scholarly journals Lead Solubility in the Kırklareli Stream, Turkey

Author(s):  
Sultan Kıymaz ◽  
Hacer Gülocak ◽  
William F. Bleam

The research was conducted in the Kırklareli stream, which flows southwest through the city of the same name toward the village of Kavaklı. The aim of the study is to evaluate water analysis results and assess the potential that the European Union drinking water standard for lead can be achieved in the Kırklareli stream by reliance on the low solubility of lead phosphate minerals. The present study used Visual MINTEQ 3.1 for all water chemistry simulations. The European Union drinking water standard for lead, which is 10 μg L−1, is exceeded at least once and as many as three times at seven of the ten sites during the 2018 sampling season. Although the database solubility of hydroxypyromorphite is exceeded in most samples, it appears this may be the result of major ion substitutions in the hydroxypromorphite that forms in the Kırklareli stream which increases the effective solubility of lead in the stream.

Author(s):  
John Gray ◽  
Mike Baynham

This chapter considers the phenomenon of queer migration from a linguistic perspective, paying particular attention to the constitutive role of spatial mobility in narrative and its role in the construction of queer migrant identities. The chapter begins by looking at the way in which queer migration has been discussed in the literature and then moves on to address three different types of queer migration in greater depth: migration within national borders from the village/countryside to the city; migration between cities in member states within the context of the European Union; and finally, asylum-seeking within the context of migration from the Global South to the Global North. The chapter concludes by suggesting that queer migration is a complex phenomenon in which the intersection of sexuality, gender identity, desire, affect, abjection, economic necessity, class, politics, and fear for one’s life combine in ways that are unique in the lives of individual migrants.


2013 ◽  
Vol 7 (1) ◽  
pp. 106-118

The formation of Disinfection By-Products (DBPs) in drinking water results from the reaction of chlorine or other disinfectants added to the water with naturally occurring organic materials, and has raised concerns during the last decades because these compounds are harmful for human health. During the present work, the formation of different categories of DBPs was investigated in four water treatment plants (WTP) using chlorine as disinfectant, and in selected points of the distribution network of Athens, Greece, which is supplied from these four WTP, during a period of ten years. The concentrations of DBPs were generally low and the annual mean concentrations always well below the regulatory limit of the European Union (EU) for the total trihalomethanes (TTHMs). The haloacetic acids (HAAs) have not been regulated in the EU, but during this investigation they often occurred in significant levels, sometimes exceeding the levels of TTHMs, which highlights the importance of their monitoring in drinking water. Apart from THMs and HAAs, several other DBPs species were detected at much lower concentrations in the chlorinated waters: chloral hydrate, haloketones and, in a limited number of cases, haloacetonitriles.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Vinko Miličević ◽  
Danijel Knežević ◽  
Zoran Bubaš

The problems in this paper belong to the field of migration and economy. The connection between migration and the economy has been proven on a global level, and as far as the Republic of Croatia is concerned, it is especially important to observe it through the City of Zagreb, which is the most important migration and economic center in the Republic of Croatia. Also, the accession of the Republic of Croatia to the European Union emphasized the observation and research of this connection because it created the preconditions for freer movement and employment of the population of the Republic of Croatia and the City of Zagreb within the European Union. The aim of this paper is to determine the contribution of migration to the economic growth of the City of Zagreb. The hypothesis presented in the paper is that there is a significant contribution of migration to the economic growth of the City of Zagreb. The disposition of the paper consists of six parts. The introduction explains the relevance of the topic, states the aim of the paper and hypotheses, explains the empirical part, the contribution of the paper and the disposition. The second part of the paper refers to the theoretical framework of the impact of migration on economic growth. The third part of the paper presents the migration processes of the City of Zagreb in the period from 2011 to 2018. The fourth part deals with economic activity in the City of Zagreb in the period from 2011 to 2017. The observed indicators of economic activity in the City of Zagreb are GDP and GDP per capita, and the graph in this part of the paper shows that GDP and GDP per capita in the observed period are higher at the end of the period than at the beginning. The fifth part of the paper refers to the empirical research of the contribution of migration to the economic growth of the City of Zagreb. The empirical part of the paper is based on correlations and regression analyses. This paper proves the hypothesis because the results indicate a significant impact of the variables of total and external migration on the GDP of the City of Zagreb and GDP per capita of the City of Zagreb. Decision-makers in the City of Zagreb can use the results of the research as a basis for maximizing the economic benefits they can get from migration. The conclusion provides an overview of the aim of the work, the results of the research, the limitations, the implications and the recommendations for future research.


