ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Wisconsin Department Of Natural Resources (airquality.wi.gov) and Air Now - US EPA (airnow.gov)
Note that the measurements for O3 (ozone) and SO2 (sulfur dioxide) are taken from the station: Madison-east, Wisconsin