Wyniki wyszukiwania - Biblioteka Nauki

1

Vermicomposting as an Alternative Method of Sludge Treatment

100%

Boruszko D.

|

tom Vol. 21, nr 2

22--28

EN

The article presents the results of the research from several years of exploitation of the vermiculture plots located in the municipal wastewater treatment plant in Zambrów. It is the only facility in Poland where the vermicompost from municipal sewage sludge has been produced continuously since 2004 (for 16 years). The results of tests of ready-made vermicomposts conducted regularly twice a year (32 tests) were subjected to a simple statistical analysis. The vermicompost analyses of heavy metals, biogenic compounds, organic matter and selected macroelements were compared with the requirements for mineral-organic fertilizers. In terms of the heavy metals content, the highest total content was observed in the first year of plots exploitation, i.e. in 2004, when it amounted to over 1200 mg-1 kg DM. The lowest sum content of heavy metals in vermicomposts, amounting to 398 mg-1 kg DM, was recorded in 2017. The median total content of heavy metals from all observations was 821 mg-1 kg DM. During the whole research period, the content of nutrients in vermicomposts was high, for nitrogen it ranged from 9.8 g-1 kg DM to 31.1 g-1 kg DM (median 14.3 g-1 kg DM), whereas for phosphorus it ranged from 2.1 g-1 kg DM to 14.5 g-1 kg DM (median 5.5 g-1 kg DM). The content of organic matter in the whole several-year study period was high and ranged from 21.3% DM to 59.0% DM (median 33.1% DM). The conducted research confirmed that the use of California earthworm in the process of municipal sewage sludge vermicomposting results in its good mineralization and humification, and the final product (vermicompost) may be a valuable mineral-organic fertilizer.

2

Fractionation of Cadmium, Lead and Copper in Municipal Solid Waste Incineration Bottom Ash

100%

Łukowski A. , Olejniczak J. I.

|

tom Vol. 21, nr 3

112--116

EN

The basic physicochemical properties such as: dry mass, pH, pseudo-total content of cadmium, lead and copper, were determined in the fresh bottom ash samples from a municipal waste incineration plant. In order to study fractional composition of the investigated heavy metals, the BCR method was used (F1 – acid soluble and exchangeable fraction, F2 – reducible fraction, F3 – oxidizable fraction, F4 – residual fraction). The average percentage of cadmium in particular fractions was as follows: F1 (37.5%) > F4 (27.2%) > F2 (25.3%) > F3 (10.0%), for lead: F4 (36.5%) > F2(27.2%) > F3(23.4%) > F1(12.9%), and in the case of copper F4(66.3%) > F3(22.1%) > F2(7.4%) > F1(4.2%). Among the studied metals, in mobile pool (F1-F3) the highest amount of cadmium was noted (72.8%); for lead it was 63.5%, and for copper 33.7% of the pseudo-total content.

3

Effect of Nitrogen Fertilizers on the Change in Selected Chemical Characteristics of Soil after Carrot Cultivation

100%

Sady W. , Smoleń S.

|

tom Vol. 18, nr 1

105-112

EN

In 2003-2005 in carrot cultivation the following combinations were applied (kg N o ha -1): 1 -Control (without N fertilization), 2 - calcium nitrate 70, 3 - calcium nitrate 70 + 70, 4 - ammonium sulphate 70 and 5 - ammonium sulphate 70 + 70; where 70 means 70 kg N o ha-1 was used preplant, whereas 70 + 70 that 70 + 70 kg N o ha-1 was applied preplant and as a top dressing, respectively. In the individual years of the research a diversified effect of nitrogen fertilization on the content of NH4-N, NO3-N, Cd, Cu, Pb and Zn and soil reaction (pH) after carrot cultivation, as well the size of changes in these chemical characteristics in 0-30 cm and 30-60 cm soil layers were noted when compared with the values measured prior to the start of carrot cultivation. Variable climatic conditions as well as rainfall amount and its distribution significantly influenced the content of mineral nitrogen in 0-30 and 30-60 cm layers of soil after carrot cultivation. In 2003, characterized by the lowest rainfall in the period of carrot cultivation and drought in the summer months. were noted the highest content of NH4-N in 30-60 cm layer of soil fertilized with presowing and topdressing treatment of ammonium sulfate, and NO3-N in 0-30 cm layer of soil fertilized with presowing and top dressing treatment of calcium nitrate.

