Acidity Analysis of Precipitation Occurred at Woongchon, Choongnam

충남 웅천에서 관측된 강수의 산성도 연구

  • 이근준 (한.중 대기과학연구센터/한국교원대학교) ;
  • 정용승 (한.중 대기과학연구센터/한국교원대학교)
  • Published : 1996.06.01

Abstract

Sampling of precipitation occurred at Woongchon in Choongnam from the period between May 1994 and April 1995 was made, and analysis on the data was carried out on observed pH values of the precipitations. It was found that weighted mean pH values were .sim. 4.8 and that acid rain occurred at the site of the Yellow Sea's coastal area. The results agree well with the earlier observations made at other sites of a background monitoring network. The annual values observed at the background monitoring sites were too low in comparison with the mean pH values (5.3 .sim. 5.9) obtained from urban stations of the Ministry of Environment. It was observed that values of pH in rain water often changed with time during the event of precipitation, and the low values usually depended on an airflow and a cyclone that originated in the source region.

Keywords

References

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