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MONITORING THE QUALITY PARAMETERS OF GREEN LEAVES IN GALATI CITY
Abstract
Air pollution causes plant injury such as burning leaf margins or tips, delayed grown, root damage and premature leaf drop. An increased pollution also influences the leaf water content, the amount of chlorophyll in the plant and the ability to photosynthesize. In this study we have investigated four types of trees in six areas of Galati. Selected areas are scattered throughout the city and have different degrees of pollution. Samples were taken at regular intervals from the start burgeoning until maturity. The trees studied were: cherry plum, poplar, willow and cherry. The leaf relative water content (RWC), surface leaf and chlorophyll content were inferred. Using a Specord 210 UV-VIS Spectrophotometer, the reflectance spectra of all samples were plotted because the red edge parameters can be used as an indicator of chlorophyll content. In less polluted areas, not just the amount of chlorophyll in the leaf was higher, but also the water content. Among the studied trees, the poplar and willow leaves show the highest values of the RWC index. The largest amounts of chlorophyll were recorded for cherry plum and cherry leaves.
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