scholarly journals Influence of oxic and anoxic groundwater conditions on occurrence of selected agrochemicals

2019 ◽  
Vol 20 (2) ◽  
pp. 487-498
Author(s):  
Nevena Živančev ◽  
Srđan Kovačević ◽  
Marija Perović ◽  
Aleksandar Čalenić ◽  
Milan Dimkić
Keyword(s):  
Nitrate Concentration ◽  
Drainage System ◽  
The Self ◽  
Anoxic Conditions ◽  
Groundwater Samples ◽  
Alluvial Groundwater ◽  
The Republic ◽  
Groundwater Source ◽  
Agricultural Areas ◽  
Surface And Groundwater

Abstract The occurrence and mitigation of selected pesticides and nitrates in surface and groundwater samples from two alluvions in the Republic of Serbia are investigated in this study. The influence of aquifer conditions on the degradation processes of pesticides and nitrates is considered as a potential removal mechanism of compound residues in alluvial groundwater. Nitrate concentration was analyzed in 144 groundwater samples in the Kovin-Dubovac drainage system and 63 samples at the Ključ groundwater source. The occurrence of 15 pesticides was monitored in groundwater in a total of 34 samples in the Kovin-Dubovac area and 14 samples at the Ključ groundwater source. Concentrations of selected pesticides and nitrates were monitored in eight samples from the Danube in the Kovin-Dubovac area and 15 samples from Velika Morava at the Ključ groundwater source. Both selected locations are agricultural areas. Results show that concentrations of nitrates (NO3−) are much higher in oxic groundwater conditions compared with concentrations in typical anoxic conditions. The opposite is the case for the concentration of pesticides that occurred in surface and groundwater samples. These results are very important for a better understanding of the self-purification potential of alluvial aquifers and assessment of aquifer condition influence, especially oxic or anoxic conditions, on the occurrence and mitigation of selected agrochemical residues in groundwaters.

scholarly journals Residues of atrazine in agricultural areas of Serbia

2002 ◽  
Vol 67 (12) ◽  
pp. 887-892 ◽  
Author(s):  
S. Gasic ◽  
M. Budimir ◽  
Dragica Brkic ◽  
N. Neskovic
Keyword(s):  
Surface Water ◽  
Ground Water ◽  
Soil Type ◽  
Elisa Test ◽  
Soil Samples ◽  
Groundwater Samples ◽  
Almost All ◽  
Agricultural Areas ◽  
Surface And Groundwater

In this paper the results of a five-year investigation of the pollution of soil, as well as of surface and groundwater by atrazine are reported. The soil samples were collected from different localities, from the tillage level, at two depths (0?15 and 15?30 cm) during the period September-November from 1995 to 1999. The surface and groundwater samples were taken from the same localities during the same period. The residues were detected by the ELISA test. The results showed that almost all the analysed soil samples contained residues of atrazine. These quantities varied from 0.02 to 0.10 mg/kg (0?15 cm), and up to 0.05 mg/kg (15?30 cm) depending on the locality, soil type and the year of investigation. Concerning the residues in the surface and groundwater, it was found that most of the analysed samples contained atrazine residues. In the case of the surface water, the quantity of the residues ranged from 1.0 to 4.13 ?g/L whille the ground water contained up to 0.3 ?g/L depending on the locality and the year of investigation.

Ecological and hygienic assessment pollution of surface and groundwater in Transural Region Republic of Bashkortostan

2017 ◽  
pp. 14-17
Author(s):  
Z.B. Baktybaeva ◽  
R.A. Suleymanov ◽  
T.K. Valeev ◽  
N.R. Rakhmatullin
Keyword(s):  
Surface Water ◽  
Calcium Nitrate ◽  
Water Bodies ◽  
Drinking Water Contamination ◽  
Mining Areas ◽  
Relative Contribution ◽  
Quality Of Water ◽  
Republic Of Bashkortostan ◽  
The Republic ◽  
Surface And Groundwater

Carried out ecological and hygienic assessment of pollution of surface and groundwater of mining areas in the Republic of Bashkortostan. Revealed exceeding standards for fishery water bodies and drinking and cultural and community water use, which indicates the potential danger of surface water for the health of the region's population. The greatest relative contribution to the overall pollution of surface water bodies are making manganese (33,0–66,6 %), iron (9,1–15,6 %), calcium (6,5–11,7 %), lead (5,8– 7,2 %). The quality of water used for drinking purposes from decentralized water sources (boreholes, wells, springs), do not always correspond to the hygienic and sanitary-epidemiological requirements. In this case, the highest priority performance of drinking water contamination are increased stiffness, high content of iron, calcium, nitrate, presence cadmium, and hexavalent chromium.

