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Tytuł:
Bioakumulacja metali ciężkich w roślinach wodnych na przykładzie moczarki kanadyjskiej (Elodea canadensis Michx.)
Bioaccumulation of heavy metals in aquatic plants theexample of Elodea canadensis Michx.
Autorzy:
Rajfur, M.
Kłos, A.
Wacławek, M.
Powiązania:
https://bibliotekanauki.pl/articles/126269.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
metale ciężkie
Elodea canadensis Michx.
biomonitoring
współczynnik biokoncentracji BCF
heavy metals
bioconcentration factor (BCF)
Opis:
Do oceny zanieczyszczenia ekosystemów wodnych metalami ciężkimi coraz częściej wykorzystuje się elementy bioty. Ze względu na możliwość akumulacji analitów w swoich strukturach stają się one dogodnymi próbnikami stanu środowiska, w którym bytują. Celem prezentowanych badań była ocena możliwości akumulacji metali ciężkich: Mn, Ni, Cu, Cd i Pb przez roślinę wodną Elodea canadensis Michx. w warunkach naturalnych. Wyniki zinterpretowano poprzez wyznaczenie współczynnika BCF (Bioconcentration factor). Na podstawie przeprowadzonych badań stwierdzono, że moczarka kanadyjska z powodzeniem może być wykorzystywana w biomonitoringu środowisk wodnych.
To assess contamination of aquatic ecosystems with heavy metals, the components of biota are frequently used. Due to the analytes accumulation in their structures, they become excellent samplers of the environment pollution. The aim of this study was to evaluate accumulation of heavy metals: Mn, Ni, Cu, Cd and Pb in the water plant Elodea canadensis Michx. under natural conditions. The results were interpreted using the bioconcentration factor BCF. The survey showed that Elodea canadensis can be successfully used in biomonitoring of aquatic environments.
Źródło:
Proceedings of ECOpole; 2010, 4, 1; 193-198
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bioakumulacja metali ciężkich w wybranych elementach bioty łowiska leśnego w Pokrzywnej (woj. opolskie, PL)
Bioaccumulation of heavy metals in selected elements of biota Forest Fisher in Pokrzywna (Opole province, PL)
Autorzy:
Rajfur, M.
Kłos, A.
Wacławek, M.
Powiązania:
https://bibliotekanauki.pl/articles/106682.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
Spirogyra sp.
Lemna minor
metale ciężkie
biomonitoring
współczynnik biokoncentracji BCF
Elodea canadensis Michx.
Elodea canadensis Michx
heavy metals
bioconcentration factor values (BCF)
Opis:
Przedstawiono wyniki badań dotyczących akumulacji metali ciężkich: Mn, Fe, Ni, Cu, Zn, Cd i Pb przez elementy bioty: glony Spirogyra sp., moczarkę kanadyjską (Elodea canadensis Michx.) i rzęsę drobną (Lemna minor L.), zasiedlające wody Łowiska Leśnego w Pokrzywnej, w województwie opolskim (PL). Wyniki porównano ze stężeniami badanych analitów w wodach jeziora. Stwierdzono, że pod względem zdolności do bioakumulacji metali ciężkich badane rośliny wodne można uszeregować w kolejności: Spirogyra sp. ~ Elodea canadensis Michx. > Lemna minor L. Wyznaczone współczynniki bioakumulacji (BCF), będące porównaniem stężeń analitów w roślinie i w wodzie, w której wegetują, wskazują na bardzo dobre właściwości akumulacyjne badanych roślin.
The results of uwestigations concerning accumulation of heavy metals: Mn, Fe, Ni, Cu, Zn, Cd and Pb in biota components: algae Spirogyra sp., Elodea canadensis Michy., and Lemna minor L. were shown. The samples of plants investigated were taken from waters of Forest Fishery lake in Pokrzywna, in Opole province (PL). The results were compared with concentrations of analytes determined in waters of the lake. It was found that ability of heavy metals bioaccumulation in aquatic plants can be arranged in the order: Spirogyra sp. ~ Elodea canadensis Michx. > Lemna minor L. Yalues of the calculated bioaccumulation factors (BCF), which shows ratio of analytes concentrations in plant and in water, show very good accumulation abłlities of the plants' studied.
