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Title: STATISTICAL STUDY ON POLLUTION OF SURFACE WATERS IN BUCHAREST
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STATISTICAL STUDY ON POLLUTION OF SURFACE WATERS IN BUCHAREST
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1314-2704
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English
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17
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52
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In this study are presented and analyzed data resulted from monitoring of ions concentration: NO??, NO?? and PO??? in surface waters from Bucharest during 2013 ? 2016 period. The concentrations of these ions are an important indicator of the degree of eutrophication of lakes. The monitored surface waters are formed of 12 lakes rezulted by systematizing of Colentina River. The sources of pollution with nitrates and phosphates are coming from economic activities around lakes, from urban transport, and the initial pollution of the river Colentina. The statistical analysis of monitoring concentrations data of these ions, showed that they form time series. The main properties of these time series were determined. For all the lakes, time series data show the linear trend and seasonality. Based on the obtained data, a method for modeling the time series was proposed to forecast the evolution of the pollution of those surface waters. Another direction of data analysis aimed to establish whether there is a significant statistical difference among the concentrations of these pollutants in the surface waters analyzed. In this regard, the t test - two samples assuming equal variances from Excel was performed and the results showed that the pollution degrees of the lakes are similar, except for water surfaces from the beginning and the end of the lake chain. For these lakes, besides the mentioned sources, the agricultural activity also contributes to their pollution.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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843-850
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29 June - 5 July, 2017
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website
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cdrom
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4133
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Surface water pollution; eutrophication; statistical analysis; nitrate; phosphate
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