S/N | Wave number (cm−1) | Functional group |
1 | 480.28 | (silicate)) |
2 | 617.22 | (sulfite ions), 1-nitropyrene |
3 | 1091.7 | (sulphate, bisulphate) |
4 | 1425.4 | NH4+ (ammonium) |
5 | 1616.35 | Aerosol salt |
6 | 2858.51 | CH3, CH2 and CH alkanes |
7 | 2924.09 | Aliphatic hydrocarbon |
8 | 3429.43 | Alcohol, phenol |
9 | 3699.47 | OH− |
10 | 3770.84 | C=O, OH− |