Heavy metals in water and sediments of the upper course of the river Crn Drim

Authors

  • Slavčo Hristovski Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 3, 1000 Skopje, Republic of North Macedonia
  • Maja Jordanova Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 3, 1000 Skopje, Republic of North Macedonia
  • Musa Musai Gymnasium Ibrahim Temo, Struga, Republic of North Macedonia
  • Violeta Boškovska Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 3, 1000 Skopje, Republic of North Macedonia
  • Katerina Rebok Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 3, 1000 Skopje, Republic of North Macedonia
  • Suzana Dinevska-Ќovkarovska Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 3, 1000 Skopje, Republic of North Macedonia
  • Ljupčo Melovski Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, Arhimedova 3, 1000 Skopje, Republic of North Macedonia

Keywords:

Crn Drim River, heavy metals, seasonal changes, water, sediment

Abstract

Crn Drim river is the single major outflow of the outstanding Ohrid lake. Surprisingly, data on the presence of heavy metals in waters and sediments for the whole Ohrid watershed are very scarce. This study presents the data on the concentration of heavy metals Fe, Mn, Zn, Cu, Cd and Pb in both waters and sediments collected along the river Crn Drim (including Globochica reservoir), from seven sampling sites in the Republic of North Macedonia. The concentrations of analyzed heavy metals show good water quality. As far as sediments are concerned the concentrations of heavy metals are low, with the exception of sampling points at the inflows of rivers Labunishka and Vevchanska. Seasonal dynamics of heavy metals’ concentration in waters was also analyzed. Most of the heavy metals showed the lowest concentration in the spring period due to the high water levels. The annual dynamics of Fe and Mn was an exception from this pattern which might be a result of mining activities in the Ohrid Lake watershed.

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Published

2019-12-31

How to Cite

Hristovski, S. ., Jordanova, M., Musai, M., Boškovska, V., Rebok, K., Dinevska-Ќovkarovska S., & Melovski, L. (2019). Heavy metals in water and sediments of the upper course of the river Crn Drim . Macedonian Journal of Ecology and Environment, 21(1-2), 73–78. Retrieved from https://mjee.org.mk/index.php/mjee/article/view/124