نتایج جستجو برای: cr and mn to extremely polluted for zn

تعداد نتایج: 20266744  

2012

Two short sediment cores collected from mangrove areas of Manori and Thane creeks along Mumbai coast were analysed for sediment composition and metals (Fe, Mn, Cu, Pb, Co, Ni, Zn, Cr and V). The statistical analysis of Pearson correlation matrix proved that there is a significant relationship between metal concentration and finer grain size in Manori creek while poor correlation was observed in...

Journal: :Environmental science and pollution research international 2011
Qin Lu Zhenli L He Donald A Graetz Peter J Stoffella Xiaoe Yang

BACKGROUND, AIM AND SCOPE Water quality impairment by heavy metal contamination is on the rise worldwide. Phytoremediation technology has been increasingly applied to remediate wastewater and stormwater polluted by heavy metals. MATERIALS AND METHODS Laboratory analysis and field trials were conducted to evaluate the uptake of metals (Al, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, and Zn)...

Journal: :Journal of Marine Science and Engineering 2022

Red Sea coastal development has rapidly accelerated in recent decades that led to a rise the anthropogenic heavy metal levels sediments. A total of 80 surficial sediment samples were collected from shallow waters along eastern coast near Jeddah, Saudi Arabia. These three locations, designated as North, Middle and South assess concentrations six metals: chromium (Cr), manganese (Mn), nickel (Ni)...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم انسانی 1389

abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...

2015
Jun Ren Zhen Shang Ling Tao Xia Wang

The concentrations of heavy metals in 21 samples collected from surface sediments from the Qinghai section of the Yellow were investigated in order to evaluate their distribution and pollution levels. The total concentrations showed wide variations with Cu 11.86~57.02 mg/kg, Fe 17236.67~41340.00 mg/kg, Mn 431.93~877.27 mg/kg, Ni 14.58~86.11 mg/kg, Zn 67.18~149.00 mg/kg, Cr 87.84~169.70 mg/kg, P...

Journal: :Journal of environmental management 2009
Sanja M Sakan Dragana S Dordević Dragan D Manojlović Polić S Predrag

In this study we have worked on the evaluation of heavy metal contamination in the sediments taken from the Tisza River and its tributaries, and thereby used the sequential extraction method, geochemical normalization, the calculation of the enrichment factor (EF), and the methods of statistical analysis. The chemical fractionation of Ni, Cu, Zn, Cr, Pb, Fe, and Mn, carried out by using the mod...

Journal: :international journal of environmental research 0

this 4x2 factorial study compared the effect of four sites (a=siphon as upstream, andb=shahdera, c=sunder and d= balloki as 3 downstream sites) during low and high flow seasons of river ravion metal cconcentrations in muscles from cirrhinus (c) mrigala, a bottom feeder carp. while weight andlength of studied specimens did not differ significantly (p>0.05). overall metal accumulations appeared i...

Journal: :Nigerian Journal of Life Sciences 2022

Bioaccumulation of any heavy metal above its maximum limits invariably results tothe detrimental health an organism. This present study was carried out to evaluatethe levels eight metals (Fe, Pb, Mn, Ni, Cu, Zn, Cr and Cd) in surface water,sediment bioaccumulation index (Chrysicthys walkeri) from Warri River, DeltaState, Nigeria. Samples were collected between the period July September,2015 two...

ژورنال: علوم آب و خاک 2016
احمدی دوآبی, شهاب, افیونی, مجید, خادمی, حسین, کرمی, مهین,

Heavy metals in dust can directly enter to the human body through ingestion and inhalation. They can pollute the water and soil resources via atmospheric precipitation and accumulate in the plant tissues and then enter human body through water and food. This research aimed to study the heavy metals concentration in dust in Kermanshah province and to identify their sources. 49 samples of dust we...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

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