Assessment of the Ecological State of the Volga River Within the City of Yaroslavl’

2021 ◽  
Author(s):  
A. I. Akhremenko
Keyword(s):  
Ecological State ◽  
Volga River ◽  
The City

The genus Synura (Synurales, Synurophyceae) in small urban rivers of Nizhniy Novgorod

2017 ◽  
Vol 51 ◽  
pp. 57-70 ◽  
Author(s):  
E. S. Gusev ◽  
O. S. Perminova ◽  
N. A. Startseva ◽  
A. G. Okhapkin
Keyword(s):  
Taxonomic Composition ◽  
Morphological Data ◽  
Small Rivers ◽  
Urban Rivers ◽  
Large Lakes ◽  
Volga River ◽  
Volga River Basin ◽  
Means Of Transmission ◽  
Special Studies ◽  
The City

The latest special studies of the genus Synura in Russia were conducted in the 1970s. In the last decade, 14 new species of the genus were described based on molecular and morphological data. The total number of valid taxa of the genus has increased to 49. Only 18 taxa of Synura are known in Russia up to date, and the diver sity of the genus on this huge territory is strongly underestimated. Previous studies of the genus were focused mainly on large lakes or reservoirs. To reveal a more complete flora, it is necessary to include other habitats into account. Small urban rivers can be prospective habitats for interesting taxa including synuralean algae. Our study focuses on the taxonomic composition of the genus Synura in four small rivers in Nizhniy Novgorod (European Russia): Chyornaya, Levinka, Borzovka and Rzhavka. All the rivers flow in the city and fall under strong anthropogenic impact. The genus Synura was studied by means of transmission and scanning electron microscopy during 2011, 2012, 2014, 2015. In total, eight species and one form of Synura have been found: S. conopea, S. curtispina, S. echinulata, S. glabra, S. macropora, S. petersenii, S. spinosa f. spinosa, S. spinosa f. longispina, S. uvella. All nine taxa were observed in the river Chyornaya. Five taxa were found in the rivers Levinka, Borzovka and Rzhavka. One species (Synura conopea) is a new record to the flora of Russia. It was found in all studied rivers. Four taxa (S. conopea, S. glabra, S. macropora, S. spinosa f. longispina) are new records to the Middle Volga river basin.

Survey of the Ecological State of Eight Man-Made Lakes Within the City Limits of Freiburg, Germany

1992 ◽  
Vol 27 (2) ◽  
pp. 301-310
Author(s):  
Agnes G. Pulvermüller ◽  
Heidulf E. Müller
Keyword(s):  
Escherichia Coli ◽  
Water Quality ◽  
Biochemical Oxygen Demand ◽  
Secchi Depth ◽  
Oxygen Demand ◽  
Ecological Condition ◽  
Ecological State ◽  
Biological Parameters ◽  
The City ◽  
Oxygen Profiles

Abstract The survey of the ecological condition of eight lakes within the city limits of Freiburg included hydrochemical measurements and analyses (oxygen profiles, Secchi depth, pH, biochemical oxygen demand) together with biological parameters (chlorophyll a, phytoplanktonbiomass, Escherichia coli counts), as well as parasitic examinations. Only some of the investigated parameters are presented here. Seven of the eight lakes were found to be eutrophic. The process of eutrophication appears to be still in progress. One lake can be considered to be hypertrophic. Schistosome dermatitis was observed. The water quality in general was considered to be acceptable; suggestions to maintain or improve the water quality are made.

scholarly journals Ivano-Frankivsk City Groundwater Landscapes Ecological State

2017 ◽  
Vol 11 (2) ◽  
pp. 247-253
Author(s):  
Gutsuleak Vasyl ◽  
Fomenko Nataliia
Keyword(s):  
Chemical Analysis ◽  
Urban Areas ◽  
Potable Water ◽  
Ecological State ◽  
Ecological Situation ◽  
Geochemical Monitoring ◽  
Geochemical Evaluation ◽  
Calculation Results ◽  
Maximum Allowable Concentrations ◽  
The City

Abstract Ecological state of groundwater used as a source of potable water in urban areas of the city of Ivano-Frankivsk and its satellites is dealt with. Groundwater is assessed as a ratio between the content of pollutants and the relevant hygiene standards. Environmental assessment grounded on the materials of chemical analysis (74 samples) compared to maximum allowable concentrations and background values. Calculations of the value of hazard and the intensity of pollutions were the methods of ecological and geochemical evaluation of groundwater contamination. Based on calculation results, geochemical maps were compiled depicting satisfactory, hazardous and critical degrees of hydro-ecological situation. Developed maps can serve for the purposes of further geochemical monitoring of ecological situation.

