ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: Air Quality New Brunswick - Environment and Local Government of New Brunswick (elgegl.gnb.ca)
Note that the measurements for SO2 (sulfur dioxide) and CO (carbon monoxide) are taken from the station: Castle Street, Saint John, NewBrunswick