Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов最新文献

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The Amur River Water During the Winter Low-water Period: The Many-year dynamics of the Sulfates Content and Runoff. 冬季枯水期的阿穆尔河水:硫酸盐含量和径流的多年动态。

Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов Pub Date : 1900-01-01 DOI: 10.35567/1999-4508-2020-3-6

{"title":"The Amur River Water During the Winter Low-water Period: The Many-year dynamics of the Sulfates Content and Runoff.","authors":"","doi":"10.35567/1999-4508-2020-3-6","DOIUrl":"https://doi.org/10.35567/1999-4508-2020-3-6","url":null,"abstract":"ulfates are the dominant ions among the major ones in the Amur region’s sewage. Therefore, the purpose of the research is to study the long-term dynamics of the content and runoff of sulfates in the Amur River in the winter low-water, based on the materials of Roshydromet for 1943-1976 and the author’s data for 1999-2019.Significant variations in the main areas were found due to both the diversity of natural conditions and anthropogenic influence in the areas of large cities and localities. The impact of the construction of hydroelectric power plants, significant economic changes in the Chinese part of the Amur basin, as well as the closure of pulp and paper and microbiological industries in the Russian part of the Amur basin on the long-term dynamics of the content and flow of sulfates is estimated. The maximum content of sulfates in the Amur River was observed after the accident at the Jilin chemical plant in China in December 2005. The influence of major floods on the increase in the flow of sulphates in the winter low-water was established.","PeriodicalId":259419,"journal":{"name":"Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125895567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

River waters hardness variations on the territory of the republic of Tatarstan. 鞑靼斯坦共和国境内的河水硬度变化。

Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов Pub Date : 1900-01-01 DOI: 10.35567/1999-4508-2020-3-7

{"title":"River waters hardness variations on the territory of the republic of Tatarstan.","authors":"","doi":"10.35567/1999-4508-2020-3-7","DOIUrl":"https://doi.org/10.35567/1999-4508-2020-3-7","url":null,"abstract":"One of the main criteria for river water quality is overall hardness, the value of which determines its suitability for use in various sectors of the national economy.Availability of the many-year information about the magnitude of the overall hardness of the river waters of the Republic of Tatarstan served as the basis for analyzing its changes in time and space. As an integral indicator, the average annual value of the overall hardness is chosen, the distribution of which throughout the territory of the Republic is clearly reflected in the given skeleton maps. A comparative analysis of the total hardness of river waters, observed in the XX and XXI centuries, showed that its value remained within the category of moderate, medium hardness and hard waters, but there was a redistribution of these values in space. Since the formation of rigidity largely depends on local features of the territory and, first of all, on the heterogeneity of the geological structure of the basin, the analysis of its changes was made commensurate with the geological structure of the three large geographical regions of the Republic of Tatarstan − Pre-Volga, Pre-Kama and Zakamye.The formation of hardness is also influenced by the anthropogenic factor. In the zone of influence of large reservoirs, created in the territory of the Republic of Tatarstan, a rise in the level of groundwater is observed, changing not only the nature of the underground supply of water bodies of the Republic, but also the quality of river water. The redistribution of general hardness in the south-east of the republic is connected with the activities of oil enterprises, which make significant adjustments to the hydro/chemical composition of natural waters.","PeriodicalId":259419,"journal":{"name":"Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128432914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of the Seasonal Variability of the Content of Heavy Metal Compoundsin the River Waters of the Foothill Zone of the Central Сaucasus. 中国中部山麓地区河流水体重金属化合物含量的季节变化规律估算Сaucasus。

Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов Pub Date : 1900-01-01 DOI: 10.35567/1999-4508-2020-3-5

{"title":"Estimation of the Seasonal Variability of the Content of Heavy Metal Compounds\u0000in the River Waters of the Foothill Zone of the Central Сaucasus.","authors":"","doi":"10.35567/1999-4508-2020-3-5","DOIUrl":"https://doi.org/10.35567/1999-4508-2020-3-5","url":null,"abstract":"Based on long-term data, the seasonal variability of the content of heavy metal compounds in the water of the rivers of the foothills of the Central Caucasus – the Terek, Malka, Baksan, Ardon, Cherek, and Urukh – was estimated.Generalizing studies affecting the regional characteristics of the level of hazardous heavy metals in the river waters of the foothill zone of the Central Caucasus have not been arried out over many years. Therefore, the objective of the study was to assess the level of hazardous compounds of heavy metals (Cr, Ni, Mo, Mn, Zn, Pb) in the water of the Terek, Malka, Baksan, Ardon, Cherek and Urukh rivers at 6 observation points located in the foothill zone of the Central Caucasus, for the period from 2005 to 2018. In the analysis, the atomic absorption method using the MGA-915M electrothermal atomizer was used. The level of heavy metal compounds in river water was evaluated by such characteristics as the long-term average and median concentrations, the range of concentration fluctuations, and the frequency of exceeding the maximum permissible concentration. An analysis of long-term data for the period 2005-2018 on the study of the level of heavy metal compounds in the water of the Baksan, Malka, Urukh, Terek, Cherek and Ardon rivers in the foothill zone of the Central Caucasus shows that river water pollution to a greater extent occurs in summer rain flood . The revealed levels of heavy metal compounds in river water over the long-term period under study, as well as the frequency of exceeding the maximum permissible concentration, are illustrated by graphs. The results obtained may be relevant in the development of regional water quality indicators.","PeriodicalId":259419,"journal":{"name":"Актуальные направления оценки состояния и уровня антропогенной нагрузки водных объектов","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128321858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0