关键词: 霾, 接地逆( 等) 温, 空气质量, 气象条件, 上海

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