Copper, Manganese and Zinc Bioaccumulation in Some Common Poaceae Species Along Romanian Black Sea Coast

2017 ◽  
Vol 68 (11) ◽  
pp. 2488-2491
Author(s):  
Bogdan Stefan Negreanu Pirjol ◽  
Ticuta Negreanu Pirjol ◽  
Dan Razvan Popoviciu
Keyword(s):  
Heavy Metals ◽  
Black Sea ◽  
Absorption Spectrometry ◽  
High Metal Content ◽  
Black Sea Coast ◽  
Copper Manganese ◽  
Hordeum Murinum ◽  
High Metal ◽  
Leymus Racemosus ◽  
Accumulation Coefficients

Copper, manganese and zinc bioaccumulation potential was screened for three common Poaceae species, Hordeum murinum ssp. murinum L., Leymus racemosus ssp. sabulosus (M. Bieb.) Tzvelev and Lollium perenne L., abundantly growing along the Romanian Black Sea Coastal area, Constanta County. The concentration of the selected heavy metals was analyzed though atomic absorption spectrometry in samples of aboveground plant organs and soils. To assess the potential for phytoaccumulation, the Biological Accumulation Coefficients (BAC) were calculated. Considering the minimal thresholds widely accepted in literature for Cu, Mn and Zn hyperaccumulators, none of the selected species can fit in this category. The highest average copper concentration was found in Hordeum murinum ssp. murinum L. (5.45 mg/kg). For manganese, the highest value was found in Lollium perenne L. (104.08 mg/kg), while for zinc, the maximum was reached in Leymus racemosus ssp. sabulosus (M. Bieb.) Tzvelev, tissue (62.95 mg/kg). BAC values showed that all species are manganese excluders, with a remarkable maximum value of 0.55 in Lollium perenne. L. All species had average BAC above 1 for Cu and Zn, with a maximum in Leymus racemosus ssp. sabulosus (M. Bieb.) Tzvelev (4.85 and 2.98, respectively). However, there was a significant variation among individuals, usually, a high metal content in plant tissue being associated with low metal concentration in soil. The exception was Lollium perenne L., with BAC constantly above 1 (average BAC of 2.27 for Cu and 1.69 for Zn). These results emphasize a significant potential for phytostabilization of copper- and zinc-rich soils and open the way for heavy metals phytoextraction capacity studies of the Poaceae species along Romanian littoral.

Change of catalase activity in soils of black sea coast of Caucasus during contamination with heavy metals and oil

2020 ◽  
Author(s):  
Anna Kuzina ◽  
Sergey Kolesnikov ◽  
Tigran Ter-Misakyants ◽  
Elena Nevedomaya ◽  
Lidiya Samohvalova ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Black Sea ◽  
Catalase Activity ◽  
Black Sea Coast ◽  
Sea Coast

Pollution influence by Heavy Metals and Oil on Phytotoxicity of Black Sea Coast Soils of the Caucasus

2016 ◽  
pp. 68-71
Author(s):  
Anna Andreevna Kuzina ◽  
◽  
Sergei Il’ich Kolesnikov ◽  
Kamil Shagidullovich Kazeev ◽  
Yuliya Viktorovna Akimenko ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Black Sea ◽  
The Caucasus ◽  
Black Sea Coast ◽  
Sea Coast

Sea sediments contaminated with heavy metals: metal speciation and removal

1995 ◽  
Vol 32 (9-10) ◽  
pp. 65-73 ◽  
Author(s):  
C. Savvides ◽  
A. Papadopoulos ◽  
K. J. Haralambous ◽  
M. Loizidou
Keyword(s):  
Heavy Metals ◽  
Industrial Waste ◽  
Metal Content ◽  
Metal Speciation ◽  
Acid Solutions ◽  
Significant Percentage ◽  
High Metal Content ◽  
Residual Phase ◽  
High Metal ◽  
Partitioning Procedure

The contamination of sediments with heavy metals may lead to serious environmental problems and in some cases action has to take place for their decontamination. In this work, studies were performed on sediments near the outfall of domestic and industrial waste. The metals examined were Cu, Cr, Ni, Pb, Zn and Fe. Indeed, high metal content was found in the sediments and the contamination factors were quite high, indicating the effect of the nearby discharge of effluents. The results of the application of a sequential extraction partitioning procedure indicated that an important part of the metal content is carried by the residual phase but also a significant percentage is found in the organic and reducible fractions, i.e. in potentially available fractions. Batch extraction experiments using acid solutions of various concentrations and different acid-sediment contact times were performed in order to remove heavy metals from the sediments. For most metals studied, a satisfactory percentage was extracted at low contact times.

Impact of Bulgarian rivers on heavy metal pollution of the Black Sea

1999 ◽  
Vol 39 (8) ◽  
pp. 9-12
Author(s):  
G. A. Mirinchev ◽  
Tz. V. Tzankov ◽  
I. S. Kostova ◽  
M. G. Mirincheva
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Black Sea ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
The Black Sea ◽  
Hydrological Characteristics ◽  
Black Sea Coast ◽  
Sea Coast

In the Bulgarian part of the Black Sea coast there are seventeen rivers and three lakes which contribute to the pollution and eutrophication of the Black Sea. The hydrophysical and hydrological characteristics of these rivers are described. The variation in the concentration of heavy metals during recent years (data up to 1996) has been determined. The total annual quantity of some pollutants and their percentage distribution are presented. Conclusions are made based on the variation of water quality of the rivers and their impact on the heavy metal pollution of the Black Sea.

Heavy Metal Levels in Sediment of the Turkish Black Sea Coast

2015 ◽  
pp. 399-419 ◽  
Author(s):  
Levent Bat ◽  
Ebru Yesim Özkan
Keyword(s):  
Heavy Metals ◽  
Black Sea ◽  
Industrial Development ◽  
Coastal Region ◽  
Economic Importance ◽  
Aquatic Systems ◽  
The Black Sea ◽  
Black Sea Coast ◽  
Metal Levels ◽  
Sea Coast

Sediments are an important repository for various pollutants such as pesticides and heavy metals and also play a significant role as sensitive indicators for monitoring contaminants in aquatic systems. Heavy metals which are regarded as serious pollutants of aquatic ecosystems are a major environmental problem in the Black Sea. Contamination by heavy metals has not been extensively studied in the Black Sea coast of Turkey, even though these are subjected to intense discharges of pollutants. It is important, therefore, that sediment by heavy metals be assessed in order to facilitate better management and protection of these valuable coastal ecosystems. This is especially the case, since Turkish Black Sea coast represents a prominent area for fishing, industrial development and urban extension and tourism activities. In view of the economic importance of the Black Sea coastal region of Turkey, this review aims to analyses the distribution and concentrations of heavy metals in bottom sediment in the coastal sediment along the Black Sea.

Stimulation of Biological Uptake of Heavy Metals

1992 ◽  
Vol 26 (1-2) ◽  
pp. 227-236 ◽  
Author(s):  
S. Ghosh ◽  
S. Bupp
Keyword(s):  
Heavy Metals ◽  
Metal Binding ◽  
Metal Uptake ◽  
Metal Removal ◽  
Ternary Mixtures ◽  
High Metal Content ◽  
Chemostat Cultures ◽  
Binary And Ternary Mixtures ◽  
High Metal

This research was conducted to investigate the relative capabilities of unacclimated, acclimated, and cysteine-cystine-stimulated aerobic cultures to remove heavy metals. Loss of organism viability was observed at metal concentrations above 30 mg/L, however, loss of cell viability did not affect metal uptake. Metal-complexing capacities from 0.041 to 2.13 mg/mg protein were observed. Metal removal from binary and ternary mixtures exceeded those of single metals. Surprisingly, culture acclimation resulted in reduced metal uptake. However, a cysteine-cystine-stimulated culture had substantially increased metal-removal capabilities possibly due to the synthesis of metallothionein-like proteins. Biopolymers of the unacclimated organisms had an affinity for metal binding of the order: Cu > Pb > Cd. This research points to the feasibility of in-vitro detoxification of high metal-content hazardous wastes by cell materials derived from cysteine-cystine-stimulated chemostat cultures. Coupling in-vitro metal complexation with metal leaching from biosolids could provide an opportunity for recycling hazardous heavy metals.

Comparative analysis of heavy metal and radionuclide contaminants in Black Sea green and red macroalgae

2005 ◽  
Vol 51 (11) ◽  
pp. 1-8 ◽  
Author(s):  
A.S. Strezov ◽  
Tz.P. Nonova
Keyword(s):  
Heavy Metal ◽  
Comparative Analysis ◽  
Black Sea ◽  
Coastal Region ◽  
Absorption Spectrometry ◽  
The Black Sea ◽  
Sampling Location ◽  
Metal Concentrations ◽  
Red Macroalgae ◽  
Black Sea Coast

A comparative analysis about the accumulation of heavy metal, natural and technogenic radionuclides from the Black Sea environment in different Bulgarian coastline regions is made. The possibilities to use Chlorophyta and Rhodophyta algae phylums as bioindicators in marine environment are investigated. Environmental contamination in the Black Sea alga species (green and red) was studied from 1992 to 2003. Sampling sites were selected to cover the whole coastal region. Low level gamma spectrometry was used to determine the natural and technogenic nuclide concentrations. The heavy metal concentrations were measured by Atomic Absorption Spectrometry (AAS). The obtained data show that radionuclide and metal concentrations depend on the macrophyte type. Tendencies in the concentration of pollutant variations during the studied period are examined and all data give information about different macrophytic species' ability to accumulate certain elements from one and the same sampling location. All obtained results show that use of macroalgae in marine environmental monitoring reduces the need for complex studies on chemical speciation of aquatic contaminants and makes algae valuable indicators for seawater quality assessment. All data show the lack of serious pollution along the Bulgarian Black Sea coast.

Microalgae

2018 ◽  
pp. 141-153
Author(s):  
Vinod Kumar ◽  
Manisha Nanda
Keyword(s):  
Heavy Metals ◽  
Metal Content ◽  
High Quality ◽  
Ecological Services ◽  
High Metal Content ◽  
Living Things ◽  
High Metal ◽  
Living Organisms ◽  
Micro Organisms ◽  
Micro Pollutants

The primary functions of ecosystems, wherever located, or whatever their constituents on earth, are to sustain life. They provide vital needs, commonly described as “ecological services,” for all the living things residing within that particular system, or for those on its fringes. Such services include shelter, food, maintaining soils and hydrology, and providing livelihoods for its dwellers. Water is considered an important resource for mankind and other living organisms. Therefore, maintaining the water to a high quality is crucial. Bioremediation of heavy metals and micro pollutants by microorganisms (algae, bacteria, fungi, and yeast) has been used for the last two decades. All micro-organisms and microalgae are gaining increasing attention because microalgae can easily grow and is cheap to process and able to accumulate high metal content.

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