نتایج جستجو برای: igeo
تعداد نتایج: 351 فیلتر نتایج به سال:
The contamination characteristics and health risk of barium (Ba), cobalt (Co), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), lead (Pb), vanadium (V), zinc (Zn), arsenic (As), mercury (Hg), and cadmium (Cd) in samples of dust gathered from squares and parks of Baotou city, an industrial city situated in a semi-arid location of the northwest China were investigated. The contents of Ba,...
Cr, Co, Cu, Zn, Cd and Pb in the bottom sediments from 93 sites at Quiberon bay were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICPMS) after acid extraction. The ranges of the concentration in the sediments are as follows: 27.3 μg/g (Cr), 11.6 μg/g (Co), 13.8 μg/g (Cu), 42.0 μg/g (Zn), 0.08 μg/g (Cd) and 17.8 μg/g (Pb). Potential contamination of the bay was assessed by Igeo and ...
Background: Evaluation of heavy metals as toxic pollutants in environment has a significant importance in environmental pollution studies. surficial sediments of water resources have a high potential in releasing heavy metals to the upper water environment, hence sediment analysis presents guidelines to the authorities for monitoring the environmental systems. Methods: In this study, total an...
Risk of metals in urban soils is less studied, compared to that in other types of soils, hindering accurate assessment of human exposure to metals. In this study, the concentrations of five metals (As, Cd, Cr, Pb, and Hg) were analyzed in 167 surface soil samples collected from Suzhou city and their potential ecological and human health risks were assessed. The mean concentrations of As, Cd, Pb...
The Salado River is a lowland river that drains vast and productive region of central Argentina into the Río de la Plata estuary. To evaluate water quality geochemistry major trace metals (Fe, Mn, Zn, Cu, Pb, Cr Ni), sediments samples were collected along 500 km basin (n = 21). Waters highly alkaline (pH: 8.8 ± 0.4), saline (5.2 1.8 mS/cm), turbid (467 237 NTU) eutrophic (chlorophyll a: 187 119...
Kawasan muara merupakan salah satu ekosistem perairan yang sering mengalami kontaminasi logam berat seperti nikel (Ni), cadmium (Cd), timbal (Pb), dan merkuri (Hg). Kontaminasi tersebut biasanya berasal dari aktivitas manusia kegiatan rumah tangga, perkapalan, industri. Salah wilayah terletak di sekitar kawasan adalah laut Pulau Pasaran. ini terkenal sebagai sentra pembuatan ikan asin Provinsi ...
The aim of the research was to show changes taking place in soils as a result influence anthropogenic factors form intensive horticulture and pollution within city. It made on basis distribution individual fractions well available total Cu forms profiles garden located at houses family allotment gardens six cities south-eastern Poland. took into account granulometric composition according which...
eight selected heavy metals (cu, zn, pb, cd, cr, mn, fe and al) in surface and sub-surfacesediments in the northern coast of sfax (tunisia) were studied in order to assess the sediment quality and tohighlight the anthropogenic contributions to heavy metal distributions in the two study sediment levels.multiple chemometric approaches based on geographic information system (gis), enrichment facto...
In tropical and subtropical latitudes, woody plants known as mangroves flourish in slimy, anaerobic soils on the boundary between land sea. They can withstand extreme weather conditions like high temperatures, unreliable tides, strong winds, salt. The objective of this study was to determine concentration nine trace elements (Hf, Ga, Ba, V, Cs, Sc, Sb, Ta, Co) sediment mangrove forest along wes...
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