ENCOLOGY, 9(7) : 21-25, 1994.
D. B. BORALKAR
Central Pollution Control Board, CBD-Cum Office Complex, Delhi -110 032.
Table 6 : Plant species suitable for growing along the effluent drains.
| S. N. | Botanical Name | Habit |
|---|---|---|
| 1 | Albizzia lebbek | Tree |
| 2 | Casia fistula | -do- |
| 3 | Anthocephalus cadamba | -do- |
| 4 | Eucalyptus sp. | -do- |
| 5 | Ficus glomerata | -do- |
| 6 | Delonix regia | -do- |
| 7 | Pithecelobium duice | -do- |
| 8 | Phyllanthus emblica | -do- |
| 9 | Polyalthia longifolia | -do- |
| 10 | Leucaena leucocephala | Shrub |
| 11 | Alstonia scholoris | -do- |
| 12 | Nerium indicum | -do- |
| 13 | Bougainvillea spectabilis | -do- |
| 14 | Ipomaea cornea | -do- |
| 15 | Duranta plumieri | -do- |
The pollutent injury to plants may be reduced by the use of certain chemical agents. A wide range of compounds are known to have protective ability.
0.02M solution of potassium ascorbate (C6H7O6) may be sprayed once after 2-3 weeks of plantation. Potassium ascorbate is known antidote to SO2 phyto-toxicity in initial stages. Root feeding of calcium and potassium salts of ascorbic acid also reduce air pollution injury.
Foliar application of 1% urea solution once in a month increases the air pollution tolerance in the plants.
Recently M/s Hindustan Lever have started marketing a chemical namely PHOTOSYNTH which helps in photosynthesis of plants. This may also be used.
The green belts are required to establish for different specific requirements of the area and type of pollution prevailing. Based on the studies carried out in Indian conditions plant species have been categorized for their suitability for plantation of green belts as follows :- (Contd. on page 25)