Abstract
The daily pollutant variations of PM2.5, PM10, SO2 and NO2 are useful for environment protection and advices for human health. Two years data from three different time period before Spring Festival (SF), after SF and after Lantern Festival (LF) in Shenyang city of year 2013 and 2014 was analyzed. Results showed that concentrations of PM2.5, PM10, SO2 and NO2 were higher in 2014 than those in 2013, especially for SO2 and NO2; Among the three periods, concentrations of four air pollutants followed the sequence of after LF > before SF > after SF and road traffic emissions are more contributive than firework combustion during the festival celebration. We conclude that air pollution in Shenyang City is worsening and more influenced by vehicular pollution.
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