Pollution with Cr6+ of Groundwater and Surface Water from the Industrial Dump Jugohrom - Jegunovce – the Republic of North Macedonia

Mihailovski, Stojan and Mircovski, Vojo and Ilijovski, Zlatko (2021) Pollution with Cr6+ of Groundwater and Surface Water from the Industrial Dump Jugohrom - Jegunovce – the Republic of North Macedonia. Rudarsko-geološko-naftni zbornik The Mining-Geological-Petroleum Engineering Bulletin.

Text Objaven Trud, RGNZ-Zagreb, 24.11'21.pdf Download (3MB)

Abstract

In order to investigate the pollution with hexavalent chromium (Cr6+) of the groundwater and surface water around the
industrial dump Jugohrom – Jegunovce, hydrogeological investigations were carried out during November 2019, where
16 samples of groundwater and 3 samples of surface water were taken. In most of the analyzed samples of groundwater
and surface water, the concentration of Cr6+ exceeds the maximal allowed concentrations (MAC) of Cr6+ (0.01 mg/l) according to the Macedonian and European standards in drinking water. The highest contamination with Cr6+ which is in
the range of 0.052 – 132.98 mg/l is registered near the dump in the shallow groundwater, i.e. in the unconfined aquifers.
Cr6+ pollution ranging from 0.017 to 0.041 mg/l has also been registered in some of the samples at artesian aquifers with
a sub-artesian level. Two tests were carried out on the surface water of the Vardar River, before and after the dump. A
sevenfold increase in Cr6+ concentration of 0.069 was observed after the dump. Cr6+ content of 725 mg/l was found in the
drainage of overflow water in the discharge. Pollution of the groundwater and surface water with Cr6+ is anthropogenic
and is a result of the operation of the Metallurgical Plant Jugohrom in the period from 1955 to 1994.

Item Type:	Article
Subjects:	Engineering and Technology > Other engineering and technologies
Divisions:	Faculty of Natural and Technical Sciences
Depositing User:	Gorgi Dimov
Date Deposited:	11 Feb 2022 08:41
Last Modified:	11 Feb 2022 08:41
URI:	https://eprints.ugd.edu.mk/id/eprint/29362

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