ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Pima County Department of Environmental Quality Air (pima.gov) and Air Now - US EPA (airnow.gov)
Note that the measurements for CO (carbon monoxide) and NO2 (nitrogen dioxide) are taken from the station: Rose Elementary, Pima County