نتایج جستجو برای: and metals

تعداد نتایج: 16838403  

The concentration of selected trace metals (Fe, Cd, Cu, Pb, and Zn) in 30surface sediments were measured using Atomic Absorption Spectrometer to investigatethe spatial and seasonal variations of trace metals along Kanyakumari coast, India. Toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...

Journal: Pollution 2016

The concentration of selected trace metals (Fe, Cd, Cu, Pb, and Zn) in 30surface sediments were measured using Atomic Absorption Spectrometer to investigatethe spatial and seasonal variations of trace metals along Kanyakumari coast, India. Toassess the environmental risk of trace metals, enrichment factor, geo-accumulation index,pollution load index, and ecological risk index have been calculat...

Journal: :international journal of environmental research 0
m. rastegari iran university of science and technology, tehran, iran m. saeedi iran university of science and technology, tehran, iran a. mollahosseini iran university of science and technology, tehran, iran m. ayatinia iran university of science and technology, tehran, iran

several factors effect on sorption of polycyclic aromatic hydrocarbons (pahs) in soil. co-existence of metals and organic matter of soil are among important affecting factors on sorptive behavior of pahs. this research investigated the effect of organic matter content and heavy metals (lead, nickel and zinc), on sorption of phenanthrene onto kaolinite. for this purpose, sorption of the organic ...

Journal: :iranian journal of toxicology 0
محمدرضا وصالی ناصح mohammad reza vesali naseh , university of tehran, tehran, iran. عبدالرضا کرباسی abdolreza karbassi , university of tehran, tehran, iran. فریدون غضبان fereydoon ghazaban , university of tehran, tehran, iran. اکبر باغوند akbar baghvand , university of tehran, tehran, iran.

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 and ...

Journal: :international journal of environmental research 0

this study investigates the status of heavy metals contaminations in urban soils of ostrava inthe czech republic. the main aim of this study was determination of concentration of cd, pb, zn, cu, mn,v and hg, assessment of contamination levels of metals in urban soils and verification of potential source ofmetals contamination. soil samples were collected from soil layer of 20 cm and metals were...

Journal: :journal of tethys 0

the objective of this study was to explore the application of hybrid artificial neural network methods to predict heavy metals in rainwater based on major elements. measurements of the heavy metals pb, cu, zn, as, ni, hg, and fe in soluble rain fractions were performed in rainwater collected at the arak plain during the rainy seasons of 2012. in the soluble fractions, the concentrations of the ...

ژورنال: علوم آب و خاک 2014

Atmospheric dust is an important source of heavy metals, particularly in urban environments. Heavy metals can easily attach to dust particles and be distributed in large areas. The objective of this study was to evaluate the status of major heavy metals in the atmospheric dust of Isfahan and adjacent cities. A total of 144 dust samples were taken during a period from August to December 2010 fr...

Journal: :jundishapur journal of health sciences 0
seyyedeh marzieh moosavian khouzestan science and research branch, islamic azad university, ahvaz, ir iran; khouzestan science and research branch, islamic azad university, ahvaz, ir iran. tel: +98-9166028053, seyyed mohammad baghernabavi department of environmental science, graduate school of the environment, science and research branch ,islamic azad university, ahvaz, ir iran elahe zallaghi young researchers club, khouzestan science and research branch, islamic azad university, ahvaz, ir iran maryam mohammadi rouzbahani department of environmental science, graduate school of the environment, science and research branch ,islamic azad university, ahvaz, ir iran elham hosseini panah khouzestan science and research branch, islamic azad university, ahvaz, ir iran moloud dashtestani khouzestan science and research branch, islamic azad university, ahvaz, ir iran; department of environmental science, graduate school of the environment, science and research branch ,islamic azad university, ahvaz, ir iran

background bivalves have been used to study pollution level caused by heavy metals due to their biological characteristics. bahrakan region includes bahrakansar, hendijan, norouz and soroush oil fields, and current information regarding sea management, especially from the protective aspect is very little. objectives this study aimed to assess region pollution with heavy metals. for this purpose...

Journal: :iranian journal of toxicology 0
mohammad mohiseni department of fisheries, behbahan khatam alanbia university of technology, behbahan, iran. mehrdad farhangi department of fisheries, university of tehran, karaj, iran. naser agh phd of fisheries, artemia and aquatic animals research center, university of urmia, urmia, iran. alireza mirvaghefi department of fisheries, university of tehran, karaj, iran. khalil talebi department of entomology, university of tehran, karaj, iran.

background: artemia urmiana are small crustaceans that because of its non-selective filter feeder pattern potentially may absorb high level of heavy metals through their living environment. in this study, the effects of different levels of cadmium and copper on survival, catalase activity and metals bioconcentration rates in a. urmiana nauplii have been investigated. methods: the research was c...

A greenhouse experiment has been planned for this study to delineate the benefits of two types of rice husk biochars (namely B300 and B600 which are prepared at 300°C and 600°C, respectvely) and coal fly ash (CFA), as soil amendments, for decreasing the amount of some heavy metals (like Pb, Cd, Ni, Cr, and Cu) as well as mobility and phytoavailability in an artificially-calcareous multi-element...

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