Evaluation of particulate pollution around the lime kilns and its impact on plants.
Asha Rajvanshi, Srivastava M. M.
Author Affiliation: Department of Botany, DAV College, Dehra Dun 248?001, India.
Environment and Ecology 9 : 141-144
Abstract : The results from a site 3 km north of Dehra Dun, Uttar Pradesh, are presented. The rate of fall of both settleable and suspended particulates had peak values in the summer months. Spectral analysis showed that particulate lime was mainly composed of metallic oxides. Injurious effects were recorded for a number of plant species growing around the industrial area, namely Psidium guajava [guava], Citrus maxima [pummelo], Chrysanthemum coronarium, Bougainvillea glabra, Murraya koenigii, Nerium odorum [N. oleander], Litchi chinensis, Triticum aestivum [wheat] and Mangifera indica [mangoes]. It is suggested that the particulate lime deposition alters the quality and quantity of light incident on the leaf surface and thus affects chlorophyll synthesis, photosynthesis and growth.