摘要
根据济宁市酸雨观测站2006—2010年的酸雨观测资料，分析了济宁市酸雨的季节变化特征，同时研究了酸性降水与气象条件的关系．统计得出，济宁市的酸雨无论从频率还是从强度上都呈现减弱趋势．在242个降水样本中，pH值小于5．6的酸性样本94个，占38．8％；酸雨在秋季出现频率最高，冬、夏两季频率较少，且冬半年要明显高于夏半年；济宁市的酸雨多出现在夜问，非酸性降水多出现在白天，这与夜间混合层高度低有关．分析得出，济宁市形成酸雨的主要物质足SO2，其次是NOx，此外还与风向风速、降水量、雾（轻雾）以及地理位置和地形有密切的关系．
The property of seasonal variation for acid rain in Jining, also the relationship between acid precipitation and meteorological factor were analyzed according to the observed acid rain data in 2006 till 2010 that from Acid Rain Observation Station of Jining. Through statistics, the tendency for both frequency and intensity of acid rain in Jining was shown to be reduced in those years. Among the 242 precipitation samples, there were 94 of them with pH value below 5.6, accounting for 38.8% ; the frequency of acid rain in autumn is the highest, while the ones in winter and spring are lower, also the frequency in Winter Half Year was obviously higher than that in Spring Half Year; mostly the acid rain appeared at night, and the non -acid rain appeared in the day, which related to the lower of the mixed layer height. It was analyzed that the formation of acid rain was closely related with S02, then related with NOx, besides, related with direction and speed of the wind, the amount of precipitation and fog（ light fog）, and the geographical position and terrain.
出处
《山东师范大学学报（自然科学版）》
CAS
2011年第4期80-84,共5页
Journal of Shandong Normal University(Natural Science)
关键词
酸雨
PH值
酸雨频率
影响因素
acid rain
pH value
frequency of acid rain
impact factors
