PM2.5 22_Mar 24_Mar 26_Mar 28_Mar 30_Mar 1_Apr Na 1017.1 1153.1 196.0 379.9 290.1 1075.8 Mg 1479.9 953.7 114.4 220.6 212.5 852.0 Al 6067.2 3296.2 1527.0 1234.1 928.7 1946.2 Si 18259.8 9863.0 4307.6 3337.3 2260.8 5707.0 P 6.0 null null 22.9 7.3 null K 3452.8 5390.8 1092.6 793.8 941.2 5738.2 Ca 4838.7 3799.3 2597.8 2178.9 1470.9 4425.8 Ti 452.2 232.5 75.4 68.3 63.6 162.6 V 8.7 5.0 2.0 1.6 1.5 3.7 Cr 32.7 6.3 2.0 3.0 2.4 6.1 Mn 162.4 140.2 31.2 45.1 50.2 189.8 Fe 5018.6 3027.1 503.2 801.7 778.6 2171.3 Cu 21.1 55.0 9.9 44.3 20.8 36.7 Zn 230.1 700.4 57.3 81.7 166.2 808.4 As 10.5 15.5 4.4 6.6 7.0 37.6 Rb 16.6 25.8 2.5 1.9 4.0 32.6 Cd 4.3 4.6 0.4 0.8 0.9 7.9 Sb 4.9 105.9 3.1 30.4 5.5 15.3 Cs 2.1 3.0 0.2 0.2 0.4 3.8 Ba 69.7 48.2 11.1 15.3 18.8 54.4 Ce 9.8 6.0 1.1 1.6 3.2 4.8 Pb 99.7 321.6 38.5 64.4 80.1 480.3