TOPOGRAPHICAL SURVEYS NEEDED FOR THE ASSESSMENT OF OIL AND SALT WATER POLLUTION OF A PASTURE
MÄDÄLINA CRISTINA MARIAN 1, MONICA ANGELA NEBLEA 2, DANIELA GIOSANU 1 1. University of Pitesti, Faculty of Sciences, Physical Education and Informatics, Department Environmental Engineering and Applied Sciences, Targu din Vale Street, No.1, Pitesti, 110040, Romania, e-mail: madalina.marian@yahoo.com; giosanu@yahoo.com;
2. University of Pitesti, Faculty of Sciences, Physical Education and Informatics, Department of Natural Sciences, Targu din Vale Street, No.1, Pitesti, 110040, Romania, e-mail: monica_neb@yahoo.com.
The paper proposes an assessment of polluted land with oil and salt water mixed, having as primarily aim the analysis of a real identification and more precise of the pollution magnitude. The necessity of this study came from the antithesis of a real situation where the oil pollution of an agricultural land used as a pasture seems, at first sight, to have a much larger dimension compared to the results obtained with the use of precision instruments. The rigorous identification of surfaces of wells quadrate, current access roads, underground and above-ground pipelines, surface erosion or deep erosion has made a clear difference between surface degradation through normal operation of crude oil and an excessive, inappropriate activity. Using an equipment and technique with high accuracy of the measurement, the field phase consisted in planimetric and levelling measurements and the collection of soil sampling and stagnant water sampling on the soil surface, from precipitations. The chemical and physical measurements were done in laboratory. In the office work the surveys were processed, the obtained data were systematized and the results were interpreted. The analysis showed that the salinity was the main and the most severely limitative factor in lowering of fertility by slowing the development or even the extinction of microorganims. Although the fodder value of the lawn has been found to be low, however, the grazing in the studied area is practiced. The initial hypothesis concerning the size of the affected surface emphasized an exceeding of the limit of exploitation.
