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    Wyświetlanie 1-6 z 6
    Tytuł:
    Quantification of Heavy Metals in the Sediment ecosystem of Ulhas River flowing along Dombivli City of Mumbai
    Autorzy:
    Jadhav, Amol M.
    Singare, Pravin U.
    Powiązania:
    https://bibliotekanauki.pl/articles/1194028.pdf
    Data publikacji:
    2015
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Dombivli
    Mumbai
    Ulhas River
    heavy metals
    industrial pollution
    sediments
    Opis:
    The Dombivli city near Mumbai has rapid industrialized. However the improper environmental planning has resulted in discharge of industrial waste effluents from the industrial belt into the Ulhas River. These wastes from these industries include various toxic heavy metals which subsequently accumulate in the sediments of Ulhas River. This day by day increasing tremendous pollution load has provoked us to carry the systematic and detailed study of heavy metal content in the sediment samples collected along the Ulhas River along the Dombivli City, near Mumbai. The study was conducted in year 2012 and 2013. The study was carried out in along the banks of Ulhas River near the discharge of effluents from Dombivli Industrial belt Phase I and Phase II. Accordingly the sampling points were identified. The analysis for the majority of the toxic heavy metals like Cadmium (Cd), Copper (Cu), Nickel (Ni), Chromium (Cr), Cobalt (Co), Iron (Fe), Lead (Pb), Mercury (Hg), Arsenic (As) and Zinc (Zn), in sediment samples was done. From the results of our study, it can be concluded that there is a need of systematic and regular monitoring of pollution level along the Ulhas River so as to generate the data on accumulation of heavy metals in the river sediments which will further help in improving the industrial waste treatment technology adopted along the Dombivali industrial belt. It is expected that such scientific studies will help to gauge the extent of pollution in order to avoid long term irreparable damage to the ecosystem.
    Źródło:
    World Scientific News; 2015, 10; 1-16
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wood structure of Scots pine (Pinus sylvestris L.) growing on flotation tailings
    Autorzy:
    Górska, Marta
    Roszyk, Edward
    Powiązania:
    https://bibliotekanauki.pl/articles/2044121.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badawczy Leśnictwa
    Tematy:
    flotation tailings
    heavy metals
    industrial pollution
    Scots pine
    tracheids
    Opis:
    The aim of this study was to examine Scots pine (Pinus sylvestris L.) xylem changes caused by heavy metal pollution. Annual rings width, number of tracheids in radial rows and the length of tracheids in the wood from trees growing on post‑flotation tailings have been measured. Dimensions of tracheids have been examined separately for earlyand latewood of each radial increment. The most demonstrable changes are observed in the tracheids length, which appears to be shorter in the xylem from the industrial area than in the control samples. In the wood from the polluted site, the variability of length of tracheids is increased. Microscopic observations revealed numerous deformations in the xylem tissue and deviations from the standard cell arrangement. Circumferential deformations occurring in the wood structure may indicate the increasing spring frost vulnerability of these trees.
    Źródło:
    Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 2; 112-122
    0071-6677
    Pojawia się w:
    Folia Forestalia Polonica. Series A . Forestry
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fate and Management of Pollution of Hexavalent Chromium Cr(VI) and Heavy Metals in the Zarqa River Basin in Jordan
    Autorzy:
    Shammout, Maisa'a W.
    Shatanawi, Muhammad
    Awwad, Akl M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2026728.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    Zarqa River Basin
    industrial activity
    water pollution
    hexavalent chromium
    Cr(VI)
    heavy metals
    decision maker
    Opis:
    This paper focused on the fate of pollution and management of hexavalent chromium Cr(VI) and heavy metals in the Zarqa River Basin in Jordan. The Zarqa River basin was selected in this research because it contains the majority of Jordanian industries, which are the main source of pollutants including Cr(VI) and heavy metals. This will help in assisting water resource management organizations in decision making when coping with pollution. Industries related to sources and impacts of Cr(VI) and heavy metals were identified, and the administration measures were highlighted according to their role in improving water quality. An analysis of water samples along the Zarqa River was conducted between 2016-2019 to evaluate the heavy metals concentrations and compare the results with the Jordanian standards. Findings showed that Cr(VI) was below the allowable limits (<5 μg/l), and the heavy metals were within the allowed limits set forth in the Jordanian Standard. The ranges of water analysis values (μg/L) were; DO 4640–6480, Fe <40–80, Mn 20–128, Co <20–30, Pb 80–190, Zn 70–100, and Cu <80–190, Al 700–730, V <70–100, B <300–351, Si 1100–1800, Ni 30, and Cd <10. These findings indicated that the quality of the Zarqa River would not cause hazardous effects. However, this was not the case few years ago due the current protection measures. At present some industries have been relocated from the Zarqa Basin to an area that does not pose any environmental hazards, while the rest of industries remained in the basin, but they have established an on-site treatment plant for industrial waste under the control of Jordanian government, and the enforcement of the environmental protection law. These measures must be monitored and updated by decision makers in a sustainable manner to prevent any water pollution.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 2; 108-115