Źródło:
Chemistry-Didactics-Ecology-Metrology; 2010, 15, 2; 167-171
2084-4506
Pojawia się w:
Chemistry-Didactics-Ecology-Metrology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomonitoring Jeziora Otmuchowskiego (południowo-zachodnia Polska) z wykorzystaniem sinic
Biomonitoring of the Otmuchowskie lake (south-western Poland) using Cyanobacteria
Autorzy:
Rajfur, M.
Rambau, W.
Jerz, D.
Kłos, A.
Powiązania:
https://bibliotekanauki.pl/articles/127224.pdf
Data publikacji:
2012
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
cyanobakterie
metale ciężkie
biomonitoring
współczynnik biokoncentracji BCF
cyanobacteria
heavy metals
bioconcentration factor (BCF)
Opis:
Celem przeprowadzonych badań była ocena możliwości wykorzystania sinic w biomonitoringu wód. Do badań wykorzystano cyanobacterie zebrane w strefie litoralnej Jeziora Otmuchowskiego (południowo-zachodnia Polska). W biocie metodą absorpcyjnej spektrometrii atomowej (AAS) oznaczono stężenia: Mn, Fe, Cu, Zn, Cd i Pb. Na podstawie przeprowadzonych badań dokonano wstępnej oceny zanieczyszczenia wód jeziora. Wartości stężeń metali ciężkich w sinicach porównano ze stężeniami tych metali w próbkach wody. Wyznaczone współczynniki biokoncentracji (BCF) wskazują na dobre właściwości akumulacyjne badanych cyanobacterii.
The objective of our studies was to evaluate the applicability of selected cyanobacteria in water biomonitoring. The cyanobacteria collected in the littoral zone of the Otmuchowskie Lake (south-western Poland) were used in the studies. The concentrations of Mn, Fe, Cu, Zn, Cd and Pb were determined in the biota by means of the Atomic Absorption Spectrometry (AAS). Pollution of the lake water was preliminary assessed. Concentrations of the heavy metals in cyanobacteria were compared with these in water samples. The value of bioconcentration factor (BCF) shows good accumulation of metals in cyanobacteria.
Źródło:
Proceedings of ECOpole; 2012, 6, 2; 593-600
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zawartość wybranych metali ciężkich w glebie i faunie glebowej
The content of selected heavy metals in soil and soil fauna
Autorzy:
Chrzan, A.
Powiązania:
https://bibliotekanauki.pl/articles/127369.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
metale ciężkie
fauna glebowa
saprofagi
drapieżce
fitosaprofagi
wskaźnik bioakumulacji
soil fauna
saprophags
predators
phitosaprophags
bioconcentration factor values (BCF)
heavy metals
Opis:
Badano zawartość wybranych metali ciężkich - kadmu Cd, ołowiu Pb, cynku Zn, miedzi Cu i niklu Ni w glebach łąkowych i leśnych oraz w wyekstrahowanych z próbek glebowych zwierząt. Stanowiska usytuowane były w różnej odległości od drogi i od źródeł emisji przemysłowych. Faunę glebową rozdzielono na grupy troficzne - saprofagi, drapieżne i fitosaprofagi, w których oznaczano metale ciężkie. Gleby na badanych stanowiskach wykazywały odczyn od słabo kwaśnego do słabo zasadowego i wilgotność w granicach 20-32%. Zawartość metali w glebie wynosiła odpowiednio: 0,63 0,94 ppm Cd; 8,8 12,53 ppm Pb; 77,75 148,78 ppm Zn; 12,17 ± 23,91 ppm Ni i 1,58 8,95 mg Cu kg–1 s.m. Wyniki badań wskazują, że stężenia metali ciężkich nie przekraczają norm określonych dla gleb Polski. Kumulacja metali ciężkich w organizmach zwierząt glebowych była znacznie wyższa niż w glebie. W największym stężeniu w organizmach badanej fauny glebowej występował Zn i Pb. Najwyższą zawartość Zn (ponad 19904 ppm) stwierdzono w organizmach drapieżców na stanowiskach leśnych. Natomiast wysokie stężenia ołowiu wykazano u fitosaprofagów w glebach łąkowych (128-421 ppm) i drapieżców na stanowiskach leśnych (200 i 500 ppm). Stwierdzono, że drapieżne zwierzęta glebowe lepiej akumulowały badane metale ciężkie w glebach leśnych niż inne grupy troficzne.
