Research Highlights

The laboratory has gained international recognition for its analyses of aerosol particle samples. It has entered into interlaboratory comparison analyses of standard samples with participating laboratories at Kyoto University in Japan and at Element Analysis Corporation in Tallahassee, Florida, with results that demonstrate its ability to produce high-quality analytical results.

Researchers have been assisted through interactions with scientists at other laboratories both within China and internationally. Wang Mingxing of the Chinese Academy of Sciences (CAS) Institute of Atmospheric Physics has advised Zhu Guanghua about aerosol particle sampling and analysis needs in air chemistry research and Wang has made his institute's sampling equipment available to the laboratory. Wang Mingxing brought together Zhu Guanghua and Zhang Xiaoye, a staff scientist at the CAS Xi'an Laboratory of Loess and Quaternary Geology, resulting in collaborative studies of aerosol transport characteristics and publication of their work in international journals.

Zhu Guanghua is collaborating with Yoshikazu Hashimoto of Keio University in Yokohama, Japan and Mitsuru Fujimura and Akira Inayoshi at the Nippon Environmental Pollution Control Center in Tokyo, Japan to measure aerosols through a network of stations in China (interior), Korea, and Japan. Through the Japanese collaboration, computer software has been donated to the university for use in its PIXE laboratory and in teaching programs conducted by the computer center. Additional urban air quality research by the laboratory has been supported by the International Atomic Energy Agency.

Both Zhu Guanghua and Wang Xinfu have attended the triennial international conferences on PIXE and its analytical applications, where they have presented research results. It is likely that the laboratory will become an important contributor to aerosol studies on a global scale.

CHINA REMOTE SENSING SATELLITE GROUND STATION

The China Remote Sensing Satellite Ground Station, which is administered by CAS, is headed by Wang Xinmin. This ground station is unique in that it is the only Landsat Five, or Thematic Mapper (TM) imagery receiving station in China. The receiving antenna is actually 100 km northeast of Beijing and high-density digital tapes are delivered to the station two or more times a week for processing. Reception is from east of Japan to about 80 percent of China to the west. China needs another receiving station to get imagery for the



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