Abstract

Spatiotemporal dynamics of concentrations of dissolved forms of copper and zinc in the water of the lower Don River was studied and compared with changes in mineralization, temperature, and concentrations of major ions, suspended matter, O₂, NO\(_2^-\), NO\(_3^-\), NH\(_4^+\), PO\(_4^{3-}\), pH, BOD₅, and COD. For all periods, there is a steady excess of the maximum permissible concentration standards for dissolved copper, while the concentrations of zinc are mostly within the normal range. Maximum concentrations of copper and zinc are recorded on the river reach adjacent to the big industrial city of Rostov-on-Don. Minimum concentrations of copper and zinc are registered in the spring-summer period, maximum ones were recorded after the spring-summer and summer-autumn phytoplankton outbursts. The formation of the levels of both metals in the Don River water is significantly influenced by anthropogenic factors and processes, while the pattern of their intraannual dynamics is mainly due to natural factors.

中文翻译：

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顿河下游水中铜和锌浓度的时空动态

摘要

研究了顿河下游水中溶解形式的铜和锌浓度的时空动态，并与矿化、温度和主要离子、悬浮物、O ₂、NO \(_2^-\)浓度的变化进行了比较, NO \(_3^-\) , NH \(_4^+\) , PO \(_4^{3-}\) , pH, BOD ₅，和 COD。在所有时期，溶解铜的最大允许浓度标准都稳定超过，而锌的浓度大多在正常范围内。在大工业城市顿河畔罗斯托夫附近的河流中记录了铜和锌的最高浓度。铜和锌的最低浓度出现在春夏时期，最高浓度出现在春夏和夏秋浮游植物爆发后。顿河水中两种金属含量的形成受到人为因素和过程的显着影响，而它们的年内动态模式主要是由于自然因素。