Table 4 Ratios between the deposited concentrations of chemical compounds (for each source) evaluated according the two different approaches adopted to estimate the mass fractions of chemical compounds: size resolved mass fraction and constant mass fraction.
| Â | Candles | Incenses | Mosquito coils | Grilling bacon |
|---|---|---|---|---|
HMs | ||||
 As | – | – | 3.3 | 1.4 |
 Cd | – | – | 1.0 | 1.4 |
 Cr(VI) | – | – | 1.1 | 2.1 |
 Ni | – | – | 1.1 | – |
 Pb | 1.6 | 1.5 | 1.0 | 1.6 |
 Sb | 1.7 | 1.5 | 1.4 | 1.3 |
 Cu | 1.5 | 1.4 | 1.1 | 1.4 |
 Zn | 1.5 | 1.4 | 1.0 | 1.7 |
 Co | – | – | – | 2.3 |
 Mn | 1.2 | – | – | – |
 PAHs | ||||
 Acenaphthylene |  | 1.0 |  |  |
 Acenaphthene |  | 1.0 |  |  |
 Fluorene |  |  |  | 1.0 |
 Phenanthrene | 2.0 | 1.0 | 1.6 | 1.0 |
 Anthracene | 2.1 | 1.0 | 1.8 | 1.0 |
 Fluoranthene | 1.9 | 1.0 | 1.5 | 1.0 |
 Pyrene | 1.9 | 1.0 | 1.5 | 1.0 |
 Benzo(a)anthracene |  |  |  |  |
 Chrysene | 1.8 | 1.0 | 1.0 | 1.0 |
 Benzo(b)fluoranthene | 1.2 | 1.0 | 1.0 | 1.0 |
 Benzo(k)fluoranthene |  |  |  |  |
 Benzo(a)pyrene |  | 1.0 | 1.0 |  |
 Indeno(1,2,3-cd)pyrene |  |  |  |  |
 Dibenzo(a,h)anthracene |  |  |  |  |
 Benzo(g.h.i)perylene |  |  |  |  |
