We present a high-resolution air quality study over São Paulo, Brazil with the EURopean Air Pollution Dispersion - Inverse Model (EURAD-IM) used for the first time over South America simulating detailed features of aerosols. Modeled data are evaluated with observational surface data and a Lidar. Two case studies in 2016 with distinct meteorological conditions and pollution plume features show transport (i) from central South America, associated to biomass burning activities, (ii) from the rural part of the state of São Paulo, (iii) between the metropolitan areas of Rio de Janeiro and São Paulo (MASP) either through the Paraíba Valley or via the ocean, connecting Brazil's two largest cities, (iv) from the port-city Santos to MASP and also from MASP to the city Campinas, and vice versa. A Pearson coefficient of 0.7 was found for PM10 at MASP CENTER and EURAD-IM simulations vary within the observational standard deviation, with a Mean Percentual Error (MPE) of 10%. The model's vertical distributions of aerosol layers agree with the Lidar profiles that show either characteristics of long-range transported biomass burning plumes, or of local pollution. The distinct transport patterns that agree with satellite Aerosol Optical Death and fire spot images as well as with the ground-based observations within the standard deviations, allows us exploring patterns of air pollution in a detailed manner and to understand the complex interactions between local to long-range transport sources.

我们通过在南美首次使用的“欧洲空气污染扩散-逆模型”（EURAD-IM），对巴西圣保罗进行了高分辨率的空气质量研究，以模拟气溶胶的详细特征。使用观测表面数据和激光雷达评估建模数据。2016年的两个案例研究具有明显的气象条件和污染羽状特征，表明运输（i）来自南美洲中部与生物质燃烧相关的运输;（ii）来自圣保罗州农村地区的运输;（iii）大都市区之间的运输里约热内卢和圣保罗（MASP）穿过帕拉伊巴山谷或通过海洋，将巴西的两个最大城市连接起来（iv）从港口城市桑托斯到MASP，也从MASP到坎皮纳斯，反之亦然。皮尔逊系数为0。在MASP中心发现PM10为7，EURAD-IM模拟在观察标准偏差内变化，平均百分误差（MPE）为10％。该模型的气溶胶层垂直分布与激光雷达剖面相吻合，后者显示了远距离运输的燃烧生物羽的特征或局部污染。独特的传输模式与卫星气溶胶光学死亡和火斑图像以及标准偏差内的地面观测结果相吻合，这使我们能够详细探索空气污染的模式，并了解本地到长期的复杂相互作用。范围的运输来源。气溶胶层的垂直分布与激光雷达剖面吻合，后者显示了远距离运输的燃烧烟羽的生物特征或局部污染。独特的传输模式与卫星气溶胶光学死亡和火斑图像以及标准偏差内的地面观测结果相吻合，这使我们能够详细探索空气污染的模式，并了解本地到长期的复杂相互作用。范围的运输来源。气溶胶层的垂直分布与激光雷达剖面吻合，后者显示了远距离运输的燃烧烟羽的生物特征或局部污染。独特的传输模式与卫星气溶胶光学死亡和火斑图像以及标准偏差内的地面观测结果相吻合，这使我们能够详细探索空气污染的模式，并了解本地到长期的复杂相互作用。范围的运输来源。