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１９９３年３月２５日～４月８日，在厦门市后坑村完成了一次降水的物理与化学同步联合观测，分析了降水样品的ｐＨ值和离子化学组成。结果表明厦门市后坑村春季降水已被酸化，降水ｐＨ加权平均值是４２２。降水中主要离子是ＮＨ＋４，Ｃａ２＋和ＳＯ２－４。厦门市后坑村酸雨是硫酸型的，是由煤烟型大气污染造成的。降水的雨滴谱类型随雨强变化而不同，小雨时是单调递减型，雨强增大时，雨滴谱出现峰值。
From March 25 to April 8, 1993, a physical and chemical synchronic observation of precipitation was completed in Houkeng Village, Xiamen City. The pH value and ion chemical composition of precipitation samples were analyzed. The results show that the spring precipitation in Houkeng Village of Xiamen City has been acidified, and the mean value of precipitation pH is 422. The main ions in precipitation are NH + 4, Ca2 + and SO2-4. Hou Hang Village, Xiamen City, acid rain is sulfuric acid type, is caused by the soot-based air pollution. The types of raindrops of precipitation vary with rainfall intensity, monotonically decreasing type in light rain, and the raindrop spectrum peaks when rainfall intensity increases.