scholarly journals Changing parameters of waters chemical composition in the Lake Arakhley water column (Eastern Transbaikalia)

2022 ◽  
Vol 962 (1) ◽  
pp. 012010
Author(s):  
L P Chechel

Abstract The need to preserve the quality of water resources under conditions of anthropogenic impact is one of the most urgent problems of our time. The purpose of this work was to study the features of the distribution of the parameters of the chemical composition of the waters of Lake Arakhley in a vertical section. The investigated waters are characterised by a constancy of mineralisation and chemical composition, both within the water area and in the vertical section. The waters are ultra-fresh (salinity less than 200 mg / L), neutral and slightly alkaline (average pH 7.9), HCO3 Mg-Ca chemical composition. The carbon dioxide content in the water column has a significant impact on the concentration of hydrogen ions, as evidenced by the inverse relationship between pH and CO2 content. The observed increase in the nitrogen form and CO2 contents in the bottom part of the lake is most likely related to the life processes of organisms and vegetation. The recorded excess concentrations of Mn, Cu, Ni, and Al over maximum permissible concentrations indicate the need for additional studies to identify their sources.

Author(s):  
Yu.A. Spirin ◽  
S.I. Zotov ◽  
V.S. Taran ◽  
Yu.V. Koroleva

The aim of the work is to research the chemical composition of surface watercourses in the Slavsky district of the Kaliningrad region in the winter hydrological season, and to compare the results with the data previously obtained by the authors for the autumn hydrological season and partly for the summer hydrological season. Watercourses and monitoring points for research have been identified: r. Zlaya, r. Shluzovaya, r. Nemoninka and r. Osa. In the winter season, water samples were taken, hydrometric characteristics were measured, and primary hydrochemical indicators were determined. On the basis of the obtained hydrochemical data, integral indicators were calculated to assess the quality of water, using combined lists of maximum permissible concentrations of pollutants. When monitoring hydrochemical indicators, it was revealed that the studied watercourses are, to one degree or another, subject to pollution. The water quality class in them varies from "moderately polluted" to "extremely dirty". When comparing the seasons, a tendency was revealed to improve the quality of water, which is associated with the water content of rivers, as well as with the cycles of natural and anthropogenic activity. The work has theoretical and practical significance. The data can participate in the planning of rational use of natural resources and the selection of measures to improve the geoecological state of the river network of the Slavsky region. The research can serve as a supplement to the formation of the general geoecological picture of the Kaliningrad region.


2019 ◽  
Author(s):  
A.A. Kovalenko

В условиях антропогенного воздействия на окружающую среду и несбалансированного природопользования может происходить снижение самоочищающей способности реки Амур и ухудшение качества воды. Водопользование в бассейне реки осуществляется со стороны трёх государств: России, Монголии и Китая. Основными источниками поступления загрязняющих веществ в Амур с российской стороны являются предприятия деревообрабатывающей промышленности, машиностроение, цветная металлургия, добыча полезных ископаемых, производство электроэнергии. Снижение качества воды происходит также за счет недостаточной степени очистки сточных вод. Трансграничное положение изучаемого водного объекта, разница демографических потенциалов России и Китая и активное техногенное воздействие со стороны сопредельных территорий обусловливает актуальность настоящего исследования, целью которого является оценка многолетней изменчивости химического состава и качества воды на протяжении реки Амур. Исследование проведено на основе многолетних (20002017 гг.) гидрохимических данных Государственной системы наблюдений за состоянием и загрязнением окружающей среды Росгидромета в пунктах наблюдений на р. Амур: с. Черняево, гг. Благовещенск, Хабаровск, КомсомольскнаАмуре и НиколаевскнаАмуре. Рассмотрен химический состав воды на различных участках реки и проведена оценка качества воды по гидрохимическим показателям. Построены графики временной изменчивости значений удельного комбинаторного индекса загрязненности воды (УКИЗВ). Анализ многолетних данных показал, что на всех исследуемых участках реки концентрации хлоридов, сульфатов и нитратов не превышают предельно допустимые концентрации. Выявлены характерные загрязняющие вещества, содержание которых превышает нормативы ПДК более, чем в половине случаев. Это органические вещества, азот аммонийный, соединения железа, меди, цинка, никеля, марганца, фенолы и нефтепродукты. Наблюдается увеличение содержания некоторых загрязняющих веществ вниз по течению реки. В целом качество воды реки Амур на различных участках характеризуется 3м ( загрязненная и очень загрязненная ) и 4м классами качества ( грязная ). В динамике выражена общая положительная тенденция незначительного снижения уровня загрязненности воды.The title of the article is longterm variability of chemical composition and quality of water along the Amur river. As the title implies the article describes the chemical composition of water in different parts of the river and the water quality by hydrochemical parameters. A mention should be made that under the conditions of anthropogenic press on the environment and unbalanced use of natural resources, the ecological potential of the water ecosystem of the Amur River is depleted and the quality of water decreases. The transboundary position of the studied water object, the difference in the demographic potentials of Russia and China determines the relevance of this paper. The purpose of the work is to assess the longterm variability of the chemical composition and water quality along the Amur River. It should be noted that this research is based on longterm (20002017) Hydrochemical information. The state system of observers for the state and environmental pollution of Roshydromet at observation points along the river: c. Chernyaevo, the city of Blagoveshchensk, Khabarovsk, KomsomolskonAmur and NikolaevskonAmur. As a result, the analysis of longterm data showed that the concentrations of chlorides, sulphates and nitrates do not exceed the maximum permissible concentrations on all the studied river sections. Identified characteristic pollutants, the content of which exceeds the MPC standards in more than half of the cases. There is an increase in the content of some pollutants downstream of the river. In general, the water quality of the Amur River at different sites is characterized by the 3rd (polluted and very polluted) and 4th quality classes (dirty).


