69 research outputs found
Phytoextraction of toxic elements by Amaranthus Tricolor grown on technogenically polluted soils in open ground conditions
Using the INAA method, the ability of Amaranthus tricolor L. variety āValentinaā growing on soils with different degree of pollution to extract heavy metals was evaluated in the field experiments. It was found that amaranth of the studied variety characterized by the content of betacianin pigment, amaranthine, in the shoots and generative organ, is able to accumulate elements such as Mn, Fe and Ni from soils. The content of most of the studied elements decreases in the following order: leaves inflorescences stems. Under conditions of soil pollution with emissions from metallurgical plant, the phytoextraction of such elements as Mn, Fe, Co, Sb increases. The content of Fe and Mn in the leaves of A. tricolor var. āValentinaā exceeds the average data for vegetation from 7 to 17 times; the Co content exceeds the average data for vegetable from 4 to 7 times; the Sb content in the leaves exceeds the average data for vegetable from 10 to 23 times. Due to the fact that amaranth forms a sufficient biomass for the growing season, it can be recommended for phytoextraction of heavy metals from soils in case of polymetallic pollution
The effect of sampling scheme in the survey of atmospheric deposition of heavy metals in Albania by using moss biomonitoring
The atmospheric deposition of heavy metals in Albania was investigated by using a carpet-forming moss species (Hypnum cupressiforme) as bioindicator. Sampling was done in the dry seasons of autumn 2010 and summer 2011. Two different sampling schemes are discussed in this paper: a random sampling scheme with 62 sampling sites distributed over the whole territory of Albania and systematic sampling scheme with 44 sampling sites distributed over the same territory. Unwashed, dried samples were totally digested by using microwave digestion, and the concentrations of metal
elements were determined by inductively coupled plasma
atomic emission spectroscopy (ICP-AES) and AAS (Cd and
As). Twelve elements, such as conservative and trace elements (Al and Fe and As, Cd, Cr, Cu, Ni, Mn, Pb, V, Zn, and Li), were measured in moss samples. Li as typical lithogenic element is also included. The results reflect local emission points. The median concentrations and statistical parameters of elements were discussed by comparing two sampling schemes. The results of both sampling schemes are compared with the results of other European countries. Different levels of the contamination valuated by the respective contamination factor (CF) of each element are obtained for both sampling schemes, while the local emitters identified like ironchromium metallurgy and cement industry, oil refinery, mining industry, and transport have been the same for both sampling schemes. In addition, the natural sources, from the accumulation of these metals in mosses caused by metalenriched soil, associated withwind blowing soils were pointed as another possibility of local emitting factors
Elemental composition of moss and lichen species in eastern Serbia
Instrumental neutron activation analysis is used to determine a content of 47 elements (Na, Mg, Al, Cl, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, As, Se, Br, Rb, Sr, Zr, Mo, Ag, Cd, Sb, I, Ba, Cs, La, Ce, Nd, Sm, Eu, Gd, Tb, Dy, Tm, Yb, Lu, Hf, Ta, W, Au, Hg, Th, and U) in mosses (Homolothecium sp., Hypnum cupressiforme Hedw., and Brachythecium mildeanum (Schimp.) Schimp.) and lichen (Cladonia fimbriata (L.) Fr.) collected in three locations in Eastern Serbia over years 2006-2010. Concentrations of six elements (Zr, Nd, Gd, Tm, Yb, and Lu) in mosses in Serbia are measured for the first time. For other elements, the obtained concentrations fall within the ranges reported for mosses and lichens in Europe, but no declining trend in concentrations of V, Cd, Cr, Zn, Ni, Fe, and Cu, that has been described in the literature, can be inferred from our results. Factor analysis shows that terrigenous and industrial components are the highest contributing factors to the elemental composition and that the most polluted measurement site is in the vicinity of a copper mining and smelting complex