PL

Badana wykonano w latach 2003-2005. W uprawie marchwi zastosowano (kg N o ha-1): 1 -kontrola (bez nawożenia azotem), 2 - saletra wapniowa 70, 3 - saletra wapniowa 70 + 70, 4 - siarczan amonu 70, 5 - siarczan amonu 70 + 70; gdzie 70 oznacza 70 kg N o ha-1 zastosowane przedsiewnie, podczas gdy 70 + 70 odpowiednio 70 + 70 kg N o ha-1 azot zastosowany przedsiewnie i pogłównie. W poszczególnych latach prowadzenia badań wykazano odmienny wpływ nawożenia azotem na zawartość: N-NH4, N-NO3, Cd. Cu, Pb i Zn. jak i na odczyn gleby (pH) po uprawie oraz na zakres zmian tych właściwości w warstwach 0-30 i 30-60 cm gleby w stosunku do wartości zmierzonych przed rozpoczęciem uprawy marchwi. Zróżnicowane warunki klimatyczne, ilość i rozkład opadów, miały znaczny wpływ na zawartość azotu mineralnego w 0-30 i 30-60 cm warstwach gleby po uprawie marchwi. W roku 2003 charakteryzującym się najmniejsza ilością opadów w okresie uprawy marchwi oraz suszą w miesiącach letnich stwierdzono największa zawartość N-NH4 w 30-60 cm warstwie gleby nawożonej przedsiewnie i pogłównie siarczanem amonu, a N-NO3 w 0-30 cm warstwie gleby nawożonej przedsiewnie i pogłównie saletrą wapniową.

4

Chemometric Analysis of Grapes

100%

Ranđelovic S. S. , Kostic D. A. , Arsic B. B. , Mitic S. S. , Rasic I. D. , Mitic M. N. , Dimitrijevic D. S. , Stojanovic G. S.

Open Chemistry

|

2015

|

tom 13

|

nr 1

EN

Concentrations of several heavy metals in soil, water and grape samples (variety Plovdina) collected at five locations at different distances from the road in Southeast Serbia were determined using the Flame Atomic Absorption Spectrophotometry. There was a decrease in analyzed samples with an increase in distance from the road. A complete absence of several examined, very harmful heavy metals (Mn, Ni, and Cd) in all analyzed samples was found. The analysis of grape samples proved the presence of iron, zinc and copper in concentration ranges 3.3-19.8, 0.31-0.63, and 3.4-13.6 μg g-1, respectively. The content of heavy metals in soil, water and grapes were below allowable limits. Correlation analysis showed a significant relationship between the concentrations of metals in soil and grape samples.

5

Effect of leaf and soil contaminations on heavy metals content in spring wheat crops

100%

Weber R. , Hryńczuk B.

|

2000

|

tom Vol. 45, nr 2

137-140

EN

Glasshouse experiments were carried out in Wagner pots containing 6 kg of soil. The amounts were compared of Zn, Pb and Cd taken up by the crop of spring wheat from contamination introduced into the soil or upon leaves. The heavy metals were labelled with the radioactive isotopes 65Zn, 210Pb and 115Cd. The experiment was performed as a series of independent analyses in four replications. The dynamics of the labelled heavy metals translocation from contaminations sprayed on the upper or bottom side of the flag leaf was also tested. The highest concentration of 65Zn was found in the straw and grain of wheat. Much higher amounts of the metals appeared to have been taken up by the plants from leaf contamination than from the soil. The highest dynamics of translocation from leaves to other vegetative and generative organs of plants was that of zinc.