Author(s):  
Ignat Ignatov

In Bulgaria is observed a great variety of spring waters. They are mineral and mountain spring waters. According to their temperature they can be cold (up to 37° С), warm (from 37° C to 60° C) and hot (over 60° C). This is Bulgarian standard, European Union. The mountain spring waters are cold with temperature up to 25° С. In Bulgaria for drinking mineral and mountain spring waters are valid Ordinance No 9 / 2001, Official State Gazette, issue 30, and decree No. 178 / 23.07.2004. By their chemical composition they fall into three categories – low mineralized (up to 2 g/L), moderately mineralized (2 to 15 g/L) and highly mineralized (15 – 30 g/L). According to their chemical composition the mineral waters are divided into sulphate, sulfide, hydrogen carbonate, chloride and carbonic. With regards to their gas composition they are nitrogen, sea and carbonic waters. The objective of the current study is to show springs examined by physicochemical parameters and correspond to Ordinance No 9 / 2001, Official State Gazette, issue 30, and decree No 178 / 23.07.2004 about the quality of water intended for drinking and household purposes. In the current study mineral waters and mountain spring waters from mountain regions of Bulgaria have been studied. It is well known that in the mountain areas of Bulgaria live the most of long-living people and centenarians. The studies are conducted by microbiological laboratory of Trakia University, Stara Zagora headed by Nedyalka Valcheva, accredited laboratory Eurotest Control, and the laboratory of Scientific Research Center of Medical Biophysics.


Author(s):  
Sergey Suslov ◽  
Ludmila Gruzdeva ◽  
Vladimir Gruzdev ◽  
Marina Hrustaleva

Ecological geochemical research of water protection areas was held in Moscow region. Precipitation (snow) is known to influence the formation of water chemical structure and determine geochemical effect. It shows the results of snow research in water protection area of Uchinsk and Pestovo reservoirs in order to find out the sources of pollution, to assess water quality and work out the recommendations to reduce and eliminate the sources of pollution. The article gives the evaluation of water quality depending on waterflow from the catchment area and various temporary flows. It shows the influence of excessive use of fertilizers on water quality (especially in spring) which leads to eutrophication processes and worsens the quality of water.


2017 ◽  
Vol 23 (1) ◽  
pp. 225 ◽  
Author(s):  
Rikson Siburian ◽  
Lisnawaty Simatupang ◽  
Minsyahril Bukit

