| Plants | Location | Mean | |
| Urban area | Rural area | ||
| Eucalyptus leaves | 25.72 ± 0.33 | 12.67 ± 0.34 | 19.20 |
| Olea leaves | 21.70 ± 0.62 | 14.76 ± 0.48 | 20.73 |
| Zizphus leaves | 10.67 ± 0.38 | 6.69 ± 1.13 | 8.18 |
| Conocarpus leaves | 4.60 ± 0.50 | 3.59 ± 0.56 | 4.09 |
| Mean | 15.67 | 9.42 |
|