Case studies on summertime measurements of O3, NO2, and SO2 with a DOAS system in an urban semi-industrial region in Athens, Greece
Case studies on summertime measurements of O3, NO2, and SO2 with a DOAS system in an urban semi-industrial region in Athens, Greece
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DOI：
10.1007/s10661-013-3134-2
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发表时间：
2013-09-01
影响因子：
3
通讯作者：
Viras, Loisos G.
中科院分区：
文献类型：
--
作者：
Psiloglou, Basil E.;Larissi, Ioanna K.;Viras, Loisos G.
本研究的目的是分析 2008 年和 2009 年温暖时期（7 月至 9 月）期间比雷埃夫斯技术教育学院校园内运行的差分光学吸收光谱 (DOAS) 系统测量到的 SO2、NO2 和 O-3 浓度与当时的气象条件的关系。 DOAS系统在阿提卡盆地西部污染严重的地区连续运行，测量主要污染物（O-3、NO2和SO2）以及芳香烃物质（苯、甲苯和二甲苯）的浓度水平。据分析，该测点SO2浓度较高，可能与该测点的特点有关。道路的接近程度和局部循环只是影响二氧化氮和地表臭氧等污染物浓度监测浓度水平的一些因素。研究结果为存在一种大气现象提供了证据，这种现象在周末产生较高的臭氧浓度，尽管臭氧前体浓度较低。这种现象被称为周末效应。
The objective of this study is to analyze the concentrations of SO2, NO2, and O-3 measured by a Differential Optical Absorption Spectroscopy (DOAS) system that was operating at the campus of Technological Education Institute of Piraeus during 2008 and 2009 warm periods (July to September) in relation to the prevailing meteorological conditions. The DOAS system was operating in a particularly polluted area of the West part of Attica basin on a continuous basis, measuring the concentration levels of the main pollutants (O-3, NO2, and SO2) as well as aromatic hydrocarbon substances (benzene, toluene, and xylene). According to the analysis, the SO2 concentration levels at this measuring site are rather high and this may be attributed to the characteristics of this measuring site. Proximity of roadways and local circulation are just some of the factors that can affect the concentration levels of monitoring of pollutant concentrations such as NO2 and surface ozone. The results provide evidence for the occurrence of an atmospheric phenomenon that produces higher ozone concentrations during weekends despite lower concentrations of ozone precursors. This phenomenon is known as the weekend effect.