空气质量预报
空气质量数据提供者: the Calidad del Aire | Junta de Castilla y León (jcyl.es) and the European Environment Agency (eea.europa.eu)
Note that the measurement for O3 (ozone) are taken from the station: Vega Sicilia, Valladolid and the measurement for CO (carbon monoxide) are taken from the station: Arco de ladrillo II, Valladolid