Content was studied of selected heavy metals - cadmium Cd, lead Pb, zinc Zn, copper Cu and nickel Ni in meadow soils and in forest soils and in soil animals samples extracted from soil. Positions were located at different distances from the road and from sources of industrial emissions. Soil fauna were separated into trophic groups of saprophags, predators and phitosaprophags, in which heavy metals were determined. Soils on the test sites showed little reaction from acidic to slightly alkaline and humidity within 20-32%. The range of metals content in soils amounted to properly: 0.630.94 ppm Cd; 8.812.53 ppm Pb; 77.75148.78 ppm Zn; 12.17±23.91 ppm Ni and 1.588.95 mg Cu • kg–1 s.m. The results from the studies show that the heavy metal concentrations did not exceed the standards set out for the soils of Poland. Heavy metals accumulation in soil animal organisms was significantly higher than in the soil. In the examined organisms of soil fauna, the metals in the highest concentration were zinc and lead. The highest content of Zn (> 19904 ppm) was found in the bodies of the predators in forest stands. High concentrations of lead have been demonstrated in phitosaprophags in meadow soils (128-421 ppm) and in predators in forest sites (200-500 ppm). It was found that predators of soil animals are better at bioaccumulations of tested heavy metals in forest soils (BCF > 60) than other trophic groups.
Źródło:
Proceedings of ECOpole; 2013, 7, 1; 295-302
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uptake of Toxic Trace Metals (Cd, Pb) and Micro Nutrients (Cu, Zn, Mn) by Sugarcane (Saccharum Officinarum L.) Irrigated with Treated Effluents of Sugar Industry
Autorzy:
Damodharan, U.
Reddy, M. V.
Powiązania:
https://bibliotekanauki.pl/articles/205208.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
trace metals
bioconcentration
transfer factor
sugarcane juice
treated effluent irrigation
metale śladowe
biokoncentracja
sok z trzciny cukrowej
nawadnianie
oczyszczone ścieki
Opis:
The accumulation and translocation of trace metals in soil and in sugarcane crop irrigated with treated effluents from sugar industry compared to soil and sugarcane crop irrigated with bore-well water were determined. In the present study the impact of irrigation with treated effluent from the sugar industry on the trace metal contamination of sugarcane juice was assessed. It revealed that the mean concentrations of Cd, Pb, Cu, Mn and Zn in the soil of fields irrigated with effluent and in juice from sugarcane grown on such fields were higher than those from bore-well water irrigated fields. The concentrations of trace metals in treated effluent exceeded the permissible limits of the Indian standards (Central Pollution Control Board-2000). The concentrations of Cd, Pb, Cu and Zn in juice of sugarcane grown on fields irrigated with effluent also exceeded the permissible limits of Indian standards and WHO/FAO expert committee recommendations. Their concentrations in juice of sugarcane grown in fields irrigated with bore-well water were within the limits of safety, except for Cd. The transfer factor for Zn was considerably higher than those of the other trace metals. The metal concentrations of sugarcane juice showed significant correlations with those of soil, which was not the case when bore well water was used for irrigation.
Źródło:
Archives of Environmental Protection; 2014, 40, 1; 13-22
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of metal uptake factors of native trees colonizing an abandoned copper mine e a quest for phytostabilization
Autorzy:
Nirola, R.
Megharaj, M.
Palanisami, T.
Aryal, R.
Venkateswarlu, K.
Naidu, R.
Powiązania:
https://bibliotekanauki.pl/articles/92134.pdf
Data publikacji:
2015
Wydawca:
Główny Instytut Górnictwa
Tematy:
abandoned mine site
heavy metals
bioconcentration factor
translocation factor
enrichment factor
phytostabilisation
opuszczone tereny kopalniane
metale ciężkie
współczynnik biokoncentracji
współczynnik translokacji
współczynnik wzbogacenia
fitostabilizacja
Opis:
Accumulation and enrichment of heavy metals in the above ground parts of Australian native Acacia pycnantha (Ap) and Eucalyptus camaldulensis (Ec) growing in an abandoned copper mine located in Kapunda, South Australia have been studied. Cu and other metals (Na, Al, K, Ca, Fe, Zn, Cd and Pb) in plants and corresponding soils were analysed to evaluate plant interaction with soils containing heavy metals. As per the total metal analysis of leaf and corresponding soil samples, Ap accumulated 93.6 mg kgˉ¹ of Cu in leaf while the corresponding soil concentration was 1632 mg kgˉ¹. The Ec accumulated 5341 mg kgˉ¹ of Cu in leaf while the concentration of this heavy metal in soil was 65 mg kgˉ¹ in soil. The ESEM spectral analysis also showed a high leaf concentration of Cu in Ec (7%) as against only 0.12% in Ap. The average bioconcentration factor for Cu, Zn,Cd and Pb in Ec wasmuch higher than that of Ap. Similarly, enrichment factor was more in Ec for Cu, Zn and Pb than in Ap. In contrast, translocation factor for only Zn and Cd was high in Ap. This study points out that Ec and Ap have different stabilising potential in remediating heavy metals like Cu in mined soils.
