pollutant,Sun-Thu,Fri-AM,Fri-PM,Sat
NO,7.59,8.16,1.89,2.28
NO2,10.55,9.71,5.93,5.57
NOX,18.14,17.87,7.82,7.85
PM10,70.15,53.63,78.61,90.96
PM2.5,24.27,25.37,30.14,31.75