Tough Sprouting ā Impact of Cadmium on Physiological State and Germination Rate of Soybean Seeds
Seed germination is the earliest process in plant development and is crucial for further plant growth and fitness. The process is regulated by various internal and external factors, including soil pollutants such as nonessential metals. In the present study, we examined in detail the impact of short-term imbibition in Cd solutions at several concentrations (5, 10, and 25 mg/L) on germination rate and physiological state of soybean seeds. The results showed that although Cd was readily absorbed by the seeds, the metal had no effect on seeds cell viability, oxidative stress intensity, or germination percentage. In contrast, imbibition in Cd solution led to slight reduction in antioxidant capacity of seeds. Seedlings grown from seeds pretreated with metal showed no differences in growth in relation to the control. Taken together, the results indicate that soybean seeds are relatively tolerant even to high Cd concentration (up to 25 mg/L)
Soybean Seedlings Enriched with Iron and Magnesium - Impact on Germination, Growth and Antioxidant Properties
Abstract
Iron (Fe) and magnesium (Mg) deficiency in human diets is a widespread problem observed in various regions of the world. Insufficient Fe uptake results in the development of iron dependent anaemia and depressed physical and intellectual performance. In turn Mg deficiency is associated with alterations in neuromuscular and cardiovascular systems. An emerging alternative to traditional supplementation of these elements in the form of pills, liquids or effervescent tablets, is introduction of fortified food products. In present study we show that preincubation of soybean seeds in Fe and Mg solutions leads to elevated content of these elements in the seedlings. Importantly the pretreatment did not affect germination rate, seedlings growth or, with an exception of Fe supplementation at highest concentration, antioxidant capacity. The obtained results indicate that preincubation of seeds in Fe and Mg solutions may be a promising method of obtaining enriched soybean sprouts
Air pollution and vegetation: ICP Vegetation annual report 2015/2016
The International Cooperative Programme on Effects of Air Pollution on Natural Vegetation and Crops (ICP Vegetation) was established in 1987. It is led by the UK and has its Programme Coordination Centre at the Centre for Ecology & Hydrology (CEH) in Bangor. It is one of seven ICPs and Task Forces that report to the Working Group on Effects (WGE) of the Convention on Long-range Transboundary Air Pollution (LRTAP Convention) on the effects of atmospheric pollutants on different components of the environment (e.g. forests, fresh waters, materials) and health in Europe and North America. Today, the ICP Vegetation comprises an enthusiastic group of scientists from 50 countries, including scientists from outside the UNECE region. An overview of contributions to the WGE workplan and other research activities in the year 2015/16 is provided in this report
Supplementary material for the article: MiliÄeviÄ, T.; AniÄiÄ UroÅ”eviÄ, M.; VukoviÄ, G.; Å krivanj, S.; ReliÄ, D.; Frontasyeva, M. V.; PopoviÄ, A. Assessment of Species-Specific and Temporal Variations of Major, Trace and Rare Earth Elements in Vineyard Ambient Using Moss Bags. Ecotoxicology and Environmental Safety 2017, 144, 208ā215. https://doi.org/10.1016/j.ecoenv.2017.06.028
Supplementary material for: [. https://doi.org/10.1016/j.ecoenv.2017.06.028 ]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2513
Supplementary material for the article: MiliÄeviÄ, T.; AniÄiÄ UroÅ”eviÄ, M.; VukoviÄ, G.; Å krivanj, S.; ReliÄ, D.; Frontasyeva, M. V.; PopoviÄ, A. Assessment of Species-Specific and Temporal Variations of Major, Trace and Rare Earth Elements in Vineyard Ambient Using Moss Bags. Ecotoxicology and Environmental Safety 2017, 144, 208ā215. https://doi.org/10.1016/j.ecoenv.2017.06.028
Supplementary material for: [. https://doi.org/10.1016/j.ecoenv.2017.06.028 ]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2513
Atmospheric heavy metal deposition in North Macedonia from 2002 to 2010 studied by Moss biomonitoring technique