ECOLOGICAL STATE OF THE ATMOSPHERE OF ROSTOV-ON-DON IN 2000–2018

2020 ◽  
Author(s):  
V.L Gaponov ◽  
◽  
T.N. Savuskan ◽  
E.Y. Gaponova ◽  
Y.S. Matyushkin. ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Nitrogen Dioxide ◽  
Nitrogen Oxide ◽  
Sulphur Dioxide ◽  
Maximum Permissible Concentration ◽  
Quantitative Composition ◽  
Ecological State ◽  
Qualitative And Quantitative ◽  
Suspended Substances ◽  
The City

The article reduced a qualitative and quantitative composition of pollutants (suspended substances, sulphur dioxide, carbon monoxide, nitrogen dioxide, nitrogen oxide, formaldehyde, benz (a) pyrene) in the atmosphere of the city of Rostov-on-Don in 2000–2018 year. An assessment of their possible impact on human health when using this criterion is made, as the maximum permissible concentration

IMPROVING THE ORGANIZATION OF PASSENGER SERVICE ON THE ROUTE BY USING BUSES OF DIFFERENT CAPACITY

2019 ◽  
Vol 16 (3) ◽  
pp. 264-275 ◽  
Author(s):  
I. M. Ryabovbov ◽  
R. Ya. Kashmanov
Keyword(s):  
Road Network ◽  
High Capacity ◽  
Rolling Stock ◽  
Volga River ◽  
The Road ◽  
Passenger Traffic ◽  
Transport Services ◽  
Rational Distribution ◽  
On The Road ◽  
The City

Introduction. The authors propose to use a rational distribution of buses, taking into account their passenger capacity and the hours of the day, in order to optimize the operation of the rolling stock (RS) on the route. The usage of RS low-capacity on routes with significant passenger traffic increases the RS need, the load on the transport network and emissions of harmful substances into the atmosphere. Operation of high-capacity buses on routes with low power passenger traffic leads to the large intervals of movement and to the increase of waiting time for passengers. The authors highlight that on the number and type of buses’ determining it is necessary to take into account the city specifics (on the example of Volgograd), such as the presence of only two main streets with three lanes in each direction, adjacent roads through which the routes pass, one lane direction.The length of the city along the Volga river in total is about 90 km, due to the peculiarities of the road network (RN) of the city, any irrational use of the RS leads to a significant load on the road network, and, as a result, to the congestion on the roads. Nowadays the PS is not operated effectively.On most routes of the city the capacity of RS does not correspond to passenger traffic on the route. Possible way to optimize the use of RS is taking into account the daily load on the road network.Materials and methods. The authors studied the technology of the movement organization of the rolling stock on the № 59 route. In order to optimize the transportation process, the authors used the method of determining the buses’ number by hour of the day on the base of the graph-analytical method. Buses of different capacity were used on this route.Results. The resulting distribution of buses made it possible to combine the interests of carriers and passengers, to increase the efficiency of rolling stock and to reduce the load on the road network.Discussion and conclusions. As a result, the authors present the measures for improving the efficiency of the rolling stock. These measures are the main for improving transport services for population.

ASSESSMENT OF THE QUALITY OF THE LAKE KOPA OF THE CITY OF KOKSHETAU BY HYDROCHEMICAL INDICATORS

2021 ◽  
Vol 102 (3) ◽  
pp. 74-79
Author(s):  
A.T. Sadvokasova ◽  
◽  
I.B. Fakhrudenova ◽  
T.S. Karnaukhova ◽  
R.M. Contrastinova ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Body ◽  
Ecological State ◽  
Hydrochemical Regime ◽  
The City

This article provides a brief description of the Kopa Lake in the Akmola region. The results of the study of the ecological state of the water body for 2018...2020 are presented. The analysis of the hydrochemical regime of water is carried out, the index of water pollution is determined. According to the data we received, the reservoir is exceeding the MPC in some indicators.

scholarly journals Parklands of “Dynamo” park, “Naval Fleet Officers’ House” in the city of Khabarovsk and their ecological state

2021 ◽  
Vol 895 (1) ◽  
pp. 012038
Author(s):  
V I Roslikova ◽  
T I Matveenko
Keyword(s):  
Anthropogenic Impact ◽  
Soil Cover ◽  
Ecological State ◽  
Ecological Situation ◽  
Soil Environment ◽  
Elementary Landscape ◽  
Geological Conditions ◽  
Basic Parameters ◽  
The City ◽  
Bioindication Methods