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ wybranych metali ciężkich na wzrost i namnażanie promieniowców z rodzaju Streptomyces izolowanych z gleb
    The effect of the selected heavy metals on the growth and proliferation of Streptomyces spp. isolated from soils
    Autorzy:
    Lenart-Boroń, A
    Boroń, P
    Banach, T
    Powiązania:
    https://bibliotekanauki.pl/articles/296838.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    Streptomyces spp
    promieniowce
    gleby
    metale ciężkie
    tereny przemysłowe
    zanieczyszczenie środowiska
    actinobacteria
    soils
    heavy metals
    industrial areas
    environmental pollution
    Opis:
    Mając na uwadze wzrost zanieczyszczenia środowiska naturalnego metalami ciężkimi i ich oddziaływanie na mikroorganizmy w glebie, podjęto próbę określenia wpływu wybranych metali ciężkich: miedzi, kadmu, cynku i ołowiu na wzrost promieniowców wyizolowanych z gleb pobranych z terenu huty ArcelorMittal w Krakowie. Do badań wykorzystano 5 gleb, z których do dalszych badań wyselekcjonowano 10 izolatów promieniowców należących do rodzaju Streptomyces. Przeprowadzone analizy wykazały, że obecność huty przyczynia się do zanieczyszczenia środowiska glebowego poprzez emisje metali ciężkich. Ma to wpływ także na populację promieniowców w glebie nie tylko poprzez ograniczenie ich liczebności, lecz również poprzez selekcję szczepów opornych na zanieczyszczenia gleb, a przez to na ograniczenie ich bioróżnorodności. Pośrednim skutkiem ograniczenia różnorodności promieniowców może być wyginięcie szczepów ważnych pod względem funkcjonalnym dla środowiska, zubożenie mikroflory gleby, a także zmiany właściwości fizykochemicznych gleby. Niniejsza praca pokazuje, że skażenie środowiska metalami ciężkimi jest poważnym problemem środowiskowym. Zjawisko to należy monitorować i kontrolować, aby zapobiec nieodwracalnym zmianom w ekosystemie.
    People have changed their environment since the beginning of the civilization - it is an inevitable process. However, this phenomenon is accompanied by emission of many harmful chemicals to the environment, and recently there has been an increase in the amount of pollution. Having regard to the increase in environmental contamination with heavy metals due to the expanding industry and its impact on soil microorganisms, this study attempted to determine the effect of the selected heavy metals: cadmium, copper, lead and zinc, on the growth of actinobacteria (belonging to the genus Streptomyces) isolated from soils of ArcelorMittal steelworks in Cracow. Five soil samples were selected for the analysis, from which 2 isolates of Streptomyces spp. were selected for further analyses. The number of Streptomyces spp. in the soil samples was determined using the serial dilutions method. The systematic affiliation of microorganisms was confirmed by macroscopic as well as microscopic observations of Gram-stained smears, catalase reaction test and the sequencing of 16S rDNA region. Additionally, soil physical and chemical properties were examined - pH, moisture and heavy metal content - using atomic spectrometry. The heavy metal resistance of the examined Streptomyces spp. strains was analyzed using a well method with increasing concentrations of cadmium, copper, lead and zinc. After the incubation results were recorded as the growth inhibition zones (diameters) and the minimum inhibitory concentration (MIC) of the heavy metals were determined. The conducted analyses revealed that heavy metal concentrations in two out of five examined soils exceeded the admissible values given by the Regulation of the Minister of Environment on soil quality standards. The number of actinobacteria in soils was varied (from 6700 to almost 250 thousand CFU per gram of soil dry weight). There was a negative correlation between the heavy metal concentrations in soils and the number of the studied microorganisms. The analyzed soils were alkaline - the lowest pH value was 7.7. Regarding the heavy metal resistance of the analyzed Streptomyces spp. strains, diverse in vitro susceptibility was recorded. The bacterial reactions differed even between strains isolated from the same soil samples. Minimum inhibitory concentrations of the examined heavy metals were as follows: Cd and Cu - 100 μg • cm−3, Zn - 3000 μg • cm−3 and Pb - 8000 μg • cm−3. There was a negative correlation between the concentration of heavy metals in soils and the growth inhibition zones (in the case of cadmium this correlation was high), indicating that the soil contamination with cadmium may have modified the soil population of Streptomyces spp., causing extinction of the susceptible strains while the ones with reduced sensitivity survived. The results of the presented research indicated that the ArcelorMittal steelworks contaminates the soil environment, which may affect the microbial community of soils, not only by reducing the population, but also by decreasing biodiversity of soil microorganisms, which was particularly visible in the case of cadmium - a strongly toxic heavy metal. This study demonstrates that the heavy metal contamination is a serious environmental problem. This phenomenon needs to be monitored and controlled to prevent irreversible changes to the ecosystem.