CITATION: Barandovski, L. et al. 2020. Atmospheric heavy metal deposition in North Macedonia from 2002 to 2010 studied by Moss biomonitoring technique. Atmosphere, 11(9):929, doi:10.3390/atmos11090929.The original publication is available at https://www.mdpi.comMoss biomonitoring technique was used for a heavy-metal pollution study in Macedonia in the framework of the International Cooperative Program on Effects of Air Pollution on Natural Vegetation and Crops (UNECE IPC Vegetation). Moss samples (n = 72) were collected during the summers of 2002, 2005, and 2010. The contents of 41 elements were determined by neutron activation analysis, atomic absorption spectrometry, and inductively coupled plasma atomic emission spectrometry. Using factor and cluster analyses, three geogenic factors were determined (Factor 1, including Al, As, Co, Cs, Fe, Hf, Na, Rb, Sc, Ta, Th, Ti, U, V, Zr, and rare-earth elementsāRE; Factor 4 with Ba, K, and Sr; and Factor 5 with Br and I), one anthropogenic factor (Factor 2, including Cd, Pb, Sb, and Zn), and one geogenic-anthropogenic factor (Factor 3, including Cr and Ni). The highest anthropogenic impact of heavy metal to the air pollution in the country was from the ferronickel smelter near Kavadraci (Ni and Cr), the lead and zinc mines in the vicinity of Makedonska Kamenica, ProbiÅ”tip, and Kriva Palanka in the eastern part of the country (Cd, Pb, and Zn), and the former lead and zinc smelter plant in Veles. Beside the anthropogenic influences, the lithology and the composition of the soil also play an important role in the distribution of the elements.https://www.mdpi.com/2073-4433/11/9/929Publisher's versio
Spatial distribution and temporal trend of airborne trace metal deposition in Albania studied by moss biomonitoring
This study describes the assessment of air quality in Albania using moss biomonitoring. The moss species,
Hypnum cupressiforme (Hedw) sps., was used in this study. Mosses were collected during August and September
2015 at 55 sampling sites more or less homogeneously distributed over the entire territory of the country. The
spatial distribution and temporal trends of trace metal atmospheric deposition were studied through the determinationof twenty inorganic elements, Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mn, Na, Ni, Pb, Sr, V,
and Zn. ICP-AES, AAS (As and Cd) and CV AAS (Hg) analysis were used to determine the concentration of the
elements. The obtained data show significant differences in the spatial distribution of the elements derived from
different emission sources. High emission loads of anthropogenic elements (Cr, Ni, Cu, As and Zn) were detected
in the East, and of sea salt elements, particularly Na and K, in the Western coastal line. The distribution trend of
the trace metals was studied by comparing the current data with the data of a similar study performed in 2010.
Due to the differences in airborne metal concentrations, their scavenging ratios from the atmosphere to the
terrestrial ecosystems, and their different uptake-leaching rates during wet and dry deposition respectively of
2015 and 2010 moss grown period, different concentration levels were found in 2010 and 2015 moss metal
concentrations. The 2015 moss concentration levels of anthropogenic elements Cr, Ni, Cu, As, Zn and Na had
increased, while K, Mg and Hg moss concentration data had declined. Other elements show non significant
differences in mosses of both monitoring periods.
The contamination levels that were evaluated by calculating the contamination factor (CF) for each element
provided similar results for the 2015 and 2010 moss survey. Factor analysis (FA) was applied to identify the
possible sources of elements in the 2015 moss samples. Five dominant factors were identified representing longrange
and local atmospheric transport of wind-blown soil dust particles (F1); local emission from chromium
industry and wind-blown mineral dust particles (F2); anthropogenic sources of traffic emission and wind-blown
fine mineral dust particles derived from geogenic origin natural transport from the marine environment (F4);
and long-range atmospheric deposition (F5). This study emphasis that moss biomonitoring combined with data
analysis and inventory of emission sources are important tools to assess air quality in Albania
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