ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Washington State Department of Ecology (ecy.wa.gov) and Air Now - US EPA (airnow.gov)
Note that the measurements for PM2.5 (fine particulate matter), O3 (ozone), CO (carbon monoxide) and NO2 (nitrogen dioxide) are taken from the station: 10th and Weller, Seattle, Washington and the measurement for SO2 (sulfur dioxide) are taken from the station: Beacon Hill, Seattle, Washington