Effect of Meteorological Factors on Ozone in Shenyang City

Continuous monitoring was conducted during January to December 2013 in 11 ozone monitoring stations in Shenyang, the ozone concentrations and their temporal variation characteristics were studied. The correlation between ozone and related meteorological parameter was analyzed. The results showed that Excessive ozone periods correspond to high tem-perature, low humidity, high winds and high pressure systems that control weather conditions. Temperature have significant positive correlation with ozone. Relative humidity has a significant negative correlation with ozone. Ozone concentrations correlated well with temperature in spring, summer, autumn and with wind speed in winter. When the prevailing wind direc-tion is Southwest, prone to high ozone concentrations. The main relationships we could observe in these analyses were then used to obtain a regression equation linking diurnal ozone concentration in summer with meteorological parameters.