Effect of Simulated Acid Mist on The Seedling Growth of Some Plants

Impact of acid mist on the growth of Eucalyptus sp. and Pongamia pinnata was studied. The height, number of leaves and circumference of the above species were badly affected by the acid mist. The biomass accumulation of Eucalyptus sp. and P. pinnata was less at pH 3.0 and 4.0, but slightly increased at pH 5.0 and 6.0 in P. pinnata only. The maximum dry biomass was found at pH 7.0. The leaf area of Eucalyptus sp. and P. pinnata was also reduced at all pH levels, except in P. pinnata at ph 5.0, where it showed some 12.2 percent increase over pH 7.0.