东北地区-大连臭氧浓度分布与影响因素研究

随着经济社会的发展,人们对环境质量更加重视,光化学烟雾成为影响城市环境空气质量的重要因素。利用东北地区大连市全年臭氧监测的时间浓度,对臭氧污染的浓度分布特征,时间以及季节变化特征进行了分析。结果表明:臭氧浓度变化受太阳辐射强度和气温的影响明显,呈单峰型变化,臭氧浓度季节变化趋势明显。春、夏季节臭氧浓度较高,秋季臭氧浓度次之,臭氧与大气中的NO、NO2、CO、VOCs等前体物的浓度、太阳辐射的强度以及CO的浓度都有不同程度的相关性。

Correlation Analysis on Surface Ozone Concentration and its Precursor Compounds in Dalian

With the development of economy and society, people pay more attention to environmental quality. Photochemical smog has become an important factor affecting the air quality of the urban environment. This study uses the whole - year monitoring data for ozone concentration in Dalian to analyze the overall distribution of ozone pollution, as well as time and seasonal variations characteristics. The results showed that changes in ozone concentration and temperature affected the intensity of solar radiation, showed a single peak, and seasonal variations of ozone concentration was evident. Spring and summer high ozone concentrations, ozone concentration in autumn, followed by the concentration of ozone and atmospheric NO, NO2, CO, VOCs and other precursors. The intensity of solar radiation and the concentration of CO have different degrees of relevance.