Table 2 Pearson correlation coefficients (R) and level of significance (p) for DTT activity with different PM species
From: Relationship between redox activity and chemical speciation of size-fractionated particulate matter
Species | R | p |
|---|---|---|
EC | 0.26 | 0.30 |
OC | 0.12 | 0.64 |
OC (excluding two unrealistic values) | 0.87* | < 0.01 |
NO3 | -0.45 | 0.06 |
SO4 | -0.08 | 0.75 |
Metals and elements | -0.19 | 0.45 |
PAH 202–228 (FLU, PYR, BaA, CHR) | 0.57* | 0.04 |
PAH 252 (BkF, BbF, BaP) | 0.92* | < 0.01 |
PAH 276–278 (BghiP, IcdP, dBahA) | 0.95* | < 0.01 |