نتایج جستجو برای: oes reservoir sediment contaminations by heavy metals were studied
تعداد نتایج: 8373625 فیلتر نتایج به سال:
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...
Background and purpose: Fish is an important source of protein for human and is an important part of the diet, so, studying the concentration of heavy metals in commercial fish could be helpful in evaluating the risk of fish consumption. Materials and methods: A total of 60 fish samples from four different species including anchovy, white, perch, and trout was randomly collected in fall 2016 f...
environmental pollution with heavy metals is a global struggle. phytoremediation is an effectiveand low-cost technology for refinement of polluted soils. this research was conducted in zanjan province(located in north west iran) where metallurgical industries are developed quickly. in this study, based on theheavy metals contamination of soil in the studied area six sampling sites were selected...
Background and Aim:This research was conducted of determining and comparing the heavy metals of zinc, iron, manganese, copper, nickel and vanadium in summer in waters and sediments of Naseri wetland in Khuzestan province, 2017. Material and Methods:Sampling of water and sediments from three areas of north, central and southern Naseri wetland was carried out in summer. In order to measure heavy...
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...
Background & Aims of the Study: Aquatic macrophytes, given their rapid growth and high bio mass production, great potential to accumulate heavy metals in their organs. Phragmites australis as a hyper-cumulative plant plays an important role in the bioremediation. The Badavar River of Noorabad, Lorestan province, is exposed to urban wastewater and agricultural runoffs. In order to heavy metals (...
Sediments are one of the biological indicators of the accumulation of heavy metals in aquatic ecosystems, which, due to the stability of a region, can well measure pollution. This research was conducted in 2018 with the aim of investigating heavy metals of Cobalt, Chromium, Manganese, Selenium and Molybdenum in sediments of Hooralazim wetland in Khuzestan province. A total of 27 sediment sample...
The exposure of heavy metals to lake bed sediment of scenic areas may pose risks on aquatic ecosystems and human health, however very few studies on risk assessment have been reported for scenic areas. Accordingly, this study determined concentration levels, and assessed contamination characteristics and risks, of heavy metals in lake bed sediment of National Scenic Areas Songhuahu (NSAS) in Ch...
Background and purpose: This study aimed to determine the origin and distribution of lead, copper, zinc, nickel, chromium and vanadium in surface sediments of Mazandaran coastline (southeastern coast of the Caspian Sea). Materials and methods: Surface sediment samples were collected from four transects in Tonekabon, Noshahr, Babolsar and Amir abad port, at three different depths of 5, 15 and 3...
Background and purpose: The Common Coot (Fulica atra) is an abundant aquatic bird in North of Iran and is anticipated to be a good indicator for metal pollution on north wetlands of Iran. The aim of this study was to determining metals concentration in water, sediment samples and two organs of Common coot (liver and kidney). Materials and methods: This study was tested on water, sediment and 3...
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