Vertical Distribution of Particulate Mercury as Measured on a Meteorological Observation Tower (213m) |
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| Authors: | Masataka Nishikawa Tsugio Mizoguchi Yukiko Dokiya Shinichi Bessho Hiroki Haraguchi |
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| Institution: | 1. National Institute for Environmental Studies , Onogawa, Tsukuba, 305;2. Meteorological, College , Asahicho, Kashiwa, 277;3. Meteorological Research Institute , Nagamine, Tsukuba, 305;4. Department of Chemistry , University of Tokyo , Bunkyo-ku, Tokyo, 113 |
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| Abstract: | Abstract The concentration of mercury in airborne particles was determined in samples collected at heights of 1m and at 175m up the Meteorological Observation Tower (213m) at the Meteorological Research Institute, Tsukuba between August 1985 and April 1986. The concentrations of particulate mercury at the two heights were compared with gaseous mercury levels at a height of 10m and with other chemical components in the particles. The concentrations of particulate mercury at both heights showed no positive correlation with those of gaseous mercury, total suspended particles, sulfate, chloride, sodium or calcium. However, there was some positive correlation between particulate mercury and nitrate concentrations especially at 175m; the concentrations of these components were found to be high when the wind direction was southwesterly. These results suggest that these components were transported from the Tokyo Metropolitan area. |
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| Keywords: | Particulate mercury airborne particles vertical distribution meteorological observation tower (213m) |
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