上海金山石化区常规大气污染物随时间变化分析研究

Analysis of Atmospheric Pollutants by Time Variation in Jinshan Petrochemical District,Shanghai

利用上海金山石化点位2014年大气监测资料,分析石化地区SO_2、NO_2、O_3、PM_(10)和PM_(2.5)随时间的变化趋势,为未来工业园区的合理规划布局提供理论基础和决策依据。结果表明:(1)常规大气污染物浓度具有明显的季节性特征,SO_2、NO_2、PM_(10)、PM_(2.5)冬季高浓度,夏季低浓度,O_3变化趋势相反;(2)O_3呈现明显单峰日变化,NO_2、PM_(10)、PM_(2.5)则出现双峰现象,这是由于太阳辐射增强造成光化学反应加剧、地面温度上升以及人类活动的影响。SO_2受太阳辐射影响较小,日变化趋势不明显。(3)污染物浓度风向分析表明,测点常规污染物主要来源于金山新城排放,但化工区废气排放对O_3浓度具有明显影响。

In order to provide theoretical basis and decision - making basis for the reasonable planning and layout of the industrial park in the future. We analyze the change trend of SO2, NO2 , O3 , PM10 and PM2.5 based on the atmospheric monitoring data from Shanghai Jinshan petrochemical site in 2014. Result：（ 1 ）The concentration of atmospheric pollutants has seasonal characteristics. SO2, NO2, PM10, PM2.5 with high concentration in Winter, low concentration in summer, O3 just in the opposite. （2） O3 has a single peak diurnal variation, and NO2, PM10, PM2.5 have two high values in one day. The photochemical reaction is intensified due to the enhancement of solar radiation, ground temperature rise and human activities. As less affected by solar radiation, SO2 daily change trend is not obvious. Concentration of pollutants in the wind indicate that major pollutants come from Jinshan Metro emissions. The emission of waste gas in chemical industry has a significant effect on the concentration of O3.