Under the conditions of industrial pollution

Bioindication of Aerotechnogenic Pollution of Agricultural Landscapes Caused by the Activities of Industrial Hubs

The article provides the assessment of the levels of aerotechnogenic pollution caused by the emissions from stationary pollution sources of industrial agglomerations in Zhytomyr, taking into account climatic conditions that affect the dispersion and accumulation of pollutants in soils and vegetation cover of surrounding agricultural landscapes. The examination of dust accumulated on the surface of leaves showed that it contains high concentrations of Mn, Cr, Pb, Ni, and Cu. The bioindication method with the use of white-tip radishes was applied to estimate the extent of aerotechnogenic pollution. The results of the investigation testified to the high informativeness of the offered test objects. The indexes of soil saturation with heavy metals indicated the presence of intensive processes of their accumulation. As a consequence, this territory became unsuitable for agricultural production. The inhibition of growth of radish roots identified the toxicity level of the investigated technogenic substrates as medium and higher than average. Also, there is inverse close correlation relationship between the distance from the emission source and the soil phytotoxicity indicators in all the investigated directions.

Dynamics of Chlorine Content in Leaves of Woody Plants of Protection Forest Bands in the City of Zaporizhzhya

As a result of the activity of industrial enterprises, atmospheric air is being contaminated by gaseous pollutants. Such substances as chlorine and hydrogen chloride are considered to be harmful for both humans and plants. Vegetation is a universal filter that is able to combat the environmental pollution by industrial emissions with the help of appropriate technical facilities. The aim of this study is to analyze the level of accumulation of chlorine in the leaves of woody plants that grow in the area of forest plantations of sanitary protection zones of industrial enterprises. The objects of the study were the species of woody plants in the area of protective plantations of a number of enterprises in Zaporizhzhya: ZTMC, ZALК, ZABR, Zaporizhstal, Zaporizhzhya Ferroalloy Plant, Zaporizhvohnetryv, Ukrgrafit and Zaporizhtransformator. We established that during the vegetation period, a gradual accumulation of the element was the most intense in mature leaves, whose growth had already ceased. The maximum amount of chlorine was found at the end of the vegetation period. The concentration of the pollutant in leaves of woody plants in the area of sanitary protection zones of industrial enterprises is linearly proportional to the level of emissions of the pollutant into the atmosphere by a given enterprise. The largest coefficient of relative accumulation of chlorine in the leaves of such plants as Catalpa bignonioides, Acer negundo, Robinia pseudoacacia, Juglans regia, Populus alba, which can be used as information sites for the purpose of bioindication of atmospheric air pollution with chlorides, was established.