AbstrakPelabuhan Kalabahi-Alor di lahan milik PT (persero) pelabuhan Indonesia III Cabang Kupang, dengan luas daerah daratan pelabuhan 71.131 m2 dan lingkungan kerja perairan 1.880 Ha. Sedangkan luas lingkungan kepentingan adalah 1.813 Ha. Dengan ukuran 4 x 5 meter untuk dermaga I dan 115 x 10 meter untuk dermaga II. Wilayah monitoring termasuk dalam wilayah Kelurahan Teluk Mutiara, Kecamatan Teluk Mutiara,   Kabupaten Alor Provinsi NTT. Kegiatan ini dilakukan untuk analisis monitoring kualitas perairan laut di lingkunganpelabuhan umum Kalabahi-Alor.Kualitas air meliputi kualitas kimia-fisika perairan laut disekitar pelabuhan. Sampel air laut diambil dari 3 (tiga lokasi) yang berbeda. Hasil analisis dan pemantauan menunjukan bahwa kualitas air laut di kawasan pelabuhan merupakan dampak dari:kegiatan perkapalan (pengoperasian kapal dan kecelakaan kapal), limbah  yang berasal dari limbah kapal (bongkar-muat barang), aktivitas pelabuhan lainnya (seperti kegiatan kuliner),saluran drainase yang bermuara kelaut, bocoran dan tumpahan pembongkaran muatan yang bercampur minyak dan oli dari sisa ballast dan air sisa pencucian, serta limbah pemukiman yang masuk secara langsung di pinggiran pelabuhan.Data kualitas (sifat kimia-fisika) air laut wilayah perairan  pelabuhan Umum Kalabahi  yang dilaksanakan secara analisis insitu maupun laboratorium menunjukkan bahwa seluruh parameter yang diukur masih memenuhi baku mutu yang diizinkan oleh peraturan pemerintah.Kata Kunci: analisis, kualitas air laut, pelabuhan Waingapu AbstractKalabahi-Alor port on land owned by PT (Persero), the Indonesian port of Kupang Branch III, with an area of 71 131 m2 area of port land and waters 1,880 Ha working environment. While the broad sphere of interest is 1,813 Ha. With a size of 4 x 5 meters to the pier I and 115 x 10 meters to dock II. Monitoring region including the Gulf Pearl Village area, Teluk Mutiara, Alor Regency NTT Province. This activity is carried out for the analysis of sea water quality monitoring in the public ports Kalabahi-Alor. The quality of water include chemical-physical quality of the marine waters around the port. Sea water samples taken from 3 (three locations) are different. The results of analysis and monitoring showed that the seawater quality in the port area is the impact of: the activities of shipping (operation of ships and shipwrecks), waste from waste ship (loading and unloading), the activity of other ports (such as culinary activities), drainage channels which empties into the sea, leaks and spills that mixes the unloading of oil and oil from the remaining residual ballast water and washing, as well as residential waste that goes directly on the outskirts of the port. Data quality (chemical-physical) sea water port water area Kalabahi General conducted an in situ and laboratory analysis showed that all the measured parameters still meet quality standards permitted by government regulations.Keyword : analysiss, sea water quality, Waingapu port


2021 ◽  
Vol 24 (2-3) ◽  
pp. 43-46
Author(s):  
I.S. Sinkova

The quality of water in small rivers of Khabarovsk during the winter low-water years 2020–2021 has been assessed. It shows a wide variation in pollutants concentrations due to a different chemical composition of feeding waters.


Author(s):  
Ignat Ignatov

In Bulgaria is observed a great variety of spring waters. They are mineral and mountain spring waters. According to their temperature they can be cold (up to 37 °С), warm (from 37°C to 60 °C) and hot (over 60 °C). This is Bulgarian standard for the qualification of waters according to their temperature. The mountain spring waters are cold with temperature up to 25 °С. By their chemical composition they fall into three categories – low mineralized (up to 2 g/L), moderately mineralized (2 to 15 g/L) and highly mineralized (15 – 30 g/L). According to their chemical composition the mineral waters are divided into sulphate, sulfide, hydrogen carbonate, chloride and carbonic. With regards to their gas composition they are nitrogen, sea and carbonic waters. The waters that correspond to the requirements of Decree No. 14 regarding the resort resources, resort localities and resorts, have balneological parameters. The main objective of the current review is to show springs, which have been examined by microbiological parameters and are in compliance with Ordinance No. 9 / 2001, Official State Gazette, issue 30, and decree No. 178 / 23.07.2004 regarding the quality of water intended for drinking and household purposes, and Decree № 14 regarding the resort resources, resort localities and resorts.


2021 ◽  
Vol 6 (2(35)) ◽  
pp. 5-10
Author(s):  
Liliya Zuberovna Zhinzhakova ◽  
Elena Alexandrovna Cherednik

The assessment of the chemical composition and quality of glacial waters for the period 2017-2018 was carried out according to the maximum permissible concentrations. The results of the study of the content of the trace element Mn and mineral nitrogen compounds in the waters of glacial rivers are presented. According to observations during this period, the features of the waters of the studied rivers and their difference in the level of pollution were revealed. An ecological assessment of the pollution of water bodies is given according to the classification of the quality of surface waters of the land. The data are presented in tables.


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