Źródło:
Journal of Sustainable Mining; 2015, 14, 3; 115-123
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of heavy metal contamination in topsoil and soil invertebrates from the Niepolomice Forest
Ocena zawartości metali ciężkich w glebie i bezkręgowcach glebowych w Puszczy Niepołomickiej
Autorzy:
Chrzan, A.
Powiązania:
https://bibliotekanauki.pl/articles/388475.pdf
Data publikacji:
2016
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
Niepołomice Forest
heavy metals
trophic groups
saprophags
predators
bioconcentration factor values
Puszcza Niepołomicka
metale ciężkie
grupy troficzne
saprofagi
drapieżne
wskaźnik biokoncentracji
Opis:
The purpose of the research was to determine the respective contents of heavy metals (Pb, Cd, Ni, Zn and Cu) in soil and extracted soil fauna in humid mixed coniferous forest (MHCF), fresh mixed coniferous forest (MFCF) and in fresh mixed forest (MFF) of Niepolomice Forest. The contents of heavy metals varied, depending on the forest type and trophic group. The highest values of cadmium, lead, and copper content were recorded in MFCF, while of nickel in MHCF. Analysis of variance and post-hoc Tuckey’s showed significant differences between the concentrations of Zn and other metals in invertebrates in different types of forest habitats. Bioconcentration factor shows that both soil saprophages and predacious invertebrates accumulated the largest amounts of Cd and smaller amounts of Zn, while the accumulation of remaining metals depended on the type of forest habitat. In fresh mixed coniferous forest predators accumulated heavy metals in the following order: Cd > Zn > Pb > Ni > Cu, in the case of saprohages it was: Cd > Zn > Ni > Cu > Pb.
Celem badań było określenie zawartość metali ciężkich (Pb, Cd, Ni, Zn i Cu) w glebie i wyekstrahowanej faunie glebowej w trzech typach siedliskowych lasu w Puszczy Niepołomickiej – w lesie mieszanym wilgotnym, borze mieszanym świeżym i borze mieszanym wilgotnym. Zawartość metali ciężkich uzależniona była od typu lasu i grupy troficznej. Najwieksze wartości kadmu, ołowiu i miedzi odnotowano w glebie w borze mieszanym świeżym BMśw, a niklu w borze mieszanym wilgotnym BMw. Wskaźnik biokoncentracji wskazuje, że zarówno saprofagi i drapieżne bezkręgowce glebowe w największej ilości kumulowały Cd, w mniejszej Zn, natomiast pozostałe metale kumulowane były w zależności od typu siedliskowego lasu. W borze mieszanym świeżym drapieżne kumulowały metale w kolejności Cd > Zn > Pb > Ni > Cu, a saprofagi Cd > Zn > Ni > Cu > Pb.
Źródło:
Ecological Chemistry and Engineering. A; 2016, 23, 3; 347-355
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of the trophic status, vulnerability to degradation, habitat conditions ichthyofauna and bioconcentration factors of lakes in the Barlinek-Gorzów Landscape Park
Autorzy:
Daniszewski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1119301.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Barlinek-Gorzów Landscape Park
bioconcentration factors
habitat conditions ichthyofauna
lakes
trophic status
vulnerability to degradation
Opis:
Urbanization is the cause of many changes which are taking place in the environment, including those found in the catchment. With this in mind, it is an important issue to properly protect water reservoirs and also take action to counter the adverse effects of human activities on the natural environment, including water bodies. To address the increasing degradation of surface waters in the European Union, the approach to the evaluation and protection of water resources was changed. This approach was formulated in the European Union Water Framework Directive (2000/60/EC), which calls for the protection of water, as well as an environment-friendly and comprehensive approach to water assessment. Herein, the ecological status of surface waters and groundwater is assessed on the basis of the ecological potential of the biological, physico-chemical and hydromorphological indicators.