6

Effects of different kinds of sewage sludge amendment on urban lawn grasses

100%

Wołejko E. , Butarewicz A. , Wydro U. , Łoboda T.

|

tom Vol. 16, nr 1

164--170

EN

The paper presents the results of research on the use of sewage sludge from the municipal sewage treatment plant in Białystok for fertilization of urban lawns. To fertilize the ground two types of deposits were used: stabilized sludge after the dewatering process in the press and granular sludge after drying in the sludge dryer. Two doses of sludge were used – 5 and 10 kg/m2. Effective microorganisms (EM) were added to the test plots. Both doses of the applied sewage sludge contributed significantly to the growth of grass biomass. Aboveground biomass of the plants was significantly correlated with the concentration of Cd, Cu, Pb and Zn in the surface layer of the soil. The addition of EM to soil containing the dewatered sludge from the press reduced significantly the content of heavy metals in the soil, as opposed to the sludge in a form of granules with addition of EM, which contributed to the increase of their concentration in the soil.

7

Measuring Heavy Metals Content in Wastewater using Laser Induced Breakdown Spectroscopy

100%

Ali S. , Jamil H. , Imran M.

|

tom Vol. 2

69-75

EN

In the present study, laser-induced breakdown spectroscopy (LIBS) has been applied for the determination of chromium and cadmium contents in wastewater of different canneries surrounding by leather factories. The plasma was generated with a Q-switched Nd:YAG laser having a fundamental wavelength of 1064 nm and delivers maximum pulse energy of 180 mJ. Experimental conditions were optimized to improve the sensitivity and to get a reasonable signal from the generated plasma. The results show that the concentration of chromium and cadmium are varying in different samples depending on the incoming flow of the wastewater from factories. The results from LIBS and standard analytical technique called flame atomic absorption spectroscopy (FAAS) were compared and found in good agreement within the experimental uncertainties.

8

Removal of heavy metal ions: copper, zinc and chromium from water on chitosan beads

100%

Jaros K. , Kamiński W. , Albińska J. , Nowak U.

|

tom Vol. 31, nr 3-4

153-162

EN

The paper deals with the application of chitosan in the form of beads to the removal of copper, zinc and chromium ions from water. The main element of the experimental equipment was a glass column, 5 cm in diameter and 30 cm high. The column was filled with chitosan beads. The research was car-ried out in one-, two- and three-component solutions, at the initial concentrations c0 ranging from 50 to 70 mg/dm3.In the description of metal sorption kinetics, the second-order equation was used. It well describes experimental data (its correlation coefficient ranged from 0.94 to 0.99).

9

Spectral Analysis Method for Distinguishing Heavy Metals Pollution in the Pioneer Vegetation of Landfills Located within the Prikarpatian Geobotanical District of Ukraine

100%

Korol K. А. , Popovych V. V.

