Abstract:

Based on the daily surface meteorological data，balloon sounding data and haze data at Baoshan station of Shanghai from 1990
to 2011，and the daily mass concentration data of PM10
，SO2 and NO2 in Shanghai from 2001 to 2011，the relationships between haze
weathers and ground inversion( isothermal) ，air quality，meteorological conditions were analyzed in Shanghai． The results indicate that
the occurrence of haze weather was closely related to the occurrence of ground inversion( isothermal) ，especially the ground inversion
( isothermal) at 08 o’clock． In haze days the air quality was mainly good ( 50 ＜ API ＜ 100) and slightly polluted ( 100 ＜ API ＜ 150) ，
with daily wind speed basically less than 4． 0 m/s and mainly NW wind direction． The annual and seasonal mean mass concentration of
PM10
，SO2
，NO2 in haze days were obviously higher than those in non － haze days． There was significantly negative correlation between
haze days and rain days and rainfall，and significantly positive correlation between haze days and monthly longest consecutive dry days．

Key words: haze, ground inversion( isothermal) , air quality, meteorological condition, Shanghai

摘要：

利用上海宝山站1990 ～ 2011 年逐日气象要素数据、探空数据和霾日数据以及上海市2001 ～2011 年逐日PM10、SO2和NO2空气污染物质量浓度数据，分析了上海霾的发生与接地逆( 等) 温、空气质量和气象要素的关系。结果表明，霾日出现与接地逆( 等) 温，尤其08 时接地逆( 等) 温密切相关，上海出现霾日时以良和轻微污染天气居多，PM10、SO2和NO2 3 种空气污染物年均质量浓度和4季质量浓度在霾日都明显高于非霾日，上海霾日风速基本都在4． 0 m/s 以下，风向以西北向风为主，霾日数与降水日数和降水量呈负相关，而与月最长连续无降水日数呈正相关。

关键词: 霾, 接地逆( 等) 温, 空气质量, 气象条件, 上海