Environmental assessment of surface waters in the technogenic zones

10.12737/4177 ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 1-5
Author(s):  
Домнина ◽  
Viktoriia Domnina ◽  
Короткова ◽  
Anna Korotkova ◽  
Булухто ◽  
...  

As the result of the monitoring of the Klokovsky stream in s. Plekhanovo of Tula region in the sewage water of "Tulaelectroprivod" the individual living organisms (unicellular green algae and protozoa) were detected. The biological researches allow to revealing the a-mesosaprobic level of organic pollution of surface waters and sediments. The chemical analysis didn´t found inorganic pollutants, in particular heavy metals. Based on biotesting, the acute toxicity of surface water and sediments of the Klokovsky stream and fecal waters was found, caused by the presence of organic substances which are not detected by chemical methods. The research has shown that the surface water in the studied water flow is highly polluted and highly toxic. This ecosystem of the stream is close to destruction, as the trophic links and mechanisms of self-purification are disturbed. The atypical accumulation of organic matter is observed and there are a large number of bacteria, including pathogenic to humans. Thus, the Klokovsky stream and its coastal zone represent an area of intense ecological environment which may influence on human health. The danger is in contact with pathogenic microorganisms and organic substances in garden crops with irrigation water from this stream. There is a threat of the use in food of fish caught in the mouth areas of this watercourse. The consequences of such anthropogenic impacts affect the quality of drinking water. There is the possibility of contamination of the aquifer surface water streams by filtering them through the alluvial deposits of riverbed.

2019 ◽  
Vol 4 (3) ◽  
pp. 69-80
Author(s):  
L. I. Ryabushko ◽  
A. V. Bondarenko ◽  
S. S. Barinova

Data of the study of microphytobenthos of Crimean coastal waters of the Sea of Azov during 2005–2006, 2008–2011 and 2014 at 17 stations in the Sivash Gulf (East and West), Kamysh-Burunskaya Bay (Kerch) and bays of Kazantip Cape are given. Totally 200 taxa of microalgae belonging to 77 genera were found. Of these, 78 species – saprobity indicators, related to cyanobacteria (17 %) and diatoms (83 %), from 39 genera, for which bioindicative characteristics of organic water pollution are known, are used for the analysis of different ecotopes and regions. A leading place in microalgae flora belongs to a group of betamesosaprobionts (31 species) – indicators of moderate organic pollution, or of the III class of water quality with index of saprobity S = 2.0. The second place belongs to a group of oligosaprobionts (10 species), or of the II class of water quality, which is typical for natural clean waters with S = 1.0. According to the indicator of microalgae, there are no negative changes in the water quality in the regions. This indicates that anthropogenic impacts do not exceed the self-restoring potential of the marine ecosystems. However, the presence of the IV class of water quality indicators (17–21 %) in benthic communities indicates a constant flow of organic substances, which are gradually utilized by the living component of coastal ecosystems. The comparative data of the ratio of the Sea of Azov indicator microalgae species with those of other seas of moderate latitudes are discussed.


Author(s):  
N. S. Loboda ◽  
І. V. Katynska

The relevance of the study consists in the need for implementation of the calculation methods proposed by the EU Water Framework Directive. The methods are aimed at assessing the anthropogenic impacts аnd establishing the risks of not achieving the environmental objectives for different water bodies. The object of the study is the Kryvyi Torets River, one of the most polluted rivers in Ukraine. The study focuses on the indicators of anthropogenic impact affecting the quality of the river's surface waters and the identification of the risks of not ensuring a good ecological status of its basin. The work aims at determining the main anthropogenic impacts and their effects on the surface water status of the SWM of the Kryvyi Torets River in town of Druzhkivka and assessing the risk of failure to achieve the environmental objectives. For this purpose we used the data of hydrochemical observations up to 2018 inclusive which were compared with the established threshold values of the anthropogenic impacts. According to the Order of the Ministry of Ecology and Natural Resources of Ukraine No. 4 as of January 14, 2019, the monitoring point of the Kryvyi Torets River – town of Druzhkivka – belongs to a "heavily modified" surface water massif. In accordance with the hydromorphological monitoring effort for the Don RBD (river basin district) and the assessment of hydromorphological indicators within the framework of the project "Assistance in expanding the environmental monitoring system in the Donbas" implemented by the OSCE Project Co-ordinator in Ukraine the research allowed establishing the fact that the SWM of the Kryvyi Torets River is referred to as “a heavily modified” due to large-scale channelization activities. Based on the "Guidelines for determining the main anthropogenic impacts and their effects on the state of surface waters" the proposed study allowed evaluation of the anthropogenic impacts from the point sources (wastewater discharges) and diffuse sources (crop production and livestock farming). It was established that there is no environmental risk resulting from the volume of wastewater inflow to the annual runoff of the Kryvyi Torets River. However, a risk of failure to ensure a good environmental status was found in relation to the volume of wastewater inflow from point sources and the influence of crop production and livestock farming. According to chemical and physico-chemical indicators, a risk of not achieving environmental objectives was determined. According to chemical and physicochemical parameters, exceeding the limit values is set for ammonium. Identification of the environmental risk zones and percentiles was performed using the integrated curves of hydrochemical indicators distribution for the section of the Kryvyi Torets River at town of Druzhkivka. The largest values of anthropogenic impact correspond to wastewater discharge (Point Source Pollution) and livestock farming (Diffuse Source Pollution).


