Exposures | DMPs | DMRs | Pathways |
---|---|---|---|
PM2.5 components | |||
 Br | 58 | 34 | 2 |
 Ca | 1 | 5 | 16 |
 Cu | 13 | 10 | 3 |
 EC | 0 | 6 | 8 |
 Fe | 6 | 6 | 2 |
 K | 11 | 18 | 9 |
 Ni | 8 | 22 | 4 |
 NO3− | 15 | 3 | 46 |
 OC | 2 | 2 | 6 |
 Pb | 0 | 3 | 2 |
 Si | 10 | 1 | 7 |
 SO42− | 7 | 3 | 3 |
 V | 5 | 11 | 27 |
 Zn | 7 | 10 | 8 |
Sources | |||
 Source 1 (biomass burning) | 10 | 0 | 8 |
 Source 2 (all traffic) | 8 | 5 | 0 |
 Source 3 (secondary particles) | 19 | 5 | 2 |
 Source 4 (coal burning and heavy fuel oil combustion) | 14 | 7 | 7 |