|

2023

|

tom Vol. 24, iss. 1

29--37

EN

In Ukraine, the tourism and recreation industry is widespread. These are mostly resort complexes with health boarding houses, hotels and restaurants. However, in Ukraine, the issue of solid household waste processing and active landfills, located near recreation facilities, is practically not addressed. Undoubtedly, this situation has a negative effect on the processes of recovery, because, as is known, landfills are depositing dangerous substances and compounds, which, due to geochemical flows, get into all components of the environment, which seem to be clean. The aim of this investigation is to determine the heavy metals content in the vegetation of a landfill near a places for recreation. The object of present research is the analysis of heavy metals content in the roots of trees on the Bronytsya landfill, located within the tourist and recreational complex of the Lviv region of Ukraine. It was established that tree roots are contaminated with Pb components and partially with Cd and Co components. Among the toxic chemicals, we can highlight the presence of Pb with a significant difference on the eastern side of the landfill in samples of Acer negundo L. (4 times higher than the MAC) and Populus nigra L. (7.1 times higher than the MAC), on the southern side – Fagus sylvatica L (1.1 times higher than the MAC) and Malus sylvestris Mill. (7 times higher than the MAC), on the west side – Salix cinerea L. (2.5 times higher than the MAC) and Carpinus betulus L. (6 times higher than the MAC), on the northern side of the landfill – Malus sylvestris Mill (2.5 times higher than the MAC) and Prunus spinosa L. (3 times higher than the MAC) and in the central part – Populus nigra L. (1.5 times higher than the MAC) and Salix alba L. (2 times higher than the MAC) in accordance with other samples on the investigated object. Cd exceeds the allowable concentration from the south side in Fagus sylvatica L. (1 times higher than the MAC) and Malus sylvestris Mill. (2 times higher than the MAC), from the west side in the root of Carpinus betulus L. (1 times higher than the MAC), from the center of the Salix alba L. (8 times higher than the MAC), from the south side of Malus sylvestris Mill. (11 times higher than the MAC), and on the eastern side Acer negundo L. (4 times higher than the MAC) and Populus nigra L. (8 times higher than the MAC). The content of Co was higher in the roots of trees from the west side of Salix cinerea L. (1 times higher than the MAC), from the west side of Carpinus betulus L. (1.7 times higher than the MAC), from the south side – Malus sylvestris Mill. (2 times higher than the MAC), and on the eastern side – Populus nigra L. (2 times higher than the MAC). An excess of Cu content was recorded on the western side of the landfill in the root of Carpinus betulus L. (1 times higher than the MAC). The determination of the chemical content in the roots of trees is important because it is possible to define the pollution rate of the environment in the health resort regions.

10

Binding of Industrial Deposits of Heavy Metals and Arsenic in the Soil by 3-Aminopropyltrimethoxysilane

100%

Grzesiak P. , Łukaszyk J. , Schroeder G. , Kurczewska J.

|

nr 2

12-15

EN

The results of the research studies concerning binding of heavy metals and arsenic (HM+As), occurring in soils affected by emissions from Głogów Copper Smelter and Refinery, by silane nanomaterial have been described. The content of heavy metals and arsenic was determined by AAS and the effectiveness of heavy metals and arsenic binding by 3-Aminopropyltrimethoxysilane was examined. The total leaching level of impurities in those fractions was 73.26% Cu, 74.7% – Pb, 79.5% Zn, 65.81% – Cd and 55.55% As. The studies demonstrated that the total binding of heavy metals and arsenic with nanomaterial in all fractions was about as follows: 20.5% Cu, 9.5% Pb, 7.1% Zn, 25.3% Cd and 10.89% As. The results presented how the safety of food can be cultivated around industrial area, as the currently used soil stabilization technique of HM by soil pH does not guarantee their stable blocking in a sorptive complex.

11

Properties of Laboratory Wastewater Having Influence Heavy Metals Treatment Efficiency by Chemical Precipitation

100%

Saengchut P. , Ladtem N. , Wonglertarak W. , Kokaphan C. , Obpat S. , Klaiklung P.

|

tom Vol. 25, nr 8

72--83

EN

The influence of laboratory wastewater properties on heavy metals treatment efficiency by the chemical precipitation included aluminium sulphate (Al2(SO4)3) and poly aluminium chloride (PAC) using a stepwise multiple regression method. The laboratory wastewater properties showed high acidity approximately 0.75 and a highly turbid approximately 667.41 NTU that TSS (705.48 mg/L), COD (480.00 mg/L) and heavy metals such as Zn did not exceed the standards while Cu, Mn and Cr have levels exceeded the standards. Aluminium sulphate Al2(SO4)3) coagulant has treatment efficiency for reducing heavy metals at a pH of 9.00 to 73.62%, 99.94%, 98.43%, 68.76% and 99.25% for various heavy metals (Cu, Fe, Mn, Zn and Cr) respectively with original laboratory wastewater properties that parameters of laboratory wastewater include TSS, BOD, and pH having the highest influence on heavy metals treatment efficiency. The parameters of laboratory wastewater having the highest influence on heavy metals treatment efficiency when using poly aluminium chloride (PAC) were pH, COD, DO, and BOD when at a pH of 9.00 has treatment efficiency for reducing heavy metals to 73.67%, 99.94%, 98.45%, 69.76%, and 99.26% for various heavy metals (Cu, Fe, Mn, Zn, and Cr) respectively.

