The characterization and distribution of aerosol and gaseous species in the winter monsoon over the western pacific ocean |
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| Authors: | T. Okita M. Okuda K. Murano T. Itoh I. Kanazawa M. Hirota H. Hara Y. Hashimoto S. Tsunogai S. Ohta Y. Ikebe |
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| Affiliation: | (1) National Institute for Environmental Studies, Yatabe-machi, 305 Tsukuba-gun, Ibaraki, Japan;(2) Meteorological Research Institute, Yatabe-machi, 305 Tsukuba-gun, Ibaraki, Japan;(3) National Institute of Public Health, 108 Minatoku, Tokyo, Japan;(4) Faculty of Engineering, Keio University, 223 Yokohama, Japan;(5) Faculty of Sciences of Fisheries, Hokkaido University, 040 Hakodate, Japan;(6) Department of Environmental Engineering, Hokkaido University, 060 Sapporo, Japan;(7) Department of Nuclear Power Engineering, Nagoya University, 464 Nagoya, Japan |
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| Abstract: | During the winters of 1981 and 1982, measurements were taken on two Japanese islands of the aerosol and gaseous species which had been carried by northwesterly monsoons over the Pacific Ocean. The aerosols were characterized as sea-salt particles; soil particles, and as particles of sulfate, nitrate, organics and elemental carbon. At Chichi-jima island, which is about 800 km away from the main islands of Japan, it was found that the level of the anthropogenic components of the aerosols was considerably higher than their background level. The mean concentrations of the species on the islands are given in tabular forms. According to a survey made on board a ferry boat, the aerosol and gaseous species were fairly uniformly distributed along the southern coast of the main Japanese islands. |
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| Keywords: | Long-range transport of atmospheric species Marine aerosol and gas western Pacific Ocean aerosol characterization |
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