Prisutnost dušikovih spojeva u podzemnoj vodi priljevnog područja crpilišta Strmec

undergraduate thesis

• Title (english): The presence of nitrogen compounds in the groundwater of the inflow area of the Strmec well field
• Author: Ana Glagolić
• Mentor: Zoran Kovač (mentor)
• Committee member: Zoran Kovač (predsjednik povjerenstva)
• Committee member: Hana Fajković (član povjerenstva)
• Committee member: Maja Martinuš (član povjerenstva)
• Granter: University of Zagreb; Faculty of Science; (Department of Geology); Zagreb
• Defense date and country: 2024-09-19, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Geology

Abstract

U ovom završnom radu definirana je prisutnost dušikovih spojeva u priljevnom području crpilišta Strmec. Određeno je da su nitrati dominantna forma dušikovih spojeva u podzemnoj vodi crpilišta Strmec. Također, testirano je koji parametri utječu na koncentracije nitrata u podzemnoj vodi i koliki je antropogeni utjecaj na koncentracije nitrata. Statističke metode korelacije i regresije korištene su za definiranje odnosa između promatranih varijabli, a rezultati su prikazani dijagramima izrađenim u MS Excelu i softveru Tibco Statistica (14.0.0.15). Dobiveni rezultati kod dijagrama raspršenja prikazuju da se povišenjem električne vodljivosti povisuje i koncentracija nitrata, nešto manje kod otopljenog kisika u vodi i još manje kod pH vrijednosti, a kod povišenja temperature se smanjuje. Izvori onečišćenja i povišenja koncentracija nitrata mogu biti utjecaj poljoprivrede, nepravilno odlaganje otpada ili neki drugi čimbenici.

Abstract (english)

In this Final Seminar, statistical methods were used to determine how different parameters affect the presence of nitrogen compounds in the inflow area of the Strmec well field. It was determined that nitrates are the dominant form of nitrogenous compounds in the underground water of the Strmec well field. It was tested which parameters affect nitrate concentrations in groundwater and how much anthropogenic influence there is on nitrate concentrations. Different piezometers capture different depths of the alluvial aquifer, and the concentrations of parameters and nitrates change. Correlation and regression statistical methods were used to determine the relationship between the observed variables and the results were presented with diagrams created in MS Excel and Tibco Statistica software (14.0.0.15). The obtained results in the scatter diagrams show that the increase in electrical conductivity also increases the concentration of nitrates, slightly less in the case of dissolved oxygen in water and even less in the pH value, and decreases in the case of an increase in temperature. Sources of pollution and increased nitrate concentrations can be the influence of agriculture, improper disposal of waste or some other factors.

• Keywords: nitrati; korelacija; regresija; onečišćenje; podzemna voda
• Keywords (english): nitrates; correlation; regression; pollution; groundwater
• Language: croatian
• URN:NBN: urn:nbn:hr:217:075076
• Study programme: Title: Geology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) geologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) geologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-07 07:36:42