12

Environmental Long Term Impact on a Romanian Military Testing Range

100%

Petre R. , Rotariu T. , Zecheru T. , Petrea N. , Băjenaru S.

|

2016

|

tom Vol. 13, no. 1

3--19

EN

Military range management has become extremely important in recent years, in order to comply with the limitations imposed by national and international environmental regulations. In this regard, soil, vegetation and ground water samples from a testing facility belonging to the Romanian Ministry of National Defense were analyzed for contamination with metals and energetic materials. The tests confirmed the presence of contaminants as energetic materials and heavy metals (Pb, Cu, Zn), with a heterogeneous distribution on the range and concentrated in the impact and firing line areas.

13

Study of the Process of Electro Evolution of Copper Ions from Waste Regeneration Solutions

100%

Trokhymenko G. , Magas N. , Gomelya N. , Trus I. , Koliehova A.

|

tom Vol. 21, nr 2

29--38

EN

The article presents the results of the study on the process of copper electroevolution from the regeneration solutions in one- and two-chamber electrolyzers at different concentrations of sulfuric acid and the solutions of copper chlorides at different concentrations of hydrochloric acid – in a three-chamber electrolyzer. The conditions of electrochemical recovery of heavy metals from acidic and saline solutions were determined. It was shown that the most effective recovery of heavy metal cations from hydrochloric acid solutions occurs in three-chamber electrolyzers. On the basis of the results obtained, a technological scheme of a local plant for treatment of washing water of galvanic industries was proposed.

14

Leaching of heavy metals from monolithic waste

100%

Mizerna K. , Król A.

|

tom Vol. 44, nr 4

143--158

EN

Leaching of heavy metals (Zn, Pb, Cu, Ni and Cr) from hazardous waste originating from steel works (slag) has been investigated. Contaminant leaching behavior from monolithic waste materials in the function of time was examined. There was established the cumulative leaching of elements per surface area of waste material and the impact of the duration of the leachant contact with the waste on the leachability. The types of processes accompanying the release of heavy metals were determined as well. Surface wash-off and dissolution were dominant processes during the leaching of the analyzed elements. Chromium was the only element whose release from the sample was controlled by diffusion when subjected to leaching in a liquid of pH 7. Due to the low levels of heavy metal leaching in relation to their concentrations in the samples, it seems that longer duration of the tank test can contribute to the release of additional amounts of the heavy metals.

15

Environmental Risk Assessment of Heavy Metals in Selected Medicinal Herbs and Spices

100%

Al-Keriawy H. A. H. , Nehaba S. S. , Alwan S. W.

