Table 10 Correlation matrix between the APTI values and some studied parameters
From: Roadside air pollution in a tropical city: physiological and biochemical response from trees
| Biochemical parameters | Arterial road I | Arterial road II | Arterial road III | Control site |
|---|---|---|---|---|
| APTI | APTI | APTI | APTI | |
| AA | 0.807 | 0.250 | 0.684 | 0.552 |
| TCHL | − 0.597 | 0.907 | 0.377 | 0.953* |
| pH | − 0.140 | 0.125 | 0.276 | − 0.121 |
| RWC | 0.157 | − 0.986* | − 0.896 | 0.322 |