2016 ◽  
Vol 35 (2) ◽  
pp. 148-159 ◽  
Author(s):  
Lucia Kunáková

AbstractThe presence of water is one of the decisive factors of landscape’s natural potential. Water affects landscape’s predisposition for agricultural production, water supply available to the wide population and industry (the most important is the yield of water resources). Ponds, lakes and other water areas are zones of recreation and relaxation. Near sources mineral water, several world-famous spas were build. Waterways are also used to generate electricity. Geothermal underground water represents a very significant landscape potential. Determining hydrological potential of the area is important for the regional development. This paper assesses the landscape potential for water management regarding its surface waters in the micro-region Minčol. The micro-region was divided by a square grid, and for each square, we determined the appropriateness of this potential based on score points. The determining evaluation criteria were static reserves of surface water, waterway ranking and annual average discharge. First, we determined the significance (value) of individual criteria (classification characteristics), and then we calculated the values of individual classifiers, which were then multiplied by the value of the individual classifier intervals. The summary of points in each square belongs to a particular degree of suitability for water management based on surface waters. The potential was divided into five degrees (intervals): very unfavourable potential, unfavourable potential, moderately favourable potential, favourable potential and very favourable potential.


2007 ◽  
Vol 7 (3) ◽  
pp. 103-110
Author(s):  
C. Schilling ◽  
M. Zessner ◽  
A.P. Blaschke ◽  
D. Gutknecht ◽  
H. Kroiss

Two Austrian case study regions within the Danube basin have been selected for detailed investigations of groundwater and surface water quality at the catchment scale. Water balance calculations have been performed using the conceptual continuous time SWAT 2000 model to characterise catchment hydrology and to identify individual runoff components contributing to river discharge. Nitrogen emission calculations have been performed using the empirical emission model MONERIS to relate individual runoff components to specific nitrogen emissions and for the quantification of total nitrogen emissions to surface waters. Calculated total nitrogen emissions to surface waters using the MONERIS model were significantly influenced by hydrological conditions. For both catchments the groundwater could be identified as major emission pathway of nitrogen emissions to the surface waters. Since most of the nitrogen is emitted by groundwater to the surface water, denitrification in groundwater is of considerable importance reducing nitrogen levels in groundwater along the flow path towards the surface water. An approach was adopted for the grid-oriented estimation of diffuse nitrogen emissions based on calculated groundwater residence time distributions. Denitrification in groundwater was considered using a half life time approach. It could be shown that more than 90% of the total diffuse nitrogen emissions were contributed by areas with low groundwater residence times and short distances to the surface water. Thus, managing diffuse nitrogen emissions the location of catchment areas has to be considered as well as hydrological and hydrogeological conditions, which significantly influence denitrification in the groundwater and reduce nitrogen levels in groundwater on the flow path towards the surface water.


1994 ◽  
Vol 29 (3) ◽  
pp. 189-197 ◽  
Author(s):  
Frans A. N. van Baardwijk

The contribution of accidental discharges to the total emission of contaminating substances in surface waters is relatively increasing, as regular discharges are reduced. In The Netherlands a program has been started to develop a quantitative risk analysis method to be used within the discharge permitting process. The methodology takes into account the type of activities and related accident scenarios in terms of failure frequencies and source sizes, correction factors according to specific circumstances, as well as the nature of the receiving system (types of surface waters, but also public sewage water treatment plants). The methodology will provide an indication of the risk reduction needed in terms of reducing the frequency and/or the volume of possible spills. The method itself, the use of it within the legal framework and the relation with the EC-Directives are discussed.