Źródło:
World News of Natural Sciences; 2016, 5; 42-49
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparing Carex Species of Mid-Forest Spring Ecosystems in Terms of Ability to Accumulate Macro- and Microelements
Autorzy:
Parzych, A. E.
Sobisz, Z.
Jonczak, J.
Powiązania:
https://bibliotekanauki.pl/articles/123131.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Carex acutiformis
Carex echinata
Carex paniculata
Carex remota
Carex rostrata
nutrients
bioconcentration factor
Opis:
The aim of the research was to compare the accumulative macro- and microelements in the shoots of Carex acutiformis, Carex echinata, Carex paniculata, Carex remota and Carex rostrata. The content of components in the shoots of the plants was analyzed in relation the chemical composition of the soil. The research was done within the area of four mid-forest spring niches situated in the valley of a tributary of the Słupia River located within the area of Leśny Dwór Forest Inspectorate (Northern Poland). The examined species of Carex, in comparison to other plants in spring niches, were characterized by an average capacity to accumulate both macro- and microelements, which results in little interest in these species when planning artificial buffer zones. Out of the analyzed species, the shoots of C. echinata accumulated the largest quantities of Mg, Zn and Mn, the shoots of C. paniculata –Fe, C. remota – K, Ni, Al and Sr, C. acutiformis – N and P, and the shoots of C. rostrata –Ca and Cu. Similarities between the species of Carex, which resulted from their accumulative properties, were discovered. C. echinata and C. rostrata were characterized by high levels of bioconcentration factors (BF) for Sr, Cu and Ca and low BF for K. C. paniculata and C. remota represented high BF levels for Ni and Mg and low BF levels for Sr, Al, Mn, Cu, Ca, Fe and N. On the other hand, C. acutiformis was characterized by high BF levels for P, K and Mn. In spite of an average accumulative capacity, the examined species of Carex were characterized by highly developed surface and underground zones which had effective impact on the retention of pollutants.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 125-136
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plants and soil amendments for remediation of soil affected by synthetic oil and gas production wastewater
Autorzy:
Clay, L. H.
Pichtel, J.
Powiązania:
https://bibliotekanauki.pl/articles/363254.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
Bioconcentration factor
constructed wetlands
heavy metals
hyperaccumulator
produced water
soil remediation
Opis:
Oil and gas production water (PW) is brought to the surface when hydrocarbon reservoirs deep within geologic strata are extracted. Large volumes of PW present environmental challenges when released to the land surface due to high levels of salinity and potentially toxic elements. The effects of PW on soil chemical properties and plant response were investigated in both growth chamber and field studies. In the growth chamber, wheat (Triticum aestivum) and red clover (Trifolium repens) were grown in soil which was flooded with synthetic PW. The PW was enriched with several metals (Na, Cu, Cr, Pb) and had an acidic pH (2.5) and EC of 33,650 dSm-1. Soil amendments included food waste compost, composted biosolids, gypsum (CaSO4) and NPK 10-10-10 fertilizer. Metal concentrations in soil and plants were determined using flame atomic absorption spectrophotometry. The food waste compost provided for maximal uptake by clover of Cu, Cr and Pb compared to all other amendments. In several soil treatments both wheat and clover behaved as metal hyperaccumulators having high bioconcentration factors (BCF, ratio of metal concentrations of plant tissue to soil). Clover was the most efficient in accumulating Cu and Cr in shoots (BCF = 22.2 and 30.6, respectively). Greatest metal uptake in both plant species occurred in either the biosolids or compost treatment. In a field study, plots were flooded with synthetic PW and grown to corn (Zea mays) and a turf mixture (Kentucky bluegrass, Poa pratensis and perennial ryegrass, Lolium perenne). Both corn and turf accumulated substantial soil Cu and Pb. Corn experienced significant die-off; however, turf survived the PW application. Turf mixtures, clover and/or wheat may be suitable for phytoremediation of PW-affected soil. Addition of organic amendments to soil may enhance metal uptake by plants.