    Źródło:
    Inżynieria i Ochrona Środowiska; 2013, 16, 1; 81-91
    1505-3695
    2391-7253
    Pojawia się w:
    Inżynieria i Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contamination of soils with heavy metals in the industrialized region of western Ukraine: western Podole Upland
    Zanieczyszczenia metalami ciężkimi gleb uprzemysłowionego rejonu zachodniej Ukrainy
    Autorzy:
    Mandryk, O.
    Radlovska, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/385356.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    soil contamination
    heavy metals
    air pollution
    industrial emission
    Western Ukraine
    zanieczyszczenie gleby
    metale ciężkie
    zanieczyszczenia powietrza
    zanieczyszczenie przemysłowe
    zachodnia Ukraina
    Opis:
    Contamination of surface soil horizons with heavy metals is usually related to long-lasting air pollution and might potentially affect soil fauna, as well as plant growth, harvesting and health of plant consumer. In order to estimate potential health risk, we investigated surface and subsurface soil contamination with heavy metals in avable area in one of the most industrialized region of western Ukraine, western Podole Upland. In total 80 samples from the area of about 35 km2 were sampled and analyzed for content of zinc, nickel, copper, cobalt, lead, arsenic and quicksilver. The research revealed several anomalies, where the content of these elements exceed 3-5 Ukrainian quality guidance for avable soils. Soils are the most contaminated with arsenic and quicksilver, with maximum concentrations exceeding local geochemical background about 20 times. Maximum nickel and zinc concentrations are about 10 times higher than the background while the content of copper and cobalt is elevated up to several times.
    Zanieczyszczenie powierzchni gleb metalami ciężkimi jest zazwyczaj wiązane z długotrwałym zanieczyszczeniem powietrza i może wpłynąć na faunę glebową, a także na wzrost roślin oraz zdrowie konsumentów. W celu oszacowania potencjalnego zagrożenia dla zdrowa autorzy badali zanieczyszczenie metalami ciężkimi powierzchni gruntów ornych w jednym z najbardziej uprzemysłowionych regionów zachodniej Ukrainy - zachodnim Podolu. Z powierzchni około 35 km2 pobrano w sumie 80 próbek, które przebadano i przeanalizowano pod względem zawartości cynku, niklu, miedzi, kobaltu, ołowiu, arsenu i rtęci. Badania wykazały liczne nieprawidłowości. Zawartość tych pierwiastków przekracza 3-5 ukraińskich norm jakości gleb uprawnych. Gleby te są najbardziej zanieczyszczone związkami arsenu i rtęci, których maksymalne stężenia lokalnie przekraczają normy geochemiczne aż 20-krotnie. Stężenie niklu i cynku wynosi maksymalnie około 10 razy więcej, niż przewiduje norma, podczas gdy zawartość miedzi i kobaltu jest podwyższona kilkukrotnie.
    Źródło:
    Geomatics and Environmental Engineering; 2013, 7, 1; 75-82
    1898-1135
    Pojawia się w:
    Geomatics and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Screening of the spatial distribution of risk metals in topsoil from an industrial complex
    Rozkład przestrzenny metali toksycznych w górnej warstwie gleby terenu przemysłowego
    Autorzy:
    Slavík, R.
    Julinová, M.
    Labudíková, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/126722.pdf
    Data publikacji:
    2012
    Wydawca:
    Towarzystwo Chemii i Inżynierii Ekologicznej
    Tematy:
    industrial urban soil
    pollution
    heavy metals
    multivariative statistics
    cluster analysis
    EDXRF
    AAS
    GIS
    przemysłowe gleby miejskie
    zanieczyszczenia
    metale ciężkie
    analiza skupień
    Opis:
    For the sustainable development of urban areas, it is necessary to identify if environmental pollution exists and where hot spot pollution sources lie. In this study, 280 topsoil samples were collected from an industry estate in Zlin (the Czech Republic). In these samples, the presence of toxic metal was analyzed by wave dispersed X-Ray fluorescence (ED-XRF), and statistical analysis revealed that the major anthropogenic contaminants in the topsoil were Pb, Zn and Sn. Further contaminant analysis by atomic absorption spectrometry (AAS) determined the maximum contents of 28558.47 mg/kg for Pb, 1132.35 mg/kg for Sn and 2865.22 mg/kg for Zn in selected topsoil samples. According to soil pollution index results, the main proportion of topsoil is contaminated, with the possible sources of contamination being traffic and a nearby municipal heating plant. This study proves that the combination of preliminary ED-XRF topsoil analysis, a multivariative statistical approach, AAS analysis and the geographical information system (GIS) is effective and together form a powerful tool for mapping topsoil contamination and conducting an environmental risk assessment.
    Źródło:
    Proceedings of ECOpole; 2012, 6, 1; 113-119
    1898-617X
    2084-4557
    Pojawia się w:
    Proceedings of ECOpole
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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