ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Alberta Environment and Sustainable Resource Development - Air Quality monitoring (alberta.ca)
Note that the measurement for CO (carbon monoxide) are taken from the station: Edmonton East, Alberta