scholarly journals Metal bioaccumulation, translocation and phytoremediation potential of some woody species at mine tailings

2021 ◽  
Vol 49 (4) ◽  
pp. 12487
Author(s):  
Duško L. BRKOVIĆ ◽  
Ljiljana S. BOŠKOVIĆ RAKOČEVIĆ ◽  
Jelena D. MLADENOVIĆ ◽  
Zoran B. SIMIĆ ◽  
Radmila M. GLIŠIĆ ◽  
...  
Keyword(s):  
Plant Species ◽  
Woody Species ◽  
The European Union ◽  
Metal Bioaccumulation ◽  
Salix Alba ◽  
Limit Values ◽  
Salix Caprea ◽  
Limit Value ◽  
The Republic ◽  
Selection Of

This study aimed to determine the concentrations of ten metals (Mn, Ni, Ca, Mg, Fe, Zn, Cr, Pb, Cd, Cu) in the soil at depths of 10 and 20 cm and selected plant species (Populus nigra L., Fraxinus ornus L., Salix alba L., Salix caprea L.), as well as to assess the ability of these plants of metal bioaccumulation, translocation and phytoremediation on the location of the mine pit and flotation tailings of the selected mine (in the center of the Republic of Serbia). The concentrations of Pb and Cu in the investigated soil at a depth of 10 cm were above remediation values stated in the regulations of the Republic of Serbia. At the same time, the concentration of Cd, Cr, Pb and Cu was above the limit values in both of the examined soil depths, while Ni in the soil at a depth of 10 cm was above the limit value determined in the Directives of the European Union. The species F. ornus shows the ability to phytoextract Ca, species P. nigra Zn, Ca and Cd, while both Salix species have the capacity to phytoextract Zn and Ca. The results showed that species S. alba is an efficient bioaccumulator of Mn, Fe, Cr, Pb, Zn and Ca, S. caprea of Fe, Cu, Cr, Mg and Pb, and P. nigra of Mn and Cd. The bioaccumulation and translocation of the investigated elements depend on plant species and their organ. The selection of plant species adequate for remediation should take this into account.

scholarly journals SADRŽAJ METALA U ZEMLJIŠTU I ODABRANIM BILJKAMA NA JALOVIŠTU FLOTACIJE RUDNIK DOO „RUDNIK"

2021 ◽  
Author(s):  
Snezana Brankovic ◽  
◽  
Radmila Glisic ◽  
Duško Brkovic ◽  
Gorica Đelic ◽  
...  
Keyword(s):  
Plant Species ◽  
Limit Values ◽  
Tussilago Farfara ◽  
Clematis Vitalba ◽  
The Republic

The aim of this study was to determine the concentration of some metals (Ca, Mg, Mn, Fe, Zn, Ni, Cr, Cd) in the soil and species of Tussilago farfara L. and Clematis vitalba L. on the tailings and flotation of the mine DOO "Rudnik". Concentrations in the soil were: Pb and Cu - higher than the maximum allowed, limit and remediation values; Cd, Cr and Ni - higher than the maximum allowed and limit values, and Zn higher than the limit values (according to the regulations of the Republic of Serbia). Better bioaccumulation of all tested metals was shown by T. farfara species, especially leaves for Zn. The results indicate the possible use of aboveground parts of both plant species in the revitalization of tailings by bioaccumulation of tested metals.

scholarly journals Improving Air Quality in the Po Valley, Italy: Some Results by the LIFE-IP-PREPAIR Project

Atmosphere ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 429 ◽  
Author(s):  
Katia Raffaelli ◽  
Marco Deserti ◽  
Michele Stortini ◽  
Roberta Amorati ◽  
Matteo Vasconi ◽  
...  
Keyword(s):  
Air Quality ◽  
Northern Italy ◽  
The European Union ◽  
Limit Values ◽  
Po Valley ◽  
Limit Value ◽  
Northern Regions ◽  
Environmental Agencies ◽  
The Impact ◽  
The Eu

The Po Valley (Northern Italy) represents an important exceedance zone of the air-quality limit values for PM (particulate matter), NO2 (nitrogen dioxide) and O3 (ozone). This area covers the territory of most Italian northern regions and includes several urban agglomerates, such as Milan, Turin, Venice and Bologna. The area is densely populated and heavily industrialized. The paper summarizes the assessment of the impact of the current (2013) and future (2025) emissions and of the meteorological conditions on the air quality of the Po Valley. This study is one of the first outcomes of the EU LIFE-IP Clean Air Program Po Regions Engaged to Policies of Air (PREPAIR) project. The project, involving administrations and environmental agencies of eight regions and three municipalities in Northern Italy and Slovenia, started in 2017 and will end in 2024. Future emission scenarios consider the emissions reduction due to the air-quality action plans of the regions involved, of the agreements between the national authorities and regional administrations and of the PREPAIR project itself, in the overall context of the application of the current legislation of the European Union. The combination of these measures will lead to the reduction of direct emissions of PM10 in the Po Valley and of the main precursors emitted in the area (NOx, nitrogen oxides and NH3, and ammonia) by 38% for PM10, 39% for NOx and 22% for NH3, respectively. This lowering corresponds to a reduction of about 30.000 tons of primary PM10, 150.000 tons of NOx, 54.000 tons of NH3 and 1700 tons of SO2. The results show that these expected reductions should allow us to achieve the EU PM10 limit value in the Po Valley by the year 2025.