Denitrification under high nitrate concentration and alternating anoxic conditions

1999 ◽  
Vol 33 (15) ◽  
pp. 3311-3320 ◽  
Author(s):  
D Bilanovic ◽  
P Battistoni ◽  
F Cecchi ◽  
P Pavan ◽  
J Mata-Alvarez
Keyword(s):  
Nitrate Concentration ◽  
Anoxic Conditions ◽  
High Nitrate Concentration

scholarly journals A new approach to solving the problem of road traffic injuries in agricultural areas

2001 ◽  
Vol 82 (5) ◽  
pp. 369-397
Author(s):  
I. G. Faizullin
Keyword(s):  
Traffic Accidents ◽  
Road Traffic ◽  
Severity Index ◽  
Road Traffic Accidents ◽  
New Approach ◽  
Accident Severity ◽  
Depth Study ◽  
The Russian Federation ◽  
The Republic ◽  
Agricultural Areas

In the Republic of Tatarstan from 1995 to the first half of 1999, there were 18,376 road traffic accidents (RTAs). They affected 23558 people, killed 3525 and injured 20033. The accident severity index averaged 14.8 during that period. Downward trends in the severity of accidents in 1995, 1996, 1997, 1998 were rather telling: 26.9; 17.6; 16.9; 13.7; 11.8. In spite of that, Tatarstan looks unfavorable against the background of other territories of the Russian Federation. In order to identify the cause-and-effect relations of the severity of traffic accidents, we conducted an in-depth study of them in the territory of cities and agricultural districts during this period.

scholarly journals Interpretation of the Principle of Municipality Self-Reliance in the Context of Constitutional Principles of Law

2020 ◽  
Vol 65 (1) ◽  
pp. 103-119
Author(s):  
Agnieszka Daniluk
Keyword(s):  
Separation Of Powers ◽  
Case Law ◽  
Public Law ◽  
The Self ◽  
Self Reliance ◽  
Democratic State ◽  
Inherent Feature ◽  
Subsidiarity Principle ◽  
The Republic ◽  
Judicial Protection

Abstract In the science of administrative and constitutional law, administration science and many other sciences, including political science, it is widely accepted that the basic, inherent feature of a municipality, deciding the essence of the territorial self-government unit as an entity of public administration, is the self-reliance it is entitled to. The self-reliance of territorial self-government units is even defined as a constitutional norm. In principle, self-reliance is perceived as a fundamental attribute of a decentralised public authority and constitutes one of the fundamental systemic principles of the Republic of Poland. It was formulated expressis verbis in art. 165 par. 2 of the Constitution of the Republic of Poland, which states that the self-reliance of territorial self-government units is subject to judicial protection, meaning that TSGUs can defend themselves against illegal attempts, not grounded in the law to interfere in their self-reliance. This protection seems to encompass both the private-law and public-law spheres of territorial self-government activity. The essence and guarantees of territorial self-government units’ self-reliance also arise from other constitutional principles, including the aforementioned decentralisation principle, subsidiarity principle, separation of powers, supremacy of the nation and democratic state under rule of law. The goal of this article is to interpret the principle of municipal self-reliance in the context of constitutional principles of law, in the light of the Polish Constitution. The studies were conducted based on analysis of normative acts, doctrinal views and case law.

scholarly journals The role of groundwater characteristics in catchment recovery from nitrate pollution

2012 ◽  
Vol 43 (5) ◽  
pp. 560-575 ◽  
Author(s):  
S. M. Dunn ◽  
W. G. Darling ◽  
C. Birkel ◽  
J. R. Bacon
Keyword(s):  
Dispersion Model ◽  
Age Dating ◽  
Groundwater Transport ◽  
Transit Times ◽  
Groundwater Samples ◽  
Nitrate Concentrations ◽  
Groundwater Dating ◽  
Different Levels ◽  
Surface And Groundwater

