| Viale Archimede, Bari (urban site) | San Nicola sport stadium, Bari (suburban site) | Viale King, Bari (urban site) | ||||||
---|---|---|---|---|---|---|---|---|---|
 | PC1 | PC2 | PC3 | PC1 | PC2 | PC3 | PC1 | PC2 | PC3 |
NOx | 0.14 | 0.84 | 0.01 | 0.90 | 0.02 | 0.02 | 0.09 | 0.84 | 0.04 |
Benzene | 0.75 | 0.06 | 0.13 | 0.07 | 0.77 | 0.13 | 0.70 | 0.14 | 0.14 |
Toluene | 0.75 | 0.09 | 0.09 | 0.53 | 0.18 | 0.12 | 0.84 | 0.09 | 0.04 |
CO | 0.67 | 0.23 | 0.00 | 0.48 | 0.29 | 0.10 | 0.30 | 0.43 | 0.15 |
PM10 | 0.06 | 0.01 | 0.93 | 0.06 | 0.12 | 0.82 | 0.08 | 0.05 | 0.86 |
Eigenvalues | 2.37 | 1.22 | 1.17 | 2.04 | 1.37 | 1.19 | 2.02 | 1.55 | 1.23 |
% variance explained | 47.3 | 24.5 | 23.4 | 40.9 | 27.5 | 23.9 | 40.5 | 31.1 | 24.7 |
 | Altamura, prov. of Bari (urban site) | Andria, prov. of Bari ( urban site) | Monopoli, prov. of Bari ( urban site) | ||||||
 | PC1 | PC2 | PC3 | PC1 | PC2 | PC3 | PC1 | PC2 | PC3 |
NOx | 0.84 | 0.03 | 0.11 | 0.87 | 0.11 | 0.01 | 0.91 | 0.00 | 0.03 |
Benzene | 0.22 | 0.10 | 0.66 | 0.33 | 0.47 | 0.17 | 0.68 | 0.19 | 0.05 |
Toluene | 0.34 | 0.27 | 0.31 | 0.24 | 0.61 | 0.13 | 0.05 | 0.01 | 0.95 |
CO | 0.89 | 0.00 | 0.09 | 0.86 | 0.12 | 0.01 | 0.90 | 0.03 | 0.02 |
PM10 | 0.01 | 0.94 | 0.05 | 0.01 | 0.06 | 0.93 | 0.02 | 0.96 | 0.01 |
Eigenvalues | 2.30 | 1.34 | 1.22 | 2.31 | 1.38 | 1.24 | 2.55 | 1.19 | 1.05 |
% variance explained | 46.0 | 26.8 | 24.5 | 46.1 | 27.6 | 24.8 | 51.1 | 23.9 | 21.0 |