Abstract
The precipitation chemistry in northern Japan, especially Hokkaido, has been investigated since 1982. This area has often been found to have high concentrations of alkaline road dust (asphalt dust) in the air, caused by the use of studded tires during the winter. It is well known that the composition of precipitation in these areas is often dominated by asphalt dust including calcium bicarbonate. However, recently the concentration of asphalt dust in the air has decreased owing to a ban on the use of studded tires. Simultaneously, in precipitation, the lowering of pH values and the increase of hydrogen ion depositions have been occurring owing to the decrease of non-sea-salt calcium ions (nss-Ca2+) concentrations and depositions derived from asphalt dust. In addition, we found that a decrease of nss-Ca2+ firstly leads to a decrease of bicarbonate ions (HCO3 −), the counter ion to nss-Ca2+ in asphalt dust. Therefore, the increase of H+ concentrations and depositions was great in comparison with the decrease of nss-Ca2+ concentrations and depositions in areas where the HCO3 −concentrations, varied by pH, and depositions had been low. Furthermore, this variation was mainly observed in the ionic composition of snow cover and snowfall at sites along the Japan Sea in northern Japan during winter. In this area, the Acid Shock effect may become a serious problem from the decline of pH values in melting snow. Moreover, we found that ammonium ions and non-sea-salt sulfate ions depositions have also been decreasing in response to a decrease of nss-Ca2+ depositions, derived from asphalt dust. It seems that this phenomenon is caused by the decrease of asphalt dust concentrations in the air.
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Altwicker, E. R. and Mahar, J. T.:1984,Atomos. Environ.,18, 1875–1883
Araki, K., Kato, T., Tabuchi, S., Noguchi, I., Takahashi, H., Sakata, K. and Aoi, T.: 1989,Report of Hokkaido Research Inst. for Environ. Pollut.,15, 73–80
Endo, T., Takahashi, T., Muramoto, K., Nakagawa, C. and Noguchi, I.: 1994,American Metrological Society annual meeting 75th, Dallas, 521–522
Quan, H.: 1991,J. Japan Soc. Air Pollut. 26, 283–291
Quan, H. and Chen, Z.: 1993,The 5th International Symposium on Acid Rain and Snow on the Japan-Sea Rim Abstracts, 9–18
Hedin, L. O., Granat, L., Likens, G. E., Buishand, T. A., Galloway, J. N., Butler, T. J. and Rodhe H.: 1994,Nature,367, 351–354
Hokkaido and Tohoku Environmental Laboratories Association, 1993,The Analysis report of Acid Deposition Survey in Hokkaido and Tohoku areas
Ito, T.: 1991,International Workshop on Acid Rain in East Asia Abstracts, 19–25
Iwasaka, Y., Hayashi, M. and Yamato, M.: 1991,Kosa, Water Research Institute, Nagoya University, 250–255
Japan Environment Association, 1990,Acid Precipitation in Japan, The report of Phase I Survey
Kubo, H.: 1983,Monthly Report of the Civil Engineering Research Institute,365, 3–16
Kato, T., Noguchi, I. and Matsumoto, Y.: 1986,Report of Hokkaido Research Inst. for Environ. Pollut.,12, 13–21
Lee, M.H.: 1990,The 2th International Symposium on Acid Rain and Snow in the Circum-Pam-Japan-Sea Area Abstracts, 19–28
Naik, M. S., Momin, G. A., Rao, P. S. P., Safai, P. D., Pillai, A.G. and Khemani, L. T.: 1994,Joint 8th CACGP Symposium 12nd IGAC Conference Abstracts, Fujiyoshida, Japan, 144
Nishikawa, M.: 1993,Proceeding of the International Workshop on Development and Application of Biogeochemical Method in Acid Rain Research, Japan, National Inst. for Environ. Studies, 71–77
Noguchi, I., Kato, K., Matsumoto, Y. and Araki, K.: 1989,Report of Hokkaido Research Inst. for Environ. Pollut.,15, 31–51
Noguchi, I.: 1991,Journal of Environmental Laboratories Association,16, 106–109
Noguchi, I.: 1993,Hokkaido Journal of Public Health,16, 113–125
Noguchi, I.: 1994,Journal of Environmental Laboratories Association,19, 35–39
Otsuka, H., Kato, T., Akiyama, M. and Matsumoto, Y.: 1993,The winter meeting of the chemical research in Hokkaido Abstracts, 51
Song, S.J.: 1991,International Workshop on Acid Rain in East Asia Abstracts, 27–31
Zhao, D., Xiong, J., Xu, Y. and Chan, W. H.: 1988,Atomos. Environ.,22, 349–358
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Noguchi, I., Kato, T., Akiyama, M. et al. The effect of alkaline dust decline on the precipitation chemistry in northern Japan. Water Air Soil Pollut 85, 2357–2362 (1995). https://doi.org/10.1007/BF01186186
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DOI: https://doi.org/10.1007/BF01186186