银川市灰霾天气的环境特征分析  

Environmental features analysis of haze in Yinchuan

作　　者：樊韬 舒志亮[2] 翟涛[2] 陶涛[2] 孙艳桥[2] 许夕恕[2] 

机构地区：[1]宁夏回族自治区固体危险废物管理中心,宁夏银川750011 [2]宁夏防灾减灾重点实验室,宁夏银川750002

出　　处：《宁夏工程技术》2011年第3期193-196,共4页Ningxia Engineering Technology

基　　金：宁夏回族自治区2010科技攻关基金资助项目(KGX-12-10-04)

摘　　要：利用银川市地面气象观测站2000—2009年的灰霾资料,结合同期的环境监测数据,对银川市灰霾天气的环境特征进行了分析.结果表明,银川市近10年出现3级以上污染日数中仅灰霾天气就占1/4,且占灰霾天气出现总次数的40%,说明空气污染与灰霾天气现象的出现密切相关;银川市3种主要污染物在出现灰霾时质量浓度值均高于无灰霾天气;银川市3种主要污染物质量浓度出现连续性灰霾天气时均高于平均质量浓度,且连续日数越长,污染浓度越高;采暖期(当年11月到翌年3月)出现连续灰霾天气占其出现总次数的79%,进一步验证冬季采暖是导致灰霾天气形成的重要原因;SO2和PM10同时达到3级以上污染的情况下,有85%的可能会出现连续性灰霾天气.Using Yinchuan meteorological observatory 2000-2009 haze material,combination with the same period of environmental monitoring data in Yinchuan,haze characteristics are analyzed.The results show that,in recent 10 years in Yinchuan,3 or more class pollution days to the haze weather days is 1/4,is 40 percentage of haze weather frequency.That shows air pollution has relation to haze weather closely.When haze weather appears continually,concentration of three main pollutants was higher than average concentration,and the days longer,the pollution concentration higher.During heating period,in November to March of next year,the frequency of consecutive gray haze weather is 79% to total frequency,it is corroborated fatherly that winter heating is important reason for dust haze weather formation.Under the condition of SO2 and PM10 pollution reaches 3 or more class in same time,the probability of haze weather occurrence is 85%.

关 键 词：灰霾天气 空气污染 特征分析 

分 类 号：P421.1[天文地球—大气科学及气象学]