The effectiveness of measures to mitigate nitrate concentrations in surface and groundwater depends not only on their suitability for reducing nitrate leaching, but also on characteristics of groundwater transport that may cause a lag in achieving recovery. The recovery of a catchment within a Nitrate Vulnerable Zone in the east of Scotland has been assessed using a combined monitoring and modelling approach. Understanding of the dominant hydrological processes was developed through a programme of monitoring of surface and groundwater bodies. Age dating of groundwater samples, using dissolved atmospheric trace gases (CFCs and SF6) underpinned the conceptualisation of groundwater transport and a lumped dispersion model was applied to the data to estimate mean solute transit times. High spatial variability in the groundwater dating made it difficult to estimate catchment means, but the range was estimated to lie between 15 and 60 years. A catchment hydrology and nitrate model was used to explore the effect of simple changes in land management on reducing nitrate concentrations, as well as associated time scales of recovery. The study has helped improve understanding of the role of groundwater in catchment recovery and given an indication of the scale of agricultural changes required to achieve different levels of pollution mitigation.

Assessment of Capacity and Impacts of 8.5 MW Gas Fired Power Plant on Soil and Water Quality in Lekki, Lagos State Nigeria

2021 ◽  
Vol 43 ◽  
pp. 137-152
Author(s):  
Fagbenro Oluwakemi Kehinde ◽  
Adediji Victor Adebowale ◽  
Olaniyan Olatunji Sunday ◽  
Babatola Olumide
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Power Plant ◽  
Organic Carbon ◽  
Thermal Power ◽  
Groundwater Samples ◽  
Lagos State ◽  
Fe And Mn ◽  
Surface And Groundwater ◽  
Soil And Water

The aim of this study is to evaluate the potential impacts of 8.5 MW thermal power plant on soil and water quality within its location, Lekki area, Lagos State. The study area was geo-referenced using the existing map and Geographical Positioning System. Auger was used to sample soil at three different locations within the power plant. The soil samples were prepared and analyzed for the following parameters using standard analytical methods. The parameters include soil texture, Exchangeable cations and anions (H+, Na+, Ca2+, Mg2+, Cl- and SO42-) Nutrients compounds (NO3-, Total Nitrogen (TN), Organic Carbon (OC) and heavy metals (Fe, Cd, As, and Mn). Surface and groundwater samples were collected within the power plant in triplicate and analyzed for true colour, turbidity, conductivity, salinity, THC and Coliform. Dissolved Oxygen (DO), BOD5, Total Organic Carbon (TOC), Organic Matter (OM) and heavy metals (As, Ag, Fe and Mn) of water samples were also analyzed. The soil from the study area is loamy-sand in texture. The average As, Ag, Fe and Mn in surface and groundwater samples were 0.055, 0.025, 3.150, 0.735 and 0.12, 0.080, 6.440 and 0.180 mg/L, respectively. The gas-fired power plant has contaminated the soil and water within its premises with petroleum and heavy metals. The engine stack should be modified to minimize the pollution effects of the power plant on the environment.

Afterword Quilting the Black-Eyed Pea

2019 ◽  
pp. 257-272
Author(s):  
Michael O. West
Keyword(s):  
Social Contract ◽  
The United States ◽  
The Self ◽  
Declaration Of Independence ◽  
The Social ◽  
The Us ◽  
The Republic ◽  
To Come ◽  
A Charge

It is a truism that black folk in the United States are an international people. From the beginning of the republic, they were compelled by force of domestic (national) circumstances to internationalize their struggle for liberation, the founders having excluded them from the US social contract. The initial affidavit of exclusion is right there in the inaugural document of the social contract, the Declaration of Independence, which, ever so cryptically, damned the king of England for having “excited domestic insurrections amongst us.” This was an attack on the self-emancipatory activities of the enslaved descendants of Africa, who were exploiting the chaos caused by the anticolonial rebellion to claim their freedom, sometimes in cahoots with the British colonialists. Unable or unwilling to confront their own contradictions, the authors of the Declaration of Independence condemned the self-determination of the slaves as the doing of outside agitators, a charge that would be hurled at African American movements and activists for generations to come—up to the present time, in fact....

scholarly journals Physicochemical Analysis of Surface and Ground Water in Ugbomro and Iteregbi, Delta State, Nigeria

2020 ◽  
Vol 24 (3) ◽  
pp. 511-517
Author(s):  
O.B. Ovonramwen
Keyword(s):  
Oxygen Demand ◽  
Physicochemical Analysis ◽  
Total Alkalinity ◽  
World Health ◽  
Total Hardness ◽  
Need For Treatment ◽  
Environmental Status ◽  
Groundwater Samples ◽  
Health Organization ◽  
Surface And Groundwater

