呼和浩特市硫酸盐化速率污染变化趋势及相关性分析  

Pollution trend and correlation analysis of sulfation rate of Hohhot

作　　者：孙向田 Sun Xiangtian(Inner Mongolia Autonomous Region Hohhot Ecological Environment Monitoring Station,Hohhot Inner Mongolia 010030,China)

机构地区：[1]内蒙古自治区呼和浩特生态环境监测站,内蒙古呼和浩特010030

出　　处：《环境与发展》2020年第9期145-147,共3页Environment & Development

摘　　要：通过对2005~2019年呼和浩特市建成区4个大气监测点位硫酸盐化速率的监测分析,结果显示:呼和浩特市硫酸盐化速率2005~2019年呈下降趋势,从2016年起呈断崖式下降,并且低于年评价标准限值;全市及各功能区月度硫酸盐化速率均值都呈U字形变化,即两头1月份和12月份,中间6月份和7月份低。从相关性分析可知,呼和浩特市硫酸盐化速率与二氧化硫、二氧化氮、一氧化碳呈极强正相关性;与降尘呈负的中等程度相关,与臭氧日最大8h滑动平均呈负的极强相关性。The sulfation rate was monitored and analysed at four atmospheric monitoring sites in the Hohhot from 2005 to 2019.It was shown that,the sulfation rate of Hohhot showed a decreasing trend from 2005 to 2019.Since 2016,it has declined precipitously and has fallen below the annual evaluation standard limit.The monthly mean value of sulfation rate showed a u-shaped change in the whole city and the functional areas.According to the correlation analysis,there was a strong positive correlation between sulfation rate and sulfur dioxide,nitrogen dioxide and carbon monoxide,and a negative correlation between sulfation rate and Dustfall,and a negative correlation between sulfation rate and mean maximum 8-hour daily moving average of ozone in Hohhot.

关 键 词：呼和浩特 硫酸盐化速率 污染趋势 相关性 

分 类 号：X833[环境科学与工程—环境工程]