|

tom Vol. 24, nr 6

376--384

EN

Spices and medicinal herbs is an important route for human exposure to toxic metals. This study determined total concentrations of heavy metals and risk assessment of ten types of herbs used in cooking, spices and medicinal plants available in local markets of Babylon province/Iraq. Concentrations of Cu, Ni, Zn, Pb, Co, As, Cd, Cr and Hg were estimated by ICP/Mass to identify toxic metals in the used portion of selected spices and medicinal plants. The average concentrations of these elements were within the limits allowed by the WHO. Culinary herbs and spices contained significantly Cu˃Ni˃Zn˃Pb˃Co˃As˃Cd˃Cr˃Hg. However, the concentrations of copper, zinc and nickel, respectively, were higher in all herbal samples. The study recorded the highest concentrations in the aerial parts of plants from the total elemental content of Thymus vulgaris leaves (109.4 μg·g-1). and barks of Cinnamomum verum was recorded (43 μg·g-1). Non-carcinogenic risks and estimated daily consumption of these herbs were assessed on the basis of the target hazard quotient (THQ) and Hazard Index (HI). THQ values for individual minerals were more than one indicating health risks for nickel (15.5) Mentha verticillata leaves, (12.3) for Matricaria chamomilla, other metals Cu, Co, Pb and Zn were recorded THQ˃1 which considered unsafe for human consumption. The mean Hazard Index (HI) for the nine metal elements is ˃1 for all plants except Zingiber officinale, indicating that there are non-carcinogenic risks from these nine elements. this study provides a scientific basis to guide the safe consumption of certain culinary herbs and spices, it suggest potential health concerns for consumers of these products on a daily basis over a prolonged life span.

16

Influence of charcoal calcination in field conditions on heavy metal content in plants and in the immediate vicinity of the retorts

100%

Orłowska K. , Mierzwa-Hersztek M. , Kopeć M.

|

tom Vol. 15, nr 1

50--54

EN

One of the ways of charcoal producing is its calcination in charcoal kilns called retorts in field conditions. In the charcoal production wood of deciduous trees is being subjected to the process of dry distillation. The process affects the surrounding environment. During the process a lot of pollutants are emitted to natural environment. One of them is ash, which contains heavy metals. The paper aimed at determining the effect of charcoal calcination on heavy metal content in the soil and plant material in the immediate vicinity. Charcoal calcination causes the alkalinization of the soil to 10 metres. In the closest vicinity, the calcination process increases Mn, Cd, Ni and Cu concentrations in the soil material. The influence of charcoal production on the concentrations Fe, Zn, Pb, Cr in soil material cannot be determined unanimously. The effect of the process on heavy metal content in plant material cannot be determined unanimously.

17

Synthesis and Characterization of Zinc Oxide-Zeolite Photocatalyst Nanocomposite for Heavy Metals Degradation

100%

Agustina T. E. , Ramadhini T. K. , Melwita E. , Bahrin D. , Wijayanti M. S. , Gayatri R.

|

tom Vol. 25, nr 3

272--281

EN

Heavy metals are the major contributors to pollution due to their enduring presence and poisonous characteristics. Wastewater that contains heavy metals is classified as harmful and has the potential to contaminate the environment. Large-scale disposal of heavy metal discharged into the environment causes significant environmental harm. Commonly seen heavy metals in water deposits include non-biodegradable metals such as cadmium (Cd), copper (Cu), lead (Pb) and iron (Fe). To mitigate the adverse effects of environmental contamination, it is necessary to handle wastewater containing heavy metals properly and optimally. Photocatalysis is a technology that involves the breakdown of pollutants with the use of light. This study aims to synthesize and characterize the nanocomposite of ZnO-Zeolite photocatalyst on the degradation of Cd, Cu, Fe, and Pb heavy metals. The ZnO-Zeolite nanocomposites were characterized by using SEM-EDX, XRD, and BET methods. The degradation caused by exposure to ultraviolet (UV) light occurs within the time of between 60 to 120 minutes, with a pH range of 6–8. The removal of heavy metals proceeds within a time frame of one hour and two hours, resulting in an optimal percentage removal of metals that approaches 100%. The composite showed a surface area of 19.436 m2/g, a pore size of 17.227 Å, and a total pore volume of 0.112 cm3/g. The heavy metals Cu, Fe, and Pb exhibited the highest rates of degradation, reaching their maximum percentages after 60 minutes when exposed to ultraviolet radiation under ideal conditions at varying pH levels (pH 6–8). More precisely, the degradation percentage of Cu metal was 95.4% at pH 7, Fe metal achieved 96.1% at pH 6, while Pb metal obtained 95.5% at pH 8. The Cd metal removal percentage was found to be 98.9% under the conditions of a pH of 8 and an irradiation time of 120 minutes, indicating high effectiveness.