Physicochemical analyses of surface and groundwater samples from eleven different locations in Ugbomro and Iteregbi, Delta State, Nigeria were sampled and analyzed for physicochemical parameters according to standard methods for the examination of water and wastewater. The following  mean and standard deviation were obtained from the groundwater of the communities: temp (oC) 22.46 ± 0.50 and 23.23 ± 0.99, pH 6.63 ± 0.68 and6.69 ± 0.24, dissolved oxygen (DO) (mg/L) 5.91 ± 0.46 and 5.73 ± 0.46, chemical oxygen demand (COD) (mg/L) 4.24 ± 0.01 and 4.43 ± 0.10, biochemical oxygen demand (BOD) (mg/L) 3.51 ± 0.38 and 3.84 ± 0.21, Turbidity (NTU) 1.22 ± 1.07 and 3.56 ± 0.77, electrical conductivity (EC) (μs/cm) 748.9 ± 215.79 and 786.67 ± 226.77, color (TCU) 1.22 ± 2.12 and 6.11 ± 2.11, total alkalinity (TA) (mg/L) 6.22 ± 7.38 and 14.11 ± 11.19, HCO3- (mg/L) 6.22 ± 7.38 and 14.11 ± 11.19, NO3 - (mg/L) 1.13 ± 0.62 and 2.89 ± 1.25, total solids (TS) (mg/L) 489.09 ± 180.17 and 664.95 ± 373.37, total suspended solids (TSS) (mg/L) 32.25 ± 24.29 and 123.86 ± 82.79, total dissolved solids (TDS) (mg/L) 456.78 ± 163.73 and 542.20 ± 450.66, Cl- (mg/L) 21.20 ± 3.20 and 20.10 ± 3.89, total hardness (TH) (mg/L) 26.67 ± 22.83 and 46.78 ± 36.17, Na (mg/L) 1.26 ± 0.06 and 1.16 ± 0.04, K (mg/L) 0.04 ± 0.01 and 0.06 ± 0.03, Mg (mg/L) 4.32 ± 3.23 and 6.96 ± 5.49, Ca (mg/L) 8.68 ± 9.35 and 18.12 ± 13.71 respectively. The results obtained were subjected to statistical analysis and compared with the standard set by the Standards Organization of Nigeria (SON) and the World Health Organization (WHO) for water samples. Some of the parameters did not meet the standards, hence the need for treatment. The present physio-chemical analyses of surface and groundwater quality of the two neighboring university areas, Ugbomro and Iteregbi, were done to assess the environmental status of  the environment before socio-economic impacts. Keywords: physicochemical, surface water, groundwater, water quality

scholarly journals The impact of linear investments on the spatial structure of agricultural regions

2019 ◽  
Vol 86 ◽  
pp. 00011
Author(s):  
Edward Preweda
Keyword(s):  
Spatial Structure ◽  
Rural Areas ◽  
Negative Impact ◽  
Drainage System ◽  
Organic Farms ◽  
The Cost ◽  
Agricultural Areas ◽  
Agricultural Regions ◽  
The Impact ◽  
The Village

Linear investments cause irreversible changes in the existing shape and way of using the land located alongside it. In the case of the construction of the highway, these lands are mostly located in rural areas and prior to construction, they were used mostly in agriculture. Losses resulting from such investments affect the natural environment and landscape. Along the impact zone wind conditions change, also exhaust emissions and noise increase. Investors try to avoid the design of wide protection zones of greenery, due to the cost of buying a larger area of land and they usually use it only when it is necessary. Severe ecological losses result from land degradation, disturbances in the drainage system and changes in water relations. Such investments also have a negative impact on the profitability of agricultural holdings, in particular organic farms. The market value of land adjacent to the motorway is also decreasing. Often, on both sides of the motorway there remain land with a small area, access to the ground is difficult or even impossible. In order to reduce the negative impact of linear investments on the spatial structure of agricultural areas, infrastructure integration is carried out. The implementation of consolidations related to the construction of motorways in Poland is not a common and frequent phenomenon, which lacks concrete plans and schemes of actions. The paper presents the objectives of consolidation in the area of the village of Szczepanow in the Lesser Poland Voivodeship.

Sign in / Sign up

Export Citation Format

Share Document