Vsebnost potencialno toksičnih elementov na izbranih njivskih površinah v MO Celje

Mrak, Anja (author), Zupan, Marko (mentor)

V diplomskem delu smo preverili vsebnosti potencialno toksičnih elementov na izbranih njivskih površinah v občini Celje. Odvzem vzorcev smo izvedli na 8 njivah, kjer smo odvzeli od 3 do 21 površinskih vzorcev na posamezni njivi, skupno 93 vzorcev. Meritve smo izvedli v laboratoriju z metodo rentgenske fluorescenčne spektrometrije (XRF). Rezultati so pokazali, da je vsebnost elementov v tleh različna in lahko presega tudi geokemično ozadje Slovenije in nekatere normativne vrednosti. Najmanjše koeficiente variacije smo izračunali za Ni (8,02%), Cu (14,95%) in As (16,1%). Največje koeficiente variacije smo izračunali za Cd (23,41%), Zn (28,46%) in Pb (31,99%), ki so parametri onesnaževanja tal v občini Celje. Povprečna koncentracija Zn je največkrat presegla kritično imisijsko vrednost, koncentraciji Pb in Cd pa sta pogosto presegli opozorilno vrednost. Izmerjene koncentracije Zn na posameznih mestih vzorčenja so bile v velikem razponu (od 178,67 mg/kg do 767,98 mg/kg). Podobno velja tudi za ostala dva potencialno toksična elementa: izmerjene koncentracije Pb so bile od 57,74 mg/kg do 125,75 mg/kg in Cd od 5,96 mg/kg do 7,97 mg/kg.

• Language: Slovenian
• Keywords: onesnaženost tal, težke kovine, Celje, njivske površine, kmetijska zemljišča
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Year: 2024
• PID: 20.500.12556/RUL-159726
• COBISS.SI-ID: 202422275
• Publication date in RUL: 20.07.2024

Secondary language

• Language: English
• Title: jeziku: Content of potentially toxic elements on selected arable areas inMunicipality of Celje

Abstract

In this diploma thesis, we checked the content of potentially toxic elements on selected arable land in the municipality of Celje. Samples were taken from 8 fields, where from 3 to 21 surface samples were taken from each field, a total of 93 samples. The measurements were carried out in the laboratory using the X-ray fluorescence spectrometry (XRF) method. The results showed that the content of elements in the soil is different and may even exceed the geochemical background of Slovenia and some normative values. The smallest coefficients of variation were calculated for Ni (8.02%), Cu (14.95%) and As (16.1%). The largest coefficients of variation were calculated for Cd (23.41%), Zn (28.46%) and Pb (31.99%), which are soil pollution parameters in the municipality of Celje. The average concentration of Zn most often exceeded the critical immission value, while the concentrations of Pb and Cd often exceeded the warning value. The measured concentrations of Zn at individual sampling sites were in a wide range (from 178.67 mg/kg to 767.98 mg/kg). The same applies to the other two potentially toxic elements: the measured concentrations of Pb were from 57.74 mg/kg to 125.75 mg/kg and Cd from 5.96 mg/kg to 7.97 mg/kg.

• Keywords: soil pollution, heavy metals, Celje, arable land, agricultural land