Air quality data from the LIFE+RESPIRA project in Pamplona, Spain: NO2 in 2015 (21h UTC) (interpolated PNG)

PNG image representing interpolated air quality data from the LIFE+RESPIRA project (http://www.liferespira.eu/) in Pamplona, Spain, with measures of nitrogen dioxide during 2015, aggregated by hour (21h UTC).本PNG图像展示了源自西班牙潘普洛纳LIFE+RESPIRA项目（http://www.liferespira.eu/）的插值空气质量数据，对应2015年的二氧化氮监测值，按小时（协调世界时21时）进行聚合。