is returning to the firm,s Washington, ... 3D after more than two years of service as Associate Commissioner ...
(Date:1/14/2014)... January 14, 2014 iLab Solutions, the leader ... the new Director of Product Strategy. In this role, Michelle ... iLab sub-teams to guide in the development of iLab products. ... the maximum possible benefit to the scientific community by offering ...
(Date:1/14/2014)... 13, 2014 Bob Hainsey, a semiconductor ... 20 years in the industry, has joined SPIE, ... will serve as the society’s Science and Technology Strategist. ... SPIE as our Technology Strategist, further strengthening the technical ...
Breaking Biology Technology:Former FDA Associate Commissioner Returns To 3D Communications 2iLab Solutions Announces Michelle Detwiler as the New Director of Product Strategy 2Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2
Cached News: