ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Alberta Environment and Sustainable Resource Development - Air Quality monitoring (alberta.ca)
Note that the measurement for SO2 (sulfur dioxide) are taken from the station: Calgary Southeast, Alberta