Measurement of Atmospheric NO_2 Concentrations in Antarctica with NO_2 Filter Badge and Tube
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概要
- 論文の詳細を見る
Nitrogen dioxide (NO_2) levels in Antarctica were monitored to determine background levels and distribution profile. The NO_2 levels were higher than those reported from tropical remote areas. The NO_2 concentrations gradually increased proceeding from the edge of the continent to the polar region, suggesting global pollutant transportation. To avoid artificial contamination of the data, a sled was used because motor vehicles discharge high levels of NO_2. NO_2 tubes and filter badges were selected as monitoring devices because of their convenience of transportation in Antarctica. They are small in size, light and easy-to-handle, and usually employed in personal NO_2 exposure measurements. Because of severe Antarctica climate, the devices needed to be protected from the bitter cold. For that purpose, we designed an insulation container to shield the devices. The fixed NO_2 monitoring site was Patriot Hill, located on the coast of the Weddell Sea. We also measured NO_2 concentration along the expedition route from the fixed site to the South Pole, along with the 80 degrees west longitude. The survey periods were during November 1992 and January 1993. NO_2 concentrations in Antarctica ranged from 1.0 to 2.8 ppb, which were relatively higher than previously reported background concentrations. The NO_2 concentrations increased when nearing to the South Pole, supporting the theory that atmospheric circulation converges in the polar regions. This indicated that air pollutants discharged in populated regions were widely spread to isolated areas, like the South Pole.
- 東海大学の論文
著者
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Yanagisawa Yukio
Dep. Of Environment Systems Inst. Of Environmental Studies Graduate School Of Frontier Sciences The
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Yanagisawa Yukio
The University Of Tokyo School Of Frontier Sciences
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Yanagisawa Yukio
Junior College Of Nihon University
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Kasuga Hitoshi
Tokai University
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Kasuga H
Tokai University School Of Medicine
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MATSUKI Hideaki
Tokai University Junior College of Nursing and Medical Technology
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Yoshikawa Kenji
Hokkaido University Institute Of Environmental Science
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Yanagisawa Y
Junior College Of Nihon University
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Matsuki Hideaki
Tokai University School Of Health Sciences
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Matsuki Hideaki
Department Of Public Health School Of Medicine Tokai University
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