The impact of trace metals on wild fish living in Crisul-Negru river from North-Western Romania: Bioaccumulation and histopathological biomarkers

2015 ◽  
Vol 238 (2) ◽  
pp. S128
Author(s):  
P. Albu ◽  
B. Onita ◽  
E. Baranyai ◽  
S. Harangi ◽  
S. Keki ◽  
...  
Keyword(s):  
Trace Metals ◽  
Wild Fish ◽  
The Impact ◽  
North Western ◽  
Western Romania

scholarly journals Considerations for determining ‘optimal nutrition’ for copper, zinc, manganese and molybdenum

1999 ◽  
Vol 58 (2) ◽  
pp. 497-505 ◽  
Author(s):  
Mark L. Failla
Keyword(s):  
Trace Metals ◽  
Daily Intake ◽  
Functional Markers ◽  
Dietary Intakes ◽  
Normal Range ◽  
Copper Zinc ◽  
Daily Intakes ◽  
Zn Status ◽  
The Impact ◽  
Cu And Zn

Defining optimal dietary intakes of Cu and Zn throughout the life cycle continues to present a considerable challenge for nutrition scientists. Although the daily intake of these micronutrients is below that currently recommended for many groups, traditional biochemical indicators of nutritional status for these trace metals largely remain within the normal range. Thus, it is unclear whether the recommended daily intakes may be unnecessarily high, or if the commonly-used markers simply lack the necessary sensitivity and specificity that are required for accurately assessing Cu and Zn status. The increasing number of reports that daily supplements with these trace metals enhance the activities of selective metalloenzymes and specific cellular and organ processes further points out the need to differentiate between meeting the requirement and providing optimal nutriture. Results from recent studies suggesting that alternative molecular and functional markers possess sufficient sensitivity to better assess Cu and Zn status are discussed. Likewise, recent studies evaluating the impact of very low and excessive levels of dietary Mn and Mo on selective biochemical and metabolic indicators are reviewed.

scholarly journals Food composition of some low altitude Lissotriton montandoni (Amphibia, Caudata) populations from North-Western Romania

2010 ◽  
Vol 62 (2) ◽  
pp. 479-488 ◽  
Author(s):  
S.D. Covaciu-Marcov ◽  
A.Ş. Cicort-Lucaciu ◽  
I. Sas ◽  
Diana Cupşa ◽  
Eva Kovacs ◽  
...  
Keyword(s):  
Prey Item ◽  
Food Composition ◽  
Aquatic Animals ◽  
Food Components ◽  
Low Altitude ◽  
Percentage Abundance ◽  
North Western ◽  
Western Romania

The diet of some populations of Lissotriton montandoni from north-western Romania is composed of prey belonging to 20 categories. The food components of the Carpathian newts are similar to those of other species of newts. Most of the prey are aquatic animals, but terrestrial prey also has a high percentage abundance. The consumed prey categories are common in the newts' habitats as well, but in natural ponds the prey item with the highest abundance in the diet is not the most frequent one in the habitat. Thus, although the Carpathian newts are basically opportunistic predators, they still display a certain trophic selectivity.

scholarly journals Nutritional immunity: the impact of metals on lung immune cells and the airway microbiome during chronic respiratory disease

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Claire Healy ◽  
Natalia Munoz-Wolf ◽  
Janné Strydom ◽  
Lynne Faherty ◽  
Niamh C. Williams ◽  
...  
Keyword(s):  
Immune System ◽  
Trace Metals ◽  
Lung Disease ◽  
Chronic Lung Disease ◽  
Immune Cells ◽  
Immune Cell ◽  
Redox Activity ◽  
Nutritional Immunity ◽  
Airway Microbiome ◽  
The Impact

AbstractNutritional immunity is the sequestration of bioavailable trace metals such as iron, zinc and copper by the host to limit pathogenicity by invading microorganisms. As one of the most conserved activities of the innate immune system, limiting the availability of free trace metals by cells of the immune system serves not only to conceal these vital nutrients from invading bacteria but also operates to tightly regulate host immune cell responses and function. In the setting of chronic lung disease, the regulation of trace metals by the host is often disrupted, leading to the altered availability of these nutrients to commensal and invading opportunistic pathogenic microbes. Similarly, alterations in the uptake, secretion, turnover and redox activity of these vitally important metals has significant repercussions for immune cell function including the response to and resolution of infection. This review will discuss the intricate role of nutritional immunity in host immune cells of the lung and how changes in this fundamental process as a result of chronic lung disease may alter the airway microbiome, disease progression and the response to infection.

scholarly journals Changes in Potential Evaporation in the Years 1952–2018 in North-Western Poland in Terms of the Impact of Climatic Changes on Hydrological and Hydrochemical Conditions