scholarly journals INTERNATIONALIZATION OF RETAIL – COMPARATIVE ANALYSIS OF CROATIA AND SERBIA

2017 ◽  
pp. 007
Author(s):  
Svetlana Sokolov Mladenović ◽  
Đorđe Ćuzović
Keyword(s):  
European Union ◽  
Comparative Analysis ◽  
World Market ◽  
Turn Of The Century ◽  
The European Union ◽  
The World ◽  
The Subject ◽  
The Republic ◽  
Selection Of ◽  
The Way

Globalization and integration of the world market leads to internationalization of retail and overall trade. At the turn of the century, internationalization has become a widespread retail phenomenon. Thus, it has become a permanent and inevitable process. Internationalization of trade, especially retail, covers a large number of countries, but with varying intensity. The subject of this work is the achieved level of internationalization of trade, especially retail, on the markets of the Republic of Croatia and the Republic of Serbia. Arguments for the selection of these countries are numerous. One of them is the fact that both countries originated from the former Yugoslav federation. At the same time, Croatia is the newest member of the European Union (as of 1 July 2013), and Serbia signed the Stabilization and Association Process, and is on the way of opening membership negotiations. For these reasons, Croatian experience can serve Serbia as a landmark in the implementation of activities in the segment of trade and its internationalization. The paper aims at mapping Serbian activities in the process of further internationalization of retail.

scholarly journals Foraging Behavior of Goats Browsing in Southern Mediterranean Forest Rangeland

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 196 ◽  
Author(s):  
Youssef Chebli ◽  
Samira El Otmani ◽  
Mouad Chentouf ◽  
Jean-Luc Hornick ◽  
Jérôme Bindelle ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Foraging Behavior ◽  
Plant Species ◽  
Woody Species ◽  
Optimal Foraging Theory ◽  
Mediterranean Forest ◽  
Intake Rate ◽  
Diet Diversity ◽  
Southern Mediterranean ◽  
Selection Of

Mediterranean forest rangelands offer an important feed source for goats. Concerns about grazing strategies and management schemes in order to ensure the rangeland sustainability of Southern Mediterranean forest have revived interest in the foraging behavior of goats. This study was conducted to investigate the seasonal changes of feeding behavior of grazing goats in the Southern Mediterranean forest rangeland of Northern Morocco during two consecutive years beginning in 2016. The direct observation method was used to compare diet composition, intake rate, and diet selectivity of goats during three seasons (spring, summer, and fall). Bite mass of each plant species selected by goats was estimated using hand-plucked simulation. The optimal foraging theory was used as a tool to explain the goats foraging decisions. Bite mass range was extremely wide and varied seasonally. The goats’ diet was largely composed of Cistus spp., Lavandula stoechas, Quercus spp., and Myrtus communis. The result shows that the smaller the bite mass, the higher the biting rate, leading to increased short term intake rates. The selection of various plant species during fall and summer enlarged the diet diversity of goats. As expected, goats preferred trees and some shrubs despite their low availability. Consequently, the most available species is not necessarily the most positively selected. Particular high and positive selection of Quercus suber was observed over seasons. The outcomes confirm the high adaptability and ability of goats to select a woody species across seasons. Knowledge about forage availability and the feeding behavior of goats could be used as the first guide for rangeland managers to ensure herd and forest sustainability.

Whole Body Vibration Measurements and Calculations of the Daily 8-hour Values in Finnish Working Environments

2005 ◽  
Vol 24 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Ykä Marjanen
Keyword(s):  
Whole Body ◽  
The European Union ◽  
Exposure Limits ◽  
Simple Task ◽  
Limit Values ◽  
Daily Exposure ◽  
Limit Value ◽  
Working Environments ◽  
Exposure Limit ◽  
Action Value

The European Union Physical Agents Directive (vibration) sets vibration exposure limits for an employer. The measured values from different work phases should be time weighted and summed together to represent a daily 8-hour exposure value. The directive has two limit values, the daily exposure action value and the daily exposure limit value. For the employer the greatest concern is to comply with the exposure limit value, but also exceeding the action value will cause implications. To calculate the daily 8-hour value is not a simple task, because there are normally several different work phases that the worker does in a normal day. Also the assessment of measurements of the vibration levels have to be made in real working environments. The work phases need to be calculated correctly to get the representative daily value. Also breaks and other non-work operations need to be included. This will make the complete assessment very difficult without proper knowledge. In this study a large number of measurements from different mobile work machines were made to establish whether the daily values would exceed the limit values. Analyses were made using three examples to show how the employer can use the standard and directive to assess the daily exposure values or times. The results were largely dependent on the work pattern and the dominant levels.

