ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Calidad del Aire | Junta de Castilla y León (jcyl.es)
Note that the measurement for SO2 (sulfur dioxide) are taken from the station: La rubia II, Valladolid and the measurement for CO (carbon monoxide) are taken from the station: Renault II, Valladolid