scholarly journals Temporal Interpretation of Environmental Pollution around Landfill Site Using Core of Bottom Sediments from Pond

Author(s):  
Kazuo Kamura ◽  
Maki Ishiwata ◽  
Nobuharu Kihou ◽  
Masanori Kurihara
2018 ◽  
Vol 25 (29) ◽  
pp. 29379-29386 ◽  
Author(s):  
Vladimir S. Roumak ◽  
Elena S. Levenkova ◽  
Nataliya V. Umnova ◽  
Vladimir S. Popov ◽  
Kseniya A. Turbabina ◽  
...  

2019 ◽  
pp. 553-561
Author(s):  
Danute Marciulioniene ◽  
Danguole Montvydiene ◽  
Vilmante Karlaviciene ◽  
William Hogland

Polluting substances when released into environment become one of the main factors ofenvironmental pollution since they cause changes to the chemical composition of water,bottom sediments and soil; they also disturb the biological balance and self-cleaningprocesses of the ecosystem that may lead to unpredictable alterations within the ecosystem.Together with the chemical and physical techniques the methods of bioindication andbiotesting are employed in the current research on environmental pollution and its impact onthe ecological integrity of ecosystems,The aim of this paper was to determine the sensitivity of a test-organism L sativum to thetoxic impact of different types of samples (liquid or solid: surface water, industrialwastewater, industrial storm water, landfill leachate, lake bottom sediments and sludge fromindustrial storm water sedimentation tank) from urban environment and chemical substancesand to demonstrate the possibilities of application of this plant in both the toxicologicalinvestigation and environmental pollution assessment.The results of conducted investigation have proved that L. sativum is a sufficiently universal,cheap and sensitive biotest for determination of toxicity of different types of samples (stormwater, bottom sediments, soil, wastewater from industrial sites, landfill leachate) and includedchemical substances. Therefore, it can be successfully applied in the environmental pollutionassessment.


Author(s):  
S. K. Peng ◽  
M.A. Egy ◽  
J. K. Singh ◽  
M.B. Bishop

Electron microscopy and energy dispersive x-ray microanalysis (EDXA) are found to be very useful tools for identification of etiologic agents in pneumoconiosis or interstitial pulmonary disorders. Pulmonary interstitial fibrosis and granulomatosis are frequently associated with occupational and environmental pollution. Numerous reports of pneumoconiosis in various occupations such as coal and gold miners are presented in the literature. However, there is no known documented case of pulmonary changes in workers in the sandpaper industry. This study reports a rare case of pulmonary granulomatosis containing deposits from abrasives of sandpaper diagnosed by using EDXA.


1974 ◽  
Vol 19 (7) ◽  
pp. 568-568
Author(s):  
GEORGE W. ALBEE

Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.


Author(s):  
Elvira A. Zinnatova, Larisa A. Frolova ◽  
Larisa A. Frolova

The Northern lakes are good objects for paleoclimatic reconstructions. One of the sources of information about changes in the ecosystems of lakes are diatoms. The study of diatom complexes revealed 133 taxa belonging to 49 genera, 24 families, 13 orders and 3 classes in the bottom sediments of the thermokarst lake of the Pechora Delta. Dominated by the Holarctic representatives of benthic and fouling organisms giving preference to the alkaline environmental conditions.


Author(s):  
Angelina E. Shatalova ◽  
Uriy A. Kublitsky ◽  
Dmitry A. Subetto ◽  
Anna V. Ludikova ◽  
Alar Rosentau ◽  
...  

The study of paleogeography of lakes is an actual and important direction in modern science. As part of the study of lakes in the North-West of the Karelian Isthmus, this analysis will establish the dynamics of salinity of objects, which will allow to reconstruct changes in the level of the Baltic Sea in the Holocene.


Author(s):  
O. A. Lipatnikova

The study of heavy metal speciation in bottom sediments of the Vyshnevolotsky water reservoir is presented in this paper. Sequential selective procedure was used to determine the heavy metal speciation in bottom sediments and thermodynamic calculation — to determine ones in interstitial water. It has been shown that Mn are mainly presented in exchangeable and carbonate forms; for Fe, Zn, Pb и Co the forms are related to iron and manganese hydroxides is played an important role; and Cu and Ni are mainly associated with organic matter. In interstitial waters the main forms of heavy metal speciation are free ions for Zn, Ni, Co and Cd, carbonate complexes for Pb, fulvate complexes for Cu. Effects of particle size and organic matter content in sediments on distribution of mobile and potentially mobile forms of toxic elements have been revealed.


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