Wyzwanie dla tożsamości międzynarodowej Macedonii – grecko macedoński spór o nazwę państwa

2019 ◽  
Vol 17 (1) ◽  
pp. 333-350
Author(s):  
Artur Adamczyk ◽  
Mladen Karadzoski
Keyword(s):  
The European Union ◽  
Small Country ◽  
Main Obstacle ◽  
The Road ◽  
Republic Of Macedonia ◽  
The Republic ◽  
The Government ◽  
On The Road ◽  
International Identity ◽  
Of Greece

The main purpose of the article is to present how the Greek- -Macedonian naming dispute influenced the problem of implementation the international identity of Macedonia. Despite the initial problems of the government in Skopje related to determining their international identity, Macedonians managed to define the principles regarding the identification of a new state on the international stage. As a small country with limited attributes to shape its international position, Macedonia has basically been determined to seek guarantees for its existence and security in stable and predictable European international structures such as NATO and the European Union. The main obstacle for Macedonians on the road to Euro-Atlantic structures was the veto of Greece, a member of these organizations, resulting from Athens’ refusal to accept the name the Republic of Macedonia. The Prespa Agreement of 2018 gave a new impetus to the realization of the international identity of North Macedonia.

Latviešu valodas kā svešvalodas apguve Āzijā

2020 ◽  
pp. 55-62
Author(s):  
Inga Laizāne
Keyword(s):  
Higher Education ◽  
20Th Century ◽  
Higher Education Institutions ◽  
State University ◽  
The European Union ◽  
Self Directed Learning ◽  
Language And Culture ◽  
Study Programs ◽  
Directed Learning ◽  
The Republic

The Latvian language as a foreign language (LATS) is learned both in Latvia and abroad. It can be done in higher education institutions, as well as in different courses and self-directed learning. Outside Latvia, there are many countries and higher education institutions where it is possible to acquire LATS. In some higher education institutions, the Latvian language has been taught since the beginning of the 20th century. The oldest LATS teaching traditions are in North America, Germany, Sweden, Lithuania and Australia. In some universities, such as Stockholm University, Masaryk University, Saint Petersburg State University, etc., academically strong study programs in Baltic Studies were established. Over time, study programs have been closed for various reasons, at most leaving the Latvian language as an optional course. At some universities, the Latvian language course has been discontinued. Although in some higher education institutions outside Latvia LATS could be acquired starting from the beginning of the 20th century, the most significant interest in the Latvian language was after the restoration of independence of the Republic of Latvia. Then many higher education institutions in Europe established Latvian language and culture study programs. This interest was related to the geopolitical situation. People tried to get to know the post-Soviet countries through the language. When Latvia joined the European Union, interest in the Latvian language decreased in Europe. Nowadays, interest in the Latvian language has increased in Asia, especially in China. In Asia, it is possible to acquire the Latvian language in China and Japan. There are established different Latvian language bachelor programs in universities of China while in Japan the Latvian language is taught for somebody interested in Latvian culture and traditions more than in the Latvian language.

scholarly journals The use of cement concrete pavements for roads, depending on climatic conditions

2019 ◽  
Vol 13 (3) ◽  
pp. 235-240
Author(s):  
Iryna Solonenko
Keyword(s):  
European Union ◽  
Statistical Models ◽  
Road Network ◽  
The European Union ◽  
Rational Selection ◽  
Cement Concrete ◽  
The Road ◽  
Road Pavement ◽  
Operational Characteristics ◽  
Selection Of

The development of road network infrastructure is an important component of the economic development of the European Union. Updating of the road network contributes to the integration of the economies of countries into a coherent whole. The road network provides the free movement of citizens, the movement of goods and the effective implementation of various services. The increase in the length of the road network leads to an increase in the financial and material costs necessary to ensure its maintenance and repair. One of the ways to reduce costs is by strengthening the physic-mechanical and operational characteristics of the pavement due to the widespread use of cement concrete. The quality of the pavement of cement concrete depends largely on the rational selection of its composition. This allows a significant increase in the durability of road pavement. The purpose of the research was: the development of recommendations for the rational selection of the composition of the road pavement material of cement concrete, aimed at upgrading longevity, and taking into account its frost resistance grade. According to the goal, the following tasks were developed: the analyses of the climatic zones in which the road network of the European Union is located; the development of a research plan, a selection of the response function and influence factors; the study of physico-mechanical and operational characteristics of the researched material of road pavement; on the basis of the obtained data, the calculation of the complex of experimental-statistical models, which describe the physico-mechanical and operational characteristics of the road pavement material; on the basis of experimental statistical models, a method was proposed for selecting the rational compositions of the cement concrete pavement road material depending on the conditions of its application. The results presented in the article can be used in engineering and scientific practice for the selection of road pavement from cement concrete for highways.

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