Abstract On the example of the park zones of the city of Khabarovsk (“Dynamo” and “House of officers of the fleet”), a variety of transformation of the soil cover and the formation of new preferred formations were revealed. The specificity of the state of the soil environment of two parks, located in e same type of engineering-geological conditions, but different variants of anthropogenic impact, is revealed. The changes in the structure of the profiles depending on the position of the soil in the elementary landscape are considered and their biological activity is characterized. The use of bioindication methods indicates that the most comfortable park areas of the city are also susceptible to contamination with heavy metals. It is proposed to use the characteristics of the basic parameters of the soil cover as a promising approach in improving the environment. This will reveal the ecological situation of the territory and make appropriate decisions to improve its condition.

scholarly journals The Change of the Water Regime of the Volga River in the Area of the Protected Island Bakhilovsky

2020 ◽  
Author(s):  
Keyword(s):  
Water Content ◽  
Water Regime ◽  
High Water ◽  
Ecological State ◽  
Spring Flood ◽  
Volga River ◽  
High Water Period ◽  
Average Water ◽  
Annual Water

The ecological state of the protected Islands Seredysh and Shalyga (now Bakhilovsky island) depends on the water content and flow of the Volga River. We have analyzed the long-term changes in the water flow of the Volga River for the period 1958-2017 in the alignment Zhiguli dam, located 12 km upstream from the island. According to the average annual water consumption, there are three periods that differ from each other in water content: low-water period (1958–1976), high-water period (1977–1997) and the period of average water content (1998–2017), with extremely low-water (1967, 1973, 1975, 1976, 1977, 1996) and extremely high-water (1966, 1979, 1981, 1990, 1991, 1994) years. In highwater years, during the passage of the spring flood, the island is almost completely flooded, and in low-water years, during the summer low water, the area of the island increases and changes its configuration.

scholarly journals Assessment of the ecological state of the territory by its population in the context of the formation of environmental awareness (on the example of a small town)

2020 ◽  
Vol 208 ◽  
pp. 01012
Author(s):  
Irina Zaitseva ◽  
Aleksander Krikunov
Keyword(s):  
Environmental Policy ◽  
Small Town ◽  
Environmental Awareness ◽  
Environmental Problems ◽  
Ecological State ◽  
Ecological Situation ◽  
Place Of Residence ◽  
General Complex ◽  
The City ◽  
Official Data

The article analyzes the assessment of the ecological state of the territory by its population in a small town to study the state of public environmental awareness. According to official data, the city of Yelets and the Lipetsk region in general face a significant number of unresolved environmental problems against the background of a quite stable ecological situation. Given the general complex ecological situation in the region, the assessment of the ecological situation in specific settlements, rooted in the local agenda, can be radically different. This allows us to speak about the primary attention of the population to their local place of residence and the problems they face directly. The involvement of the population in the activities to preserve the environment of the region as a whole requires promoting public environmental awareness through a competent environmental policy by state and municipal authorities.

scholarly journals COMPARATIVE BIOELECTRONIC DIAGNOSTICS OF THE ECOLOGICAL STATE OF POLLUTED WATER AREAS (ON THE EXAMPLE OF SOME CHANNELS OF THE VOLGA DELTA)

2021 ◽  
Author(s):  
Sergey V. Kholodkevich ◽  
Maxim K. Motruk ◽  
Vasiliy A. Lyubimtsev ◽  
Olga N. Susloparova
Keyword(s):  
Ecological Status ◽  
Water Area ◽  
The State ◽  
Polluted Water ◽  
Ecological State ◽  
Volga River ◽  
Volga Delta ◽  
Environmental Status ◽  
Quality Coefficient ◽  
The Russian Federation

The objects of bioindication of the ecological state were 3 channels of the Volga Delta, located both directly in Astrakhan and in the Astrakhan region. The aim of the work was to conduct a comparative bioelectronic diagnosis of the ecological state of the selected channels with different local anthropogenic loads, both by type and size, based on assessments of the functional state (health) of the bivalve mollusks Anodonta anatina living in them, estimated on the basis of an analysis of their cardiorhythm, measured using an original fiber-optic bioelectronic system. It was found that shellfish selected from different water areas, after 1hour functional load, restore the original heart rate for different times, but in the range from 117 to 166 minutes, which is typical for shellfish living in significantly polluted reservoirs of the same ecological status - "Bad". This characteristic of the water areas completely coincides with the characteristic of the ecological state of the channels of the Volga River Delta specified in the State Report "On the state and on Environmental Protection of the Russian Federation in 2017". The authors proposed and justified the possibility of using the water area of the Gandurino River as a conditional reference for the Volga Delta region. In this case, according to the value of the environmental quality coefficient EQR, the channels of the Urban Branch and the Small Channel can be attributed to the regional environmental status - "Good".

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