18

Physico-Chemical Parameters Determining the Variability of Actually and Potentially Available Fractions of Heavy Metals in Fluvial Sediments of the Middle Odra River

100%

Ibragimow A. , Walna B. , Siepak M.

|

tom Vol. 39, no. 2

3--16

EN

The occurrence of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) has been determined in the fluvial sediment samples collected along three transects in the Middle Odra River (western Poland) with a width of 360 m. The total concentrations of the metals were obtained after HNO3 microwave digestion and the available fractions of heavy metals were determined by single extraction procedures using two extractants: 0.01M CaCl2 and 0.05M EDTA. The measurement of physico-chemical parameters was also performed. The determination of total and available fractions of heavy metals, except potential available fractions of Cr, revealed high concentrations of studied elements detected in the sediment samples characterized by high content of coarse and very coarse-grained sand fraction and high content of organic matter. It was found that the concentrations of total and available fractions of metals could increase along with the content of organic matter, Eh values and concentrations of H+. Apart from the above, those concentrations become the lowest, the higher the content of medium grain size fractions is. Furthermore, the amounts of CaCl2 and EDTA extractable metals increase in the sediments samples characterized by the lowest total and available concentrations of heavy metals.

19

Environmental characteristics of the mining area affected by sulphide minerals and acidification (Banská Štiavnica, Slovakia)

100%

Remešicová E. , Andráš P. , Kučerová R.

|

2018

EN

The area of Sedem Žien tailing pond and the nearby Šobov hydroquartzite quarry affected by mining activity were investigated by geochemical and mineralogical methods to determine the contaminating chemical compounds and study their availability. Degradation of the hydrothermal base mineralisation (galena, sphalerite, pyrite, pyrrhotite and chalcopyrite) and of fine-grained pyrite oxidation, which forms impregnations in hydroquartzite produce Acid Mine Drainage (AMD). The area is acidified and the country components (soil, rock, water) are contaminated mainly by Pb, Zn and Fe. The tailing pond dam forming soils show acid pH (2.28–3.25), whereas the soil on the tailing pond surface is close neutral pH (7.26). The leaching availability of the metals from the soil is up to 75%. The AMD from the hydroquartzite quarry is in comparison with those percolating the tailing pond sediments very acid (pH 2.71) and contains high concentration of metals (Fe 311 mg.L-1, Zn 1690 µg.L-1, Cu 890 µg.L-1, Pb 126 µg.L-1).

20

Heavy metal and mould contamination of herbal medicinal products – an overview

100%

Ałtyn I. , Twarużek M.

|

2018

EN

Rośliny zielarskie są powszechnie wykorzystywane jako surowce w przemyśle farmaceutycznym. Od czasów starożytnych ziół używa się w leczeniu i zapobieganiu chorób. Jednakże w dzisiejszych czasach mogą one nie spełniać wymagań dotyczących jakości, bezpieczeństwa i skuteczności. Większość produktów ziołowych nie jest testowana, a ich efekty działania są słabo monitorowane. Konsekwencją tego jest niewystarczająca wiedza na temat przebiegu ich działania, skutków ubocznych, przeciwwskazań oraz interakcji z występującymi na rynku produktami farmaceutycznymi oraz żywnością. Przyczyną negatywnego wpływu surowców ziołowych na organizm może być ich zanieczyszczenie przez różne grzyby pleśniowe, powstające podczas zbioru, przetwarzania, przechowywania, a także dystrybucji. Zanieczyszczenie surowców zielarskich może być również spowodowane przez różnorodne metale ciężkie, które występują w wielu aspektach współczesnego życia. Celem niniejszej pracy jest przegląd informacji na temat stanu mykologicznego i chemicznego roślin leczniczych, a także wskazanie kilku ważnych wyzwań związanych z efektywnym monitorowaniem ich bezpieczeństwa.