The chemical composition of acid snowfall in northern part of Hokkaido.

• SATOH Fuyuki

  College Experimental Forests, Hokkaido University

• SASA Kaichiro

  College Experimental Forests, Hokkaido University

• FUJIWARA Koichiro

  Faculty of Agriculture, Yamagata University

Bibliographic Information

Other Title

• 北海道北部における酸性雪
• ホッカイドウ ホクブ ニ オケル サンセイ ユキ

Abstract

The chemical composition of snowfalls in the Teshio Experimental Forest Hokkaido University in northern Hokkaido was investigated from December 1990 to March 1995. Although there was no industrial source of acid pollutants around the study area, most of the snowfalls observed were “acid snow”. with pH valnes less than 5.6. The pH values of snofalls after cyclones were lower than those before cyclones. Snow were brought from W in the Japan Sea side and from N in the Okhotsk Sea side, the former is important to monitor acid pollutants which are likely to be transported from the Chinese mainland.<BR>Although non-seasalt SO₄^2- was relatively rich in the snowfalls in the Japan Sea side, there was no difference in pH of snowfalls with different wind directions. The presence of non-seasalt Ca²⁺in the Japan Sea side snowfalls suggested that the acidity of snowfalls was partly neutralized by the soil particles in the air, such as loess particles, covering over the Continent.

Journal

• Journal of the Japanese Society of Snow and Ice

  Journal of the Japanese Society of Snow and Ice 58 (4), 285-294, 1996

  The Japanese Society of Snow and Ice

Keywords

• acid snow
• chemical composition
• long-range pollutants transport
• long-term monitering
• cold and snowy region

Details

• CRID: 1390001206461868928
• NII Article ID: 10002382384
• NII Book ID: AN00131221
• DOI: 10.5331/seppyo.58.285
• ISSN: 18836267
• ISSN: 03731006
• NDL BIB ID: 4002742
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4002742
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed