scholarly journals RESEARCHES CONCERNING THE CAPACITY OF SOME MACROMYCETES SPECIES FOR ACCUMULATING HEAVY AND RARE METALS

1970 ◽  
Vol 65 (2) ◽  
Author(s):  
Gabriela Busuioc ◽  
Claudia Stihi ◽  
M. Dumitru
Keyword(s):  
Heavy Metals ◽  
Large Study ◽  
Common Species ◽  
Elemental Content ◽  
Rare Metals ◽  
Advanced Method ◽  
Metal Sources ◽  
Chemical Content ◽  
Armillariella Mellea ◽  
Macrolepiota Procera

It is necessary today to increase in Romania also the efforts to research in direction of identifying those biosystems which are hyperaccumulators for heavy and rare metals in order to be used as instruments in environmental clean biotechnologies as well as bioindicators or metal sources. In USA and Australia the researches in this way are extended over all common species of mushrooms (macromycetes). That is the reason we determinated the chemical content in metals of some macromycetes (mushrooms) species which are autochthonous in forestry ecosystems of Dambovita county. We begun a large study in this aria, but in this paper we present a study about two species very common in our forestry ecosystems - Armillariella mellea and Macrolepiota procera. In the same time we made the analyses of soil elemental content under macromycetes studied. The determinations were made by spectrometry advanced method in our own laboratories by ElvaX spectrometer. The resultes show a large elemental content in soil, but the content over 1ppm in bioelements, heavy and rare metals as number in two macromycetes species is a limited one. Everyone of two macromycetes species contains heavy metals (Fe, Cu, Zn) and rare metals (Re, Os).

scholarly journals Elemental profile of edible mushrooms from a forest near a major Romanian city

2015 ◽  
Vol 7 (1) ◽  
pp. 98-107 ◽  
Author(s):  
Andreea R. Zsigmond ◽  
Krisztina Varga ◽  
Sándor Harangi ◽  
Edina Baranyai ◽  
István Urák
Keyword(s):  
Age Groups ◽  
Edible Mushroom ◽  
Elemental Content ◽  
Cadmium Content ◽  
Mushroom Species ◽  
Risk Levels ◽  
Boletus Edulis ◽  
Elemental Profile ◽  
Armillariella Mellea ◽  
Macrolepiota Procera

Abstract We determined the elemental profile of 16 edible mushroom species from the Făget Forest, near Cluj-Napoca, and of 12 species from the Apuseni Mountains. One-way ANOVA showed no difference in the elemental content of mushrooms when the two regions were compared. Some species accumulated high amounts of trace elements, i.e. Boletus edulis (Ag, S, Zn), Macrolepiota procera (Cu), Lactarius volemus (Co), Russula emetica (Mn), Armillariella mellea, and Chantarellus cibarius (Cr). The cadmium content was the highest in the case of Leccinum scabrum and Boletus edulis. These two species presented elevated risk levels for all age-groups when they are consumed regularly.

PHYSICO-CHEMICAL AND SOME HEAVY METALS CONCENTRATION ANALYSES ON THREE COMMON SPECIES OF FISH IN TUNGAN KAWO RESERVOIR KONTAGORA, NIGER STATE, NIGERIA

2021 ◽  
Vol 5 (1) ◽  
pp. 223-232
Author(s):  
Mohammed Jr. Kinta ◽  
A. V. Ayanwale ◽  
U. N. Keke ◽  
Y. I. Auta ◽  
B. S. Adama ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Oxygen Demand ◽  
Aquatic Organisms ◽  
Common Species ◽  
Human Consumption ◽  
Long Term Effects ◽  
Aquatic Life ◽  
Physico Chemical ◽  
Fish Samples

Developing countries like Nigeria are faced with increased in generation of domestic, industrial and agricultural wastes, with a large percentage moving. This study evaluates the physico-chemical and some heavy metals concentration in three common species of fish from Tungan Kawo reservoir Kontagora, Nigeria; using standard methods between (July 2018 – February 2019); at four different sampling stations of human activities on the water. Five heavy metals were evaluated (Lead, Copper, Manganese, Iron and Chromium) in the fish samples. Phosphate (0.4 – 2.5) mg/L, Nitrate (3.2 – 7.5) mg/L, Temperature (27 – 32.4) 0C, Dissolved Oxygen (2.4 – 5.2 mg/L), Conductivity (81 – 125 µS/cm), Biochemical Oxygen Demand (1.9 – 4.4 mg/L), Alkalinity (mg/L) and Total Dissolved Solids (117 – 198) ppm were within the standard for drinking water and survival of fish.  However, the pH (6.3 – 9.8) was above the standard for NIS and WHO drinking water but can support aquatic life. Iron (0.64 ± 0.072 mg/kg) was the most highly concentrated in Synodontis clarias while lead (0.01 ± 0.013 mg/kg) was the lowest in Oreochromis niloticus and Coptidon zillii (formerly Tilapia zillii. This current finding indicates that the water is safe for both aquatic life and domestic purpose but not suitable for direct human consumption without being properly treated. However, there is the need for regular monitoring of the heavy metals load in this water body and the aquatic organisms because of the long term effects

scholarly journals Leaves of trees and shrubs as bioindicators of air pollution by particulate matter in Saint Petersburg

2020 ◽  
Vol 13 (1) ◽  
pp. 224-232 ◽  
Author(s):  
Nataliia V. Terekhina ◽  
Margarita D. Ufimtseva
Keyword(s):  
Particulate Matter ◽  
Chemical Elements ◽  
Common Species ◽  
Tilia Cordata ◽  
Rosa Rugosa ◽  
Central District ◽  
Chemical Content ◽  
Ulmus Laevis ◽  
The City ◽  
Trees And Shrubs

Accumulation of chemical elements by leaves of trees and shrubs in urban (Central District of St. Petersburg) and background habitats were studied. To determine proportion of pollutants accumulating on the surface of leaves, chemical content of washed and unwashed leaves were analyzed. The results of the study showed that big part (19-62%) of pollutants is deposited on the surface of leaves of urban lindens, and only 10% on the surface of leaves from background places. Average difference between quantity of particulate matter for them is 4 times. Tilia cordata and Ulmus laevis has the highest value of ash content between washing and washing leaves. The level of contamination (Kk) showed high values for Fe (8.83), Co (7.47), Cr (5.62), Pb (4.31), Zn (3.04) for unwashed leaves of urban lindens; for the washed leaves this index slightly increased only for Fe (3.12) and Pb (2.13). Accumulative ability depends on the structure of leaf blade of each species, and the ecological situation of the habitat. Ulmus laevis, Tilia cordata, Populus sp., and Rosa rugosa accumulate more pollutants, and can be recommended for protective green plantings. Tilia cordata, as the most common species in the city green spaces, can be used as an indicator of the level of atmospheric pollution.

scholarly journals UJI KANDUNGAN KIMIA DAN CEMARAN LOGAM KERANG KIMA (Tridacna sp.) KERING YANG DIPERDAGANGKAN DI KABUPATEN KONAWE UTARA SULAWESI TENGGARA

2020 ◽  
Vol 3 (2) ◽  
pp. 194
Author(s):  
Samsul Alam ◽  
Kobajashi Togo Isamu ◽  
Suwarjoyowirayatno Suwarjoyowirayatno
Keyword(s):  
Heavy Metals ◽  
Chemical Composition ◽  
Water Content ◽  
Metal Contamination ◽  
Descriptive Analysis ◽  
Fat Content ◽  
Ash Content ◽  
A Value ◽  
Chemical Content ◽  
Protein Treatment

The Test of Chemical Content and Metal Contamination of Dry Clam (Tridacna sp.) Traded in North Konawe Regency Southeast SulawesiABSTRACT         The aim of this study was to determine the characteristics of chemical composition (water, ash, protein, fat, and carbohydrate) and Metal Contamination of Dry Clam. The analysis of the data used in this study is to use descriptive analysis. The results of the analysis of the chemical content of the highest treatment of water content are found in P2 with a value of 25.84%. The highest ash content was found in the P2 treatment with a value of 13.84%. The highest level of protein treatment was at P3 with a value of 14.28%. The highest treatment fat content was in P3 with a value of 2.43% and the highest treatment carbohydrate content was in P2 with a value of 1.88% and. The results of the analysis of heavy metals were the highest Cd levels were at P3 with a value of 0.074 mg / Kg and the lowest was at P1 0.057 mg / Kg and the highest Pb metal at P3 0.026 mg / Kg the lowest was at P1 0.016 mg / Kg.Keywords: Clam (Tridacna sp.), Chemical content, Heavy metals ABSTRAKTujuan penelitian ini adalah untuk mengetahui karakteristik komposisi kimiawi (air, abu, protein, lemak, dan karbohidrat) dan cemaran Logam berat pada Kerang kima Kering. Analisis data yang digunakan dalam penelitian ini adalah menggunakan analisis deskriptif. Hasil analisis kadar kimia perlakuan kadar air tertinggi terdapat pada P2 dengan nilai 25,84%. Kadar abu tertinggi terdapat pada perlakuan P2 dengan nilai 13,84%. Perlakuan protein tertinggi terdapat pada P3 dengan nilai 14,28%. Kadar lemak perlakuan tertinggi terdapat pada P3 dengan nilai 2,43% dan kadar karbohidrat perlakuan tertinggi terdapat pada P2 dengan nilai 1,88% dan. Hasil analisis logam berat kadar Cd tertinggi pada P3 dengan nilai 0,074 mg / Kg dan terendah pada P1 0,057 mg / Kg dan logam Pb tertinggi pada P3 0,026 mg / Kg, terendah pada P1. 0,016 mg / Kg.Kata kunci Kerang kima (Tridacna sp.) kering, Kandungan Kimia, Logam berat

scholarly journals Environmental Impact of Straw Based Fuel Combustion

2013 ◽  
Vol 39 (4) ◽  
pp. 71-80 ◽  
Author(s):  
Monika Czop ◽  
Małgorzata Kajda-Szcześniak
Keyword(s):  
Heavy Metals ◽  
Environmental Impact ◽  
Greenhouse Gases ◽  
Physical Properties ◽  
Fuel Combustion ◽  
Renewable Fuel ◽  
Chemical Content ◽  
Combustion Tests

Abstract Biomass is commonly considered as a renewable fuel, which taking into account emission of CO2 does not contribute to the emission of the greenhouse gases. In the research, combustion tests of two types of fuel formed on the basis of straw with addition of polyethylene were performed in the laboratory. The article presents results of measurements of gas pollution coming from the combustion of the formed fuel. Obtained results were compared with similar literature data for the combustion of coal. The research covers also testing of chemical content, content of heavy metals and selected physical properties of ashes generated during the process of burning fuel based on straw.

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