Variables | Cr | Cu | Fe | Mn | Pb | Zn | Cd |
---|---|---|---|---|---|---|---|
January | |||||||
 Cr | 1 | 0.069 | 0.371 | 0.070 | 0.256 | 0.199 | 0.169 |
 Cu | 0.069 | 1 | 0.734 | − 0.633 | − 0.444 | 0.099 | 0.307 |
 Fe | 0.371 | 0.734 | 1 | − 0.041 | − 0.231 | − 0.064 | 0.272 |
 Mn | 0.070 | − 0.633 | − 0.041 | 1 | 0.070 | − 0.265 | − 0.241 |
 Pb | 0.256 | − 0.444 | − 0.231 | 0.070 | 1 | − 0.066 | 0.107 |
 Zn | 0.199 | 0.099 | − 0.064 | − 0.265 | − 0.066 | 1 | 0.779 |
 Cd | 0.169 | 0.307 | 0.272 | − 0.241 | 0.107 | 0.779 | 1 |
April | |||||||
 Cr | 1 | − 0.267 | − 0.359 | − 0.336 | 0.971 | 0.312 | − 0.169 |
 Cu | − 0.267 | 1 | 0.576 | 0.710 | − 0.245 | − 0.124 | − 0.142 |
 Fe | − 0.359 | 0.576 | 1 | 0.823 | − 0.386 | 0.136 | − 0.559 |
 Mn | − 0.336 | 0.710 | 0.823 | 1 | − 0.397 | − 0.118 | − 0.500 |
 Pb | 0.971 | − 0.245 | − 0.386 | − 0.397 | 1 | 0.351 | − 0.081 |
 Zn | 0.312 | − 0.124 | 0.136 | − 0.118 | 0.351 | 1 | − 0.712 |
 Cd | − 0.169 | − 0.142 | − 0.559 | − 0.500 | − 0.081 | − 0.712 | 1 |
June | |||||||
 Cr | 1 | 0.168 | 0.019 | 0.070 | 0.717 | 0.125 | − 0.386 |
 Cu | 0.168 | 1 | − 0.327 | − 0.381 | − 0.199 | − 0.263 | − 0.287 |
 Fe | 0.019 | − 0.327 | 1 | 0.995 | − 0.063 | 0.662 | 0.398 |
 Mn | 0.070 | − 0.381 | 0.995 | 1 | 0.010 | 0.663 | 0.379 |
 Pb | 0.717 | − 0.199 | − 0.063 | 0.010 | 1 | 0.139 | − 0.026 |
 Zn | 0.125 | − 0.263 | 0.662 | 0.663 | 0.139 | 1 | 0.738 |
 Cd | − 0.386 | − 0.287 | 0.398 | 0.379 | − 0.026 | 0.738 | 1 |