The paper presents data on the chemical composition of waters and bottom sediments in lakes variably affected by liquid wastes from facilities of the Olkon Joint-Stock Company in Olenegorst, Murmansk oblast, which mines and processes iron ores. Since Olkon started operating, the composition of water in nearby water bodies has underwent significant changes. The mineralization (TDS) and pH of the lacustrine waters have increased (to 100 mg/L and 7.6 respectively). The qualitative composition of the water has also changed (the water type has changed from hydrocarbonate to sulfate), as also have the proportions of the dominant cations. The waters of the lakes have enriched in nitrogen-group compounds. The \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{NO}}_{3}^{ - }$$\end{document} concentrations in some of the lakes are higher than the concentrations of the dominant ions (Na+, K+, and Cl–) recalculated into equivalent concentrations. The inflow of contaminants with the waste waters has suppressed biological productivity and reduced concentrations of organic compounds in the lacustrine waters. The waters of the lakes that received waste waters form the iron-producing facilities contain the highest Ni, Cu, Co, Al, and Sr concentrations, whereas the Fe concentrations are the lowest, which is reportedly explained by a decrease in the concentrations of organic compounds and an increase in pH of the lacustrine waters (and a corresponding decrease in the Fe solubility). The paper reports data on the speciation of metals in the lacustrine waters: Fe and Cu occur in them mostly in compounds with organic ligands Fe(III)–L and Cu(II)–L; Mn is contained as Mn(II)–\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{SO}}_{4}^{{2 - }}$$\end{document}/Cl–/OH– compounds; and Ni, Co, and Zn form compounds with hydroxyl groups Ni(II)–OH, Co(II)–OH, and Zn(II)–OH. Concentrations of heavy metals in the lacustrine bottom sediments depend on the dominant form of their occurrence in the waters. The surface layers of the bottom sediments are significantly enriched in heavy metals (Ni, Cu, Co, Cd, Pb, As, Hg, Fe, and Mn), which are tens of times higher than the background concentrations. The highest values of the contamination factor (Cf) and degree of contamination (Cd) were found in the lakes contaminated with waste waters from the facilities.

中文翻译：

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受北极钢铁生产企业影响的地区湖泊地球化学

该论文提供了湖泊中水和底部沉积物的化学成分数据，这些数据受到摩尔曼斯克州 Olenegorst 的 Olkon Joint-Stock Company 设施的液体废物的不同影响，该公司开采和加工铁矿石。自 Olkon 开始运营以来，附近水体中的水成分发生了重大变化。湖水的矿化 (TDS) 和 pH 值有所增加（分别增至 100 mg/L 和 7.6）。水的质量组成也发生了变化（水的类型从碳酸氢盐变成了硫酸盐），主要阳离子的比例也发生了变化。湖水富含氮族化合物。\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin} {-69pt} \begin{document}$${\text{NO}}_{3}^{ - }$$\end{document} 在一些湖泊中的浓度高于主要离子（Na+ 、K+ 和 Cl-) 重新计算为等效浓度。污染物随废水的流入抑制了生物生产力并降低了湖水中有机化合物的浓度。接收来自炼铁设施废水的湖泊的水含有最高的 Ni、Cu、Co、Al 和 Sr 浓度，而 Fe 浓度最低，据报道，这可以解释为有机化合物浓度的降低和湖水 pH 值的增加（以及铁溶解度的相应降低）。该论文报告了有关湖泊水中金属物种形成的数据：Fe 和 Cu 主要存在于具有有机配体 Fe(III)-L 和 Cu(II)-L 的化合物中；Mn 包含为 Mn(II)–\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{ upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{SO}}_{4}^{{2 - }}$$\end{document}/Cl–/OH–化合物；Ni、Co 和 Zn 与羟基 Ni(II)-OH、Co(II)-OH 和 Zn(II)-OH 形成化合物。湖底沉积物中重金属的浓度取决于它们在水域中的主要存在形式。底层沉积物表层显着富集重金属（Ni、Cu、Co、Cd、Pb、As、Hg、Fe、Mn），比背景浓度高数十倍。污染因子 (Cf) 和污染程度 (Cd) 的最高值出现在被设施废水污染的湖泊中。