1999 ◽  
Vol 39 (10-11) ◽  
pp. 221-224 ◽  
Author(s):  
Jana Zagorc-Končan ◽  
J. Šömen

Microbial purification capacity is an important factor in natural self-regulation in water. Evaluating the fate of biodegradable organic pollution downstream from the discharge seems an appropriate way to follow the effect of pollution and its hazard assessment, which dictates the needed sanitation measures. We suggest a simple test for such monitoring. A modification of the additional oxygen demand test, standardised in Ausgewählte Methoden der Wasseruntersuchung, was applied in two river case studies. The additional oxygen demand is a measure of the capability and rate of biodegradation of known organic substance as well as of the amount and activity of heterotrophic organisms in the river. The original test using peptone and glucose as additional feedings of BOD samples was modified by the use of other organic biodegradable model substances characteristic for individual industrial pollutants. The test was found to be an excellent indicator of adapted microorganisms, which are essential for the biodegradation of the appointed organic substances downstream of their discharge into the receiving stream.


Author(s):  
Evgeniy Yakushev ◽  
Anna Gebruk ◽  
Alexander Osadchiev ◽  
Svetlana Pakhomova ◽  
Amy Lusher ◽  
...  

AbstractPlastic pollution is globally recognised as a threat to marine ecosystems, habitats, and wildlife, and it has now reached remote locations such as the Arctic Ocean. Nevertheless, the distribution of microplastics in the Eurasian Arctic is particularly underreported. Here we present analyses of 60 subsurface pump water samples and 48 surface neuston net samples from the Eurasian Arctic with the goal to quantify and classify microplastics in relation to oceanographic conditions. In our study area, we found on average 0.004 items of microplastics per m3 in the surface samples, and 0.8 items per m3 in the subsurface samples. Microplastic characteristics differ significantly between Atlantic surface water, Polar surface water and discharge plumes of the Great Siberian Rivers, allowing identification of two sources of microplastic pollution (p < 0.05 for surface area, morphology, and polymer types). The highest weight concentration of microplastics was observed within surface waters of Atlantic origin. Siberian river discharge was identified as the second largest source. We conclude that these water masses govern the distribution of microplastics in the Eurasian Arctic. The microplastics properties (i.e. abundance, polymer type, size, weight concentrations) can be used for identification of the water masses.


2014 ◽  
Vol 16 (7) ◽  
pp. 1772-1778 ◽  
Author(s):  
John Selker ◽  
Frank Selker ◽  
Julie Huff ◽  
Russ Short ◽  
Deborah Edwards ◽  
...  

Identifying or ruling out groundwater discharges into sediment and surface waters is often critical for evaluating impacts and for planning remedial actions.


2016 ◽  
Vol 83 (3) ◽  
Author(s):  
Tineke H. Jones ◽  
Julie Brassard ◽  
Edward Topp ◽  
Graham Wilkes ◽  
David R. Lapen

ABSTRACT From the years 2008 to 2014, a total of 1,155 water samples were collected (spring to fall) from 24 surface water sampling sites located in a mixed-used but predominantly agricultural (i.e., dairy livestock production) river basin in eastern Ontario, Canada. Water was analyzed for viable F-specific DNA (F-DNA) and F-specific RNA (F-RNA) (genogroup I [GI] to GIV) coliphage and a suite of molecularly detected viruses (norovirus [GI to GIV], torque teno virus [TTV], rotavirus, kobuvirus, adenovirus, astrovirus, hepatitis A, and hepatitis E). F-DNA and F-RNA coliphage were detected in 33 and 28% of the samples at maximum concentrations of 2,000 and 16,300 PFU · 100 ml−1, respectively. Animal TTV, human TTV, kobuvirus, astrovirus, and norovirus GIII were the most prevalent viruses, found in 23, 20, 13, 12, and 11% of samples, respectively. Viable F-DNA coliphage was found to be a modest positive indicator of molecularly detected TTV. F-RNA coliphage, unlike F-DNA coliphage, was a modest positive predictor of norovirus and rotavirus. There were, however, a number of significant negative associations among F-specific coliphage and viruses. F-DNA coliphage densities of >142 PFU · 100 ml−1 delineated conditions when ∼95% of water samples contained some type of virus. Kobuvirus was the virus most strongly related to detection of any other virus. Land use had some associations with virus/F-specific coliphage detection, but season and surface water flow were the variables that were most important for broadly delineating detection. Higher relative levels of detection of human viruses and human F-RNA coliphage were associated with higher relative degrees of upstream human land development in a catchment. IMPORTANCE This study is one of the first, to our knowledge, to evaluate relationships among F-specific coliphages and a large suite of enteric viruses in mixed-use but agriculturally dominated surface waters in Canada. This study suggested that relationships between viable F-specific coliphages and molecularly detected viruses do exist, but they are not always positive. Caution should be employed if viable F-specific coliphages are to be used as indicators of virus presence in surface waters. This study elucidates relative effects of agriculture, wildlife, and human activity on virus and F-specific coliphage detection. Seasonal and meteorological attributes play a strong role in the detection of most virus and F-specific coliphage targets.


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