Źródło:
Environmental Biotechnology; 2017, 13, 2; 1-13
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk associated with heavy metals in children playground soils of Owerri metropolis, Imo State, Nigeria
Autorzy:
Wirnkor, Verla Andrew
Evelyn Ngozi, Verla Evelyn
Powiązania:
https://bibliotekanauki.pl/articles/1118068.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Bioconcentration
Metal fractions
Models
Predictive
Risk
Opis:
Despite recording the worst heavy metal disaster involving children, there is still scarcity of information on risk assessment of playground soils in Nigeria. In this study, thirty-six soil samples at 0-5 cm depth were collected from nine playgrounds in Owerri metropolis during the dry and rainy seasons. Five heavy metals were fractionated into six chemical fractions using a modified sequential extraction scheme and mean concentrations quantified by AAnalyst 400 Perkin Elmer AAS. Predictive risk models were used to obtain information about the risk of metals contamination to children using these playgrounds for longer periods. These reveal that there were no significant differences in the mean values of bioconcentration factors of all five metals in the various playgrounds for the two years of data. Even though risk values for both dry and rainy season followed the same trend, it was observed that the Zinc showed highest bioconcentration factors (1.6), average daily dose (230.08 mg/kg/day) and risk (5095593 mg/kg/6years). Over all, playgrounds UPS, TSO and SCP had highest mean risk values, respectively. Though with no clear trend, mobility factors showed a weak and positive correlation with risk. Children in playgrounds of public schools within Owerri metropolis could, therefore, be at risk of Mn, Cu and Zn toxicity problems as projected risk values were high for all studied playgrounds. This assessment could help identify playgrounds with urgent need for heavy metals reduction goals, consequently contributing to preserving children’s health.
Źródło:
World News of Natural Sciences; 2017, 10; 49-69
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Treatment of Heavy Metals From Water by Electro-Phytoremediation Technique
Autorzy:
Harikumar, P. S. P
Megha, T.
Powiązania:
https://bibliotekanauki.pl/articles/124037.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
phytoremediation
Eichhornia crassipes
bioconcentration factor
translocation abilit
Opis:
The performance of electrically stimulated phytoremediation in the removal of lead, cadmium and copper was assessed in this study. A combination of phyto and electro remediation was attempted in this study for the remediation of the metals from water. Three tanks were setup with different operating conditions for this experiment: control A (only phytoremediation system), control B (only electro remediation) and treatment (combination of phyto and electro remediation). The electrically enhanced phytoremediation system and electro remediation system were operated 2h/day at voltages of 4V for 25 days continuously. In this experiment, the Eichhornia crassipes, an able phytoremediator exhibited efficient and fast removal of heavy metals from synthetic solution in electro assisted phytoremediation system. The electrically enhanced phytoremediation using aluminum sheet electrodes showed better and effective removal of Cd, Pb and Cu than aluminum rod electrodes. A more favorable and moderate increase of pH was noticed in electrically stimulated phytoremediation system. Eichhornia crassipes has tremendous potential to reduce maximum amount of cadmium (within 15 days), lead (within 15 days) and copper (within 10 days) under electrically stimulated condition. Under electrified condition, maximum amount of Cd and Cu was accumulated in the aerial parts of Eichhornia crassipes but maximum concentration of Pb was attained by roots. This indicates the high heavy metal accumulation capacity of Eichhornia crassipes under electrified conditions. The results showed that 4V voltage is probably suitable to stimulate the Eichhornia crassipes to synthesize more chlorophyll and voltage can improve growth and ability to resist adverse circumstances by promoting chlorophyll synthesis. Eichhornia crassipes stimulated by an electric field has grown better and assimilated more metal. Bioconcentration factor (BCF) an index of hyperaccumulation, indicates that electrically stimulated Eichhornia crassipes is a good hyper accumulator of Cd (BCF = 1118.18) and Cu (BCF = 1152.47) and a moderate accumulator of Pb (BCF = 932.26). Translocation ability (TA) ratio indicates that Eichhornia crassipes have the ability to translocate more amounts of Pb, Cd and Cu to its upper portion under electrified condition. The results imply that the electro-phytoremediation technique seems to be promising in the treatment of wastewater contaminated with heavy metals.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 18-26
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of phytoaccumulation of trace elements in medicinal plants from natural habitats
Autorzy:
Tomaszewska-Sowa, M.
Kobierski, M.
Sawilska, A.K.
Figas, A.
