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《Environmental Science & Technology》 2017-S1
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Statistical Analysis of Acid Rain in Dandong during 2006-2014

LIU Yuche;DAI Ping;YANG Hongbin;ZHAO Hujia;ZOU Xudong;WANG Hongyu;LIU Qingwu;ZU Jinhui;Shenyang Institute of atmospheric environment,China Meteorological Administration;Liaoning Meteorological Information Center;  
Using daily precipitation observation data,Recording the start and end time of eachprecipitation;Observed precipitation;Precipitation sample temperature;The average precipitation pH value was recorded in the three time,Using the method of weights to calculate the annual variation,Monthly variation,Seasonal variation of pH value,The relationship between the degree of acidity and alkalinity and the wind direction and wind speed,Conclusions :1.Annually average:Dandong region perennial acidic precipitation,The mean value of pH is less than 5.6;2.Monthly average:The distribution of the monthly distribution is similar to the sine curve;3.Seasonal average:The spring and Autumn period is high,Low in summer and winter;4.Relationship with wind direction:When the east wind,especially the northeast wind direction,Corresponds to more acid rain days to reach 47 days,The west wind with less acid rain days,Wind direction is east to the south wind and the average pH value of low acidity is higher,The wind is westerly winds and the north winds is the higher pH value of lower acidity;5.Relationship with wind speed:The pH value of precipitation in Dandong area has a decreasing trend with the increase of wind speed.The acidity of precipitation increases with the increase of wind speed,But the trend is not significant.
【Fund】: 中央公益基金:丹东2006-2014年降水酸碱度研究(2015IAE-CMA07)
【CateGory Index】: X517
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