The article presents the first data on the study of a wide range of chemical elements in the water and sediments of small lakes located in the Arctic Zone of Russia. Among the selected objects are two lakes located in the urbanized areas. As a result, the sediments of all lakes were classified by the ratio of the main elements and the total content of organic matter. The concentration coefficients of all elements were calculated taking into average concentrations of different elements in the continental crust and the potentially toxic elements in the sediments of the background area. Analyzing sediment cores made it possible to evaluate the historical dynamics of the behavior of some metals and metalloids (Pb, Cd, Sb, Sn, Bi, Ni, Cu) in the aquatic environment during the industrial era, both in urbanized territories and in the background regions of the Arctic. The main natural and anthropogenic factors of the formation of geochemical anomalies in the concentrations of different elements, including potentially toxic ones, in the sediments studied, were identified. In urban areas, the main sources of metals entering the lake environment are emissions of the copper–nickel, thermal power plants, coal port, and an incineration plant. For all lakes, the pollution level of objects was estimated by calculating the geo-accumulation index and pollution load index. The most polluted lakes are the lakes of urban areas of the Arctic, the lakes of the background territories are characterized by a moderate level of pollution or no pollution.

本文介绍了有关俄罗斯北极地区小湖的水和沉积物中广泛的化学元素研究的第一批数据。在选定的对象中，有两个位于市区的湖泊。结果，所有湖泊的沉积物都按照主要元素的比例和有机物的总含量进行了分类。计算所有元素的浓度系数时，要考虑到大陆壳中不同元素的平均浓度以及背景区域沉积物中潜在的有毒元素的浓度。通过分析沉积物核，可以评估工业时代水环境中某些金属和准金属（Pb，Cd，Sb，Sn，Bi，Ni，Cu）行为的历史动态，无论是在城市化地区还是在北极的背景地区。在研究的沉积物中，确定了地球化学异常形成的主要自然因素和人为因素，包括各种元素（包括潜在有毒元素）的浓度。在城市地区，进入湖泊环境的主要金属来源是铜镍，热电厂，煤炭港口和焚化厂的排放。对于所有湖泊，通过计算地质累积指数和污染负荷指数来估算物体的污染水平。污染最严重的湖泊是北极市区的湖泊，背景地区的湖泊以中等污染水平或无污染为特征。在研究的沉积物中，确定了地球化学异常形成的主要自然因素和人为因素，包括各种元素（包括潜在有毒元素）的浓度。在城市地区，进入湖泊环境的主要金属来源是铜镍，热电厂，煤炭港口和焚化厂的排放。对于所有湖泊，通过计算地质累积指数和污染负荷指数来估算物体的污染水平。污染最严重的湖泊是北极市区的湖泊，背景地区的湖泊以中等污染水平或无污染为特征。在研究的沉积物中，确定了地球化学异常形成的主要自然因素和人为因素，包括各种元素（包括潜在有毒元素）的浓度。在城市地区，进入湖泊环境的主要金属来源是铜镍，热电厂，煤炭港口和焚化厂的排放。对于所有湖泊，通过计算地质累积指数和污染负荷指数来估算物体的污染水平。污染最严重的湖泊是北极市区的湖泊，背景地区的湖泊以中等污染水平或无污染为特征。进入湖泊环境的主要金属来源是铜镍，热电厂，煤炭港口和焚化厂的排放。对于所有湖泊，通过计算地质累积指数和污染负荷指数来估算物体的污染水平。污染最严重的湖泊是北极市区的湖泊，背景地区的湖泊以中等污染水平或无污染为特征。进入湖泊环境的主要金属来源是铜镍，热电厂，煤炭港口和焚化厂的排放。对于所有湖泊，通过计算地质累积指数和污染负荷指数来估算物体的污染水平。污染最严重的湖泊是北极市区的湖泊，背景地区的湖泊以中等污染水平或无污染为特征。