Powiązania:
https://bibliotekanauki.pl/articles/72010.pdf
Data publikacji:
2018
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
trace element
heavy metal
phytoaccumulation
bioconcentration factor
translocation factor
medicinal plant
natural habitat
phytotherapy
Opis:
The high concentration of some trace elements in medicinal plants may lowering the value of herbal material, and may cause poisoning effects. The aim of this research was to evaluate the content of trace elements in the organs of: sandy everlasting, yarrow and stinging nettle. In the soil samples, the grain size composition, pH, the content of carbon and nitrogen were determined. In the plant material and for the soil samples, the total contents of Zn, Cu, Mn, Fe, Pb were assayed. The values of the bioconcentration factor and translocation factor were also calculated. The concentration of metals in plant tissues followed in order: Fe>Mn>Zn>Pb>Cu>Hg. The studied species of medicinal plants accumulated mainly Zn, Pb and Hg. It was also shown a high Hg mobility and a low Pb mobility which mainly accumulated in the roots.
Źródło:
Herba Polonica; 2018, 64, 3
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution of heavy metal lead (Pb) on macrozoobenthos in the Karangsong waters area, Indramayu Regency
Autorzy:
Rosidah, Rosidah
Prabowo, Agung
Lili, Walim
Herawati, Titin
Powiązania:
https://bibliotekanauki.pl/articles/1161875.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Karangsong waters area
bioconcentration factor
lead (Pb)
macrozoobenthos
Opis:
The study was conducted in July - August 2018 with the aim of analyzing the concentration of lead heavy metals (Pb) in water, sediment and macrozoobenthos in the Karangsong waters area, Indramayu Regency. The research method used is a survey method with purposive sampling technique that is the determination of location based on the existence of certain objectives and in accordance with various considerations, then observed the content of lead metal (Pb) in the Central Laboratory of Padjadjaran University. The research was conducted in situ and exsitu. Parameters of insitu research include temperature, pH and DO carried out in Karangsong waters, Indramayu Regency. Exsitu research parameters include testing of lead metal (Pb) on water, sediment and macrozoobenthos conducted at the Central Laboratory of Padjadjaran University. The results showed that the Pb concentration in the Karangsong waters had exceeded the threshold, which ranged between 1,05 – 1,33 mg/l, while the Pb concentration in sediment was higher than the Pb concentration in water. Lead metal in sediment has not exceeded the threshold. The ability of macrozoobenthos to accumulate lead metal in water and sediment (Bioconcentration Factor / BCF) is included in the low accumulative category because BCF is less than 100.
Źródło:
World Scientific News; 2018, 112; 207-216
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lead in Agricultural Soils and Cultivated Pastures Irrigated with River Water Contaminated by Mining Activity
Autorzy:
Orellana, Edith
Custodio, María
Bastos, María Carolina
Cuadrado, Walter
Powiązania:
https://bibliotekanauki.pl/articles/125204.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
lead
accumulation
Lolium x hybridum
ryegrass
Medicago sativa
alfalfa
bioconcentration
Opis:
Agricultural soils that have been irrigated with the contaminated water from metallurgical mining activities for more than 70 years constitute an environmental problem as well as a concern for food security and human health. The presence of lead in the soil and cultivated pastures is highly dangerous, due to its toxicity, persistence and accumulation in plants and animals (cattle). This element enters the trophic chain of humans due to the intake of meat, milk and its derivatives. The concentration of lead was determined in the soil and the cultivated pastures with Lolium x hybridum Hausskn and Medicago sativa L. The soil and pastures samples collected from plots irrigated with river water contaminated with heavy metals at a depth of 0-20 cm. The content of Pb determined by the atomic absorption spectrophotometry. The results showed the lead concentrations in soil in the range of environmental quality standards for soils according to Peruvian regulations. In the soil with L. x hybridum and M. sativa the average content of lead was 57.17 ± 6.29 mg.kg-1 and 57.19 ± 8.99 mg.kg-1; in the above-ground tissues were 1.17 ± 0.69 mg.kg-1 and 1.62 ± 0.68 mg.kg-1, respectively. In addition, no significant differences were observed in the Pb content in the soil and plant tissues. The bioconcentration factor (BCF) in the above-ground tissues of L. x hybridum and M. sativa was less than one and they were not significant. Therefore, irrigation with long-term contaminated water is not a concern for the farmers in the Mantaro Valley.
Źródło:
Journal of Ecological Engineering; 2019, 20, 8; 238-244
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 17

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