2020 ◽  
Vol 128 (1) ◽  
pp. 017001 ◽  
Author(s):  
Iro Evlampidou ◽  
Laia Font-Ribera ◽  
David Rojas-Rueda ◽  
Esther Gracia-Lavedan ◽  
Nathalie Costet ◽  
...  

2018 ◽  
pp. 56-60
Author(s):  
Ambarkova Vesna

The aim of this study is to determine the correlation between the DMFT index of 12-year-old children and the concentration of fluorine in drinking water from the populated areas where children live. Material and method: In the examination, 85children were enrolled, out of 2 central and 2regional primary schools, at which the DMFT index was determined. The children live in 2 different cities and 2 different villages. Four water samples were taken from the examined area to determine the fluorine concentration by using the electrochemical method using the pH/ISE Meter-Thermo-Orion with a special F-electrode (Thermo Orion Ion Plus Fluoride Electrode) at the Institute for public health. Spearmans method was used to determine the correlation between the specified variables. Results: The total number of children in the examined sample was 85, out of which45 were male and 40 were female. The average DMFT index in this group of children was 2.75 with a standard deviation of ±2.56. Maximum concentration of fluorine in drinking water of 0.39ppmF was determined in the village Vinicani, while the minimum (0.17ppmF) in the city Veles and (0.20 ppmF) in the village Melnica. Correlation of the DMFT index in children from the Vardar region and the concentration of fluorine in the drinking water has a negative, indirect correlation, with the value of the coefficient r=-0.393. Conclusion: The correlation between the DMFT index and the concentration of drinking water is a negative, indirect and correlation is highly significant


2006 ◽  
Vol 30 (4) ◽  
pp. 204-218
Author(s):  
Nijolė Steponaitytė

In spring of 2005 Kaunas city became a partner in the project “Baltic Fort Route“ of the program INTERREG IIIB BSR financed by the European Union. The aim of the project is preservation and effective adaptation of fortress territories for tourism. On the other hand, it should be observed that free land areas in Kaunas and around it are being intensively assimilated what may do damage to the defence objects of Kaunas Fortress and thus deteriorate their visual significance. The limits of landscape modifications should be clearly determined. During the construction process of the Fortress the peculiarities of the geomorphological system and hydrographic net of Kaunas environs were well explored and considered. The whole landscape of Kaunas environs was reconstructed according to the needs of the Fortress. The defence objects of the Fortress still have a great effect on the landscape of the city and its surrounding territories. Major part of the territories of the Fortress objects were turned into the areas of green plantation. According to the visual influence of the forts and fortifications on the environment, the mentioned objects may be divided into groups. The author presents proposals on the management of the defence objects and areas of green plantation of the Fortress that could provide for maximal possibilities in respecting their authentic view.


2019 ◽  
Author(s):  
Ewan McGaughey

The chasm between our political democracy and our economic absolutism is the single most important issue of our time. Today, in the European Union, a tiny group of asset managers and banks control most of the votes in the economy. They control shares in corporations, which control our workplaces, our pay, our security in retirement and our environment.These asset managers and banks oppose trade unions and fair wages. They support escalating pay for billionaire CEOs. They oppose action to stop discrimination at work and the gender pay gap. They oppose meaningful action to end climate damage. They are tearing our society and our planet apart.The voting power asset managers and banks control comes from other people’s money. It doesn’t belong to them. It belongs to us. It comes from Europeans saving for retirement, in pension plans, in life insurance, or mutual funds. But the share of workers’ capital in the stock market has been shrinking since the 1980s. Inequality has skyrocketed as workplace democracy and collective bargaining have been attacked. This has meant a declining share of income for labour, and growing share for the City, Frankfurt, La Défense or Milan.This is why we need a new Economic Democracy Plan for Europe. This paper contains a draft Economic Democracy Directive for the European Union that would democratise the economy, through votes at work, in capital, in public services, and secure public control of enterprises that drive climate damage.


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