Environmental aspects of the evaluation of the total pollution of soils with heavy metals in the coastal zone of the Caspian Sea at cape peschany

Abstract

This study is aimed to analyze the total contamination of the soil of the CAPE with heavy metals and metalloids in the area, the ferry complex and farms on the Sandy Cape. During the survey of the coastal zone of Cape Peschanyi, the route method with the laying of 7 trial plots (TP) with background TP-7 was used. Total content of the heavy metals (HM) was determined by a laboratory spectrophotometer of HACH DR-2400 (USA). Studies of the ecological state of the coastal zone of Cape Sandy, after the introduction of an international multimodal transport hub that provides access to Europe, are the first and allowed us to identify the degree of anthropogenic transformation. The availability of farms testifies to the suitability of the Cape's soils for cultivation and crops. The assessment of the ecological state of the soils of the ferry complex, "melon" farms, and the territory of the national reserve with a conservation status is relevant and timely. The results of the analysis of the content of heavy metals and metalloid allowed us to identify pollutants that affect melons. According to the results of calculations, on P-2, ST=16.5 the level of pollution is moderately dangerous, on the other PP, within the acceptable level. The range of a variation less than 1, only for hexavalent chrome Cr6+, is bound to the fact that chrome is easily mobilized in alkaline soils. Statistical processing of the results by Statistica 10 had shown that the Kruskal-Wallis criterion is statistically significant for the elements Cr, Cd, Cu and Co.

Assessment of the Degree of Soil Contamination of the Coastal Zone of the Caspian Sea in the Area of Aktau Suburb

“…In view of this, it is necessary to carry out highquality predicted work based on geo-ecological monitoring in order to preserve the resources of the Caspian Sea and the coastal zone, these methods will give not only a point assessment, but also a spatial picture of the ecological state of the Aktau territories [4,5].…”