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 877 ◽  
Author(s):  
Monika Okoniewska ◽  
Danuta Szumińska
Keyword(s):  
Water Resources ◽  
Air Temperature ◽  
21St Century ◽  
Climatic Factors ◽  
Potential Evaporation ◽  
Relative Air Humidity ◽  
Chemical Conditions ◽  
Physical And Chemical ◽  
The Impact ◽  
North Western

The paper analyses changes in potential evaporation E0 (mm) in north-western Poland in the years 1952–2018. E0 (mm) has been calculated according to Ivanov’s formula based on the monthly values of air temperature (t, °C) and relative air humidity (f, %) for six weather stations of the Institute of Meteorology and Water Management. The data were collected using the Statistica software ver. 13 and the QGIS software ver. 3.80. The results indicate statistically significant trends in the increase of E0 during the period 1952–2018, and that it is particularly high during the spring and summer months, which should be associated with a statistically significant increase in air temperature and a decrease in relative humidity at all examined stations. The results also indicate an exceptionally high increase in evaporation since the end of the 20th century and in the 21st century, which reflects a potentially higher risk of permanent changes in hydrological conditions. The research results point to the major role of climatic factors in the often-dramatic decreases in water resources observed in the 21st century, particularly in lakes and small watercourses. The progressing reduction of water resources may cause permanent changes in physical and chemical conditions in waterbodies.

scholarly journals Characteristics of Atmospheric Metalliferous Particles during Large-Scale Fireworks in Korea

2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Zang-Ho Shon ◽  
Ju-Hee Jeong ◽  
Yoo-Keun Kim
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
Large Scale ◽  
Background Level ◽  
Trace Metal Concentration ◽  
Urban Background ◽  
Ambient Concentration ◽  
Local Background ◽  
The Impact ◽  
Concentration Levels

The effect of large-scale firework events on urban background trace metal concentrations was investigated using 24 hr data collected over 3 days at three sites in Busan Metropolitan City, Republic of Korea, during the falls (Oct.) of 2011–2013. The firework events increased local background concentrations of trace metals as follows: K (1.72 times), Sr (2.64 times), As (2.86 times), Pb (2.91 times), and Al (5.44 times). The levels of some metals did not always drop to background level one day after the firework event. The contribution of fireworks to trace metal concentration levels (and emissions) for 2011 event was negligible compared to 2012 and 2013 events due to different meteorological conditions (precipitation). In addition, the impact of firework events on the ambient concentration levels of trace metals was likely to be different depending on their chemical speciation. The impact of firework events in Busan on urban air quality (trace metal) was less intense compared to other similar festivals worldwide. The largest emission of trace metals and elements from firework burning was represented by K (128–164 kg), followed by Pb, Cd, Cu, Mg, Ba, As, Al, Ga, Co, and Na.

scholarly journals Susceptibility to Degradation, the Causes of Degradation, and Trophic State of Three Lakes in North-West Poland

Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1635 ◽  
Author(s):  
Agnieszka Tórz ◽  
Małgorzata Bonisławska ◽  
Agnieszka Rybczyk ◽  
Arkadiusz Nędzarek ◽  
Adam Tański
Keyword(s):  
Aquatic Ecosystem ◽  
Trophic State ◽  
Eutrophic Lake ◽  
Morphometric Characteristics ◽  
Small Lakes ◽  
Effective Protection ◽  
North West ◽  
The Impact ◽  
North Western ◽  
Phosphorus Levels

Effective protection of lakes against degradation requires a detailed recognition of the factors leading to their eutrophication. This also pertains to small lakes, which constitute an important element of various ecosystems and are crucial for maintaining biodiversity. Therefore, the aim of the study is to determine the trophic state as well as the susceptibility to degradation of three small lakes in north-western Poland: Maszewo, Starzyca, and Nowogardzkie. This study analyzes the morphometric characteristics of the lakes, the impact of the catchment, their actual trophic state, and phosphorus levels. The analysis showed varying regeneration potentials of the lakes. Maszewo Lake is eutrophic-hypertrophic, nonresilient, strongly exposed to influence from the catchment, with phosphorus levels within the norm. Starzyca Lake is a eutrophic lake, not very resilient to the influence of the catchment, with excessive phosphorus levels. Nowogardzkie Lake is a eutrophic lake with moderate resilience to degradation, but with excessive phosphorus levels, which endangers the functioning of this aquatic ecosystem. In all the lakes, phosphorus supply was predominantly internal. Restoration of these lakes could be performed by completely cutting off the inflow of nutrients, as well as reclamation involving the deactivation of phosphorus (e.g., by precipitation) as well as the removal of the bottom sediments responsible for the internal supply of phosphorus.

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