Monitoring of Metal Concentrations in Small Rivers of Krasnoyarsk City

Abstract

The purpose of this study is a comparative analysis of the results of monitoring of the concentrations of metals – total iron (Fetotal), copper (Cu), aluminium (Al), manganese (Mn), nickel (Ni) – in the surface waters of small rivers of Krasnoyarsk city. Materials and methods. Water sampling at selected observation sites was carried out during summer-autumn low water (at minimum fl ow and during rainfall fl oods) in 2020-2021. The content of metals (Fetotal, Cu, Al, Mn, Ni) was studied by atomic absorption spectrometry. Results and Discussion. For the period 2020-2021 in the water of the Cheremushka River, the average concentration of copper varies between 0.0014-0.0129 mg/dm3 ; manganese, 0.0099-0.2390 mg/dm3 ; total iron, 0.027-0.170 mg/dm3 ; in the Bugach River, copper: 0.0012-0.0163 mg/dm3 and manganese – 0.007-0.084 mg/dm3 ; in the Kacha River – copper: 0.0015-0.0032 mg/dm3 and manganese: 0.0060-0.0445 mg/dm3 . Conclusions. The results of the research showed that exceeding the maximum permissible concentration of fishery purpose in the Bugach River is most often observed for metals such as copper and manganese, in the Cheremushka River – copper, manganese and total iron; in the Kacha River – copper and manganese.