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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/23010

    標題: A Study on the Relationship of pH Values in Precipitation and Weather Types in the Taipei Area
    作者: Jing-Shiou Chen
    Yu Yin Wang
    貢獻者: 工業安全衛生系
    關鍵字: Concentration
    Weather pattern
    Long range transport
    日期: 1996
    上傳時間: 2010-09-17 14:27:01 (UTC+8)
    摘要: The hourly pH data from an automatic, sequential precipitation collector at a site in the Taipei Metropolatin Area from 1988 has been analyzed for this study. In these three years 70% of the pH values were less than 5. In 1986, 8% wereless than 4, but a teodency toward less acidity from 1986 to 1988 was evident. The hydrogen ion concentration deduced from the pH is found to be highest in the summer and secondly in the spring. The concentration in winter is the lowest. The pH seasonal variation is similar to that found in the northeastem United States by other investigators. Shower and thunderstorm precipitation types in summer are particularly acidic. The precipitation associated with typhoons in the summef and the north-eastem monsoon in the winter are less acidic. Typical weather patterns associated with two cases of low pH and two cases of high pH were also presented here too. Results suggested that long range transport of pollutants from mainland China may influence the pH in the Taipei area quite a lot. However more thoughful studies including observations and modelling are needed.
    關聯: 嘉南學報 22期:p.72-86
    Appears in Collections:[嘉南學報] 22期 (1996)
    [職業安全衛生系(含防災所)] 期刊論文

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