Complex assessment of toxicity of sea water in the water area of the Karadag Natural Reserve

2013 ◽  
Vol 35 (3) ◽  
pp. 128-132 ◽  
Author(s):  
V. V. Goncharuk ◽  
V. B. Lapshin ◽  
A. O. Samsoni-Todorov ◽  
V. F. Kovalenko ◽  
A. L. Morozova ◽  
...  
Keyword(s):  
2015 ◽  
Vol 37 (1) ◽  
pp. 4-9
Author(s):  
V. V. Goncharuk ◽  
A. O. Samsoni-Todorov ◽  
O. A. Savchenko ◽  
V. A. Yaremenko ◽  
V. A. Lapchenko ◽  
...  

2020 ◽  
Vol 48 (2) ◽  
pp. 107-134
Author(s):  
K. A. Podgorny ◽  
A. V. Leonov

The developed SM-model, describing the suspended matter concentrations in water environment, was used to assess the consequences of the works on dredging and dumping ground during the reconstruction and modernization of the water body area in the Pionersky Port (Kaliningrad region). The complex of recreated works includes 11 stages of the dredging works during which the various types of bottom sediments are extracted, some part of these sediments are transported outside the port water area and discharged into the marine underwater dump, while other their part are used for hydraulic engineering works in the port area. At the dredging and dumping the sediments, additional zones of water turbidity are formed (with a suspended matter concentration > 50 mg/L), its deposition causes the formation of a layer of sediments on the bottom. For each work stages, the technological data on the currents in the port water area are used for mathematical modeling and calculations of the amounts of various types of sediments extracted from the bottom, their redistribution over the sea area, the concentration of suspended matter in sea water, and the indicators (areas and volumes) of the emerging turbidity zones water due as a result of the construction works. Calculated data may be used to compile a report “Assessment of influence on the water environment state” (or AIWES) in the frame of these works.


2017 ◽  
Vol 862 ◽  
pp. 102-106
Author(s):  
Anita Diah Pahlewi ◽  
Suntoyo ◽  
Wahyudi ◽  
Muhammad Taufik

Wonorejo waters have a significant value, both economically and socially. One of ecosystem that have close relationships with Wonorejo waters is Estuary. Temperature and salinity have role in water circulation, where the water circulation have impact to some organism distribution and pollutant dispersion. The purpose of this study is to investigate the characteristic of temperature and salinity distribution in Wonorejo Estuary body’s water. Furthermore, it can be used for determining the type of Wonorejo Estuary. The observation has been done at Wonorejo Estuary in August 2015 to measure the vertical and horizontal temperature and salinity distribution. The measurement of temperature and salinity used Conductivity, Salinity, Temperature tool by YSI. The result show that commonly the temperature and salinity vertical profile are almost similar from surface layer until the bottom layer. But they have trend where the salinity increase, while the temperature decrease to the water depth. There is no thermocline layer due to the shallow water area, it is so from the upper layer until the bottom layer still influenced by dragforce and the vertical mixing between fresh water and sea water occurs. The horizontal temperature distribution in the open sea surface tend to zonation, which is not depend to longitudinal position. The salinity value in each depth are not change obviously indicate that there is a vertical well mixed between fresh water and sea water.


2019 ◽  
Vol 3 (1) ◽  
pp. 53 ◽  
Author(s):  
Slamet Subekti

Environmental tragedy overshadows efforts to seize coastal space (Coastal and Ocean Grabbing) in part from 1,373 ha. for the Benoa Bay reclamation project in South Bali. So far, Benoa Bay has become a livelihood for fishermen and marine tourism practitioners. This water area with intertidal tides allows flushing to maintain sea water quality, in addition to the 100 ha of “Ngurah Rai” mangrove forest. which regulates hydro-orology around Denpasar. Public reasoning was disturbed when the investors of PT TWBI facilitated by the State through the Presidential Regulation, the Ministerial Decree KP and the Bali Governor's Decree planned to build 12 islands by sinking over 700 ha of water. for established hotels, villas, offices, educational facilities, sports complexes, trade, botanical gardens, apartments and floating villas. The controversy took place when the results of an AMDAL study from LPPM Udayana University stated that the Benoa Bay area was not socio-culturally suitable for reclamation, but investors sought to continue the reclamation by cooperating with a number of universities from outside Bali to conduct a comparative AMDAL study. Responding to the plan, the indigenous people through Paruman Pakraman stated their attitude to reject the reclamation of Benoa Bay by considering environmental sustainability and the preservation of customary-cultural areas. The reclamation issue of Benoa Bay in its development has not only been an environmental issue, but has penetrated into the realm of local politics. When the Bali Pilgub, Denpasar Pilwakot and Badung Pilbup and even the election of Bandesa (traditional village officials) conditioned all candidates to make an integrity pact rejecting the reclamation of Benoa Bay, including candidates who had been known to be pro-reclamation. After twice (2014-2018) the location permit was declared not meeting the AMDAL study, now investors have obtained a new permit (2018-2020) from the KKP to continue the struggle over the Benoa Bay living space. The ForBALI movement, which is the mandate of Pasubayan Pakraman, is preparing a new round of struggle for environmental justice in Benoa Bay. ForBALI's agenda going forward, first: push the results of the AMDAL study to be socio-culturally inappropriate. Second, submit a review of Perpres No. 51/2014 which is the "culprit" of the Benoa Bay reclamation discourse. Third, encourage the cancellation of Perpres No. 51/2014 to end the Benoa Bay reclamation polemic.


2018 ◽  
Vol 58 (3) ◽  
pp. 396-404 ◽  
Author(s):  
K. A. Kornishin ◽  
P. A. Tarasov ◽  
Ya. O. Yefimov ◽  
Yu. P. Gudoshnikov ◽  
S. M. Kovalev ◽  
...  

The study was carried out to reveal characteristics of the ice regime of poorly explored water area of the Khatanga Bay in the South-Western part of the Laptev Sea. Actuality of the research is due to the high potential of hydrocarbon reserves in the license area «Khatangsky» of the PAO «NK «Rosneft Currently available methods of monitoring ice cover and hydrometeorological conditions throughout the year were used. The main features of the hydrological regime of the region in the ice-free period, reflected in the spatial distribution of thermohaline characteristics and sea level fluctuations, are shown. The area under investigation has specific features of the conditions for the formation of ice cover: the entire area is covered with the fast ice; the winter fresh water infl w from Khatanga and Anabar rivers results in the desalination of sea water, and this promotes formation of ice cover, which differs in crystal structure and texture from both fresh and sea ices. These factors do influence on the mechanical properties of ice, including its strength. It was found that the average and maximum values of strength of the smooth and deformed ice of the Khatanga Gulf are approximately twice as high as the similar values of the sea ice strength in the southern part of the Laptev Sea. The basic features of the spatial distribution of different types of deformations of the ice cover such as lines of ice hummocks, zones of homogeneous ice hummocking, and stamukhas had been determined.


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