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首页> 外文期刊>Atmospheric chemistry and physics >Presenting SAPUSS: Solving Aerosol Problem by Using Synergistic Strategies in Barcelona, Spain
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Presenting SAPUSS: Solving Aerosol Problem by Using Synergistic Strategies in Barcelona, Spain

机译：提出SAPUSS：在西班牙巴塞罗那采用协同策略解决气溶胶问题

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This paper presents the summary of the key objectives, instrumentation andlogistic details, goals, and initial scientific findings of the EuropeanMarie Curie Action SAPUSS project carried out in the western MediterraneanBasin (WMB) during September–October in autumn 2010. The key SAPUSSobjective is to deduce aerosol source characteristics and to understand theatmospheric processes responsible for their generations and transformations– both horizontally and vertically in the Mediterranean urban environment.In order to achieve so, the unique approach of SAPUSS is the concurrentmeasurements of aerosols with multiple techniques occurring simultaneously insix monitoring sites around the city of Barcelona (NE Spain): a main roadtraffic site, two urban background sites, a regional background site and twourban tower sites (150 m and 545 m above sea level, 150 m and 80 m aboveground, respectively). SAPUSS allows us to advance our knowledge sensibly ofthe atmospheric chemistry and physics of the urban Mediterranean environment.This is well achieved only because of both the three dimensional spatialscale and the high sampling time resolution used. During SAPUSS differentmeteorological regimes were encountered, including warm Saharan, coldAtlantic, wet European and stagnant regional ones. The different meteorologyof such regimes is herein described. Additionally, we report the trends ofthe parameters regulated by air quality purposes (both gaseous and aerosolmass concentrations); and we also compare the six monitoring sites. Highlevels of traffic-related gaseous pollutants were measured at the urbanground level monitoring sites, whereas layers of tropospheric ozone wererecorded at tower levels. Particularly, tower level night-time average ozoneconcentrations (80 ± 25 μg m−3) were up to doublecompared to ground level ones. The examination of the vertical profilesclearly shows the predominant influence of NOx on ozoneconcentrations, and a source of ozone aloft. Analysis of the particulatematter (PM) mass concentrations shows an enhancement of coarse particles(PM2.5–10) at the urban ground level (+64%, average11.7 μg m−3) but of fine ones (PM1) at urban tower level(+28%, average 14.4 μg m−3). These results showcomplex dynamics of the size-resolved PM mass at both horizontal and verticallevels of the study area. Preliminary modelling findings reveal anunderestimation of the fine accumulation aerosols. In summary, this paperlays the foundation of SAPUSS, an integrated study of relevance to many othersimilar urban Mediterranean coastal environment sites.
机译：本文概述了2010年9月至10月在西地中海盆地（WMB）进行的EuropeanMarie Curie Action SAPUSS项目的关键目标，仪器和物流细节，目标以及初步的科学发现。气溶胶源的特征，并了解在地中海城市环境中水平和垂直方向造成气溶胶生成和转换的大气过程。为了实现这一目标，SAPUSS的独特方法是在多种监测技术中同时进行气溶胶的同时测量巴塞罗那市（西班牙东北部）：主要道路交通站点，两个城市背景站点，一个区域背景站点和两个城市塔楼站点（海拔分别为150 m和545 m，地上150 m和80 m）。 SAPUSS使我们能够合理地提高我们对地中海城市环境的大气化学和物理知识的认识，仅由于三维空间尺度和高采样时间分辨率，才能实现这一目标。在SAPUSS期间，遇到了不同的气象体制，包括温暖的撒哈拉沙漠，寒冷的大西洋，湿润的欧洲和停滞的区域性气候。本文描述了这种方案的不同气象。此外，我们报告了受空气质量目的（气态和气溶胶浓度）调节的参数趋势;我们还比较了六个监视站点。在城市地面监测点测量了与交通有关的气态污染物的高水平，而在塔级记录了对流层臭氧层。特别是，塔式夜间夜间平均臭氧浓度（80±25μgm -3 ）高达地面水平的两倍。垂直剖面的检查清楚地显示了NO x 对臭氧浓度的主要影响，以及高空臭氧的来源。对颗粒物质量浓度的分析显示，城市地面水平上的粗颗粒物（PM 2.5-10 ）有所增加（+ 64％，平均为11.7μgm −3 ），但在城市塔楼水平时为优良（PM 1 ）（+ 28％，平均14.4μgm -3 ）。这些结果显示了在研究区域的水平和垂直方向上，尺寸分辨的PM物质的复杂动力学。初步的建模发现揭示了对细小累积气溶胶的低估。总之，本文奠定了SAPUSS的基础，这是与许多其他相似的地中海沿岸城市环境相关性的综合研究。

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