نتایج جستجو برای: elements concentration

تعداد نتایج: 648390  

Journal: :Journal of environmental sciences 2015
Naeem Saqib Mattias Bäckström

Impact of waste fuels (virgin/waste wood, mixed biofuel (peat, bark, wood chips) industrial, household, mixed waste fuel) and incineration technologies on partitioning and leaching behavior of trace elements has been investigated. Study included 4 grate fired and 9 fluidized boilers. Results showed that mixed waste incineration mostly caused increased transfer of trace elements to fly ash; part...

Journal: :علوم باغبانی 0
عبدالحسین ابوطالبی عنایت اله تفضلی

abstract one way of the increasing saline tolerance in citrus plants is grafting of sensitive commercial cultivars on to tolerant rootstocks. sweet lime (citrus limetta) is one of the most sensitive species to salinity of soil and water, and under such conditions, drastic reduction of both vegetative and yield occured. this reaserch was conducted in completely randomaized design with factorial ...

A. Yaghoobi, J. Salimi, K. Moosavi, S. Vatankhah,

Background: Within the context of developing techniques to facilitate the diagnosis of the thyroid diseases, the elemental composition of pathological thyroid tissue (neoplastic and non-neoplastic) was investigated by proton induced X-ray emission. The PIXE has been widely used as a sensitive technique for trace elemental analysis in both biological and medical fields. Materials and Methods: Th...

Journal: :international journal of environmental research 2013
m. długaszek k. kopczyński

in the paper, the contents of calcium (ca), magnesium (mg), zinc (zn), copper (cu), iron (fe),manganese (mn), chromium (cr), lead (pb), cadmium (cd), aluminium (al), and nickel (ni) were determinedin the meat of roe deers, wild boars, and hares coming from central region of poland. measurements werecarried out using atomic absorption spectrometry. the ranges of median values found for the conce...

Journal: :international journal of environmental research 0
m. długaszek military university of technology, institute of optoelectronics, 00-908 warsaw, gen. sylwestra kaliskiego 2 str., poland k. kopczyński military university of technology, institute of optoelectronics, 00-908 warsaw, gen. sylwestra kaliskiego 2 str., poland

in the paper, the contents of calcium (ca), magnesium (mg), zinc (zn), copper (cu), iron (fe),manganese (mn), chromium (cr), lead (pb), cadmium (cd), aluminium (al), and nickel (ni) were determinedin the meat of roe deers, wild boars, and hares coming from central region of poland. measurements werecarried out using atomic absorption spectrometry. the ranges of median values found for the conce...

Journal: :iranian journal of radiation research 0
a.a. fathivand radiation applications research school, nuclear science and technology research institute, tehran, iran h. khalafi radiation applications research school, nuclear science and technology research institute, tehran, iran m. vahabi-moghaddam university of guilan, p.o. box 3489, rasht, iran y. kenare university of guilan, p.o. box 3489, rasht, iran m. bathaie radiation applications research school, nuclear science and technology research institute, tehran, iran

background: in addition to gas pollutants, many chemicals and air pollutants are in the form of particulate matter. particulate matter consists of a complex mixture of variable sized particles and physicochemical composition. these particles mainly contain minerals including fe, al, ca, k, cu, ti, mn, ni, v and their size, chemical composition and concentration are important to assess the exten...

ژورنال: علوم آب و خاک 2023

The relationship between the concentration of heavy metals and physicochemical factors was studied in the fine-grained sediments of the tidal section of the Mehran delta where mangrove trees have grown. Surface sediments of the tidal zone of the Mehran delta were sampled. The grain size distribution, calcium carbonate, organic matter contents, pH/Eh, and heavy metals concentration were determin...

Journal: :journal of research in health sciences 0
gilas hosseini pari teymouri behzad shahmoradi afshin maleki

background: the present study investigated the effect of the middle east dust storm episodes on the concentration and composition of pm 10 during april to september 2013 in sanandaj city, western iran. methods: sampling was once every six days, and on dusty days using an omni air sampler. the pm 10 sample was collected on polytetrafluoroethylene filters. average of 24 h values of pm 10 mass con...

Journal: :international journal of health studies 0
jaber yeganeh1 1. dept. of nursing, school of nursing & health, urmia university of medical sciences, urmia, iran saeid nazemi2* 2. dept. of environmental health engineering, school of public health, shahroud university of medical sciences, shahroud, iran. ardeshir yousefzadeh3 3. dept. of map and gis, governor general of west azarbaijan, head of, urmia, iran.

background : the present paper aims to study the effect of human and urban activities on the quality of groundwater within the city of khoy in terms of heavy metals, chemical salts, and minerals from the geological formations of this region. methods : samples were provided from 32 pumping wells and the concentration of heavy metals ( cd, cu, mn, pb, zn, fe, as, and b), the main ions (hco 3 ,so ...

Journal: :journal of chemical health risks 0
hamidreza boostani college of agriculture and natural resources, shiraz university, darab, iran alireza mahmoodi college of agriculture and natural resources, shiraz university, darab, iran esmaiel farrokhnejad college of agriculture and natural resources, shiraz university, darab, iran

the essential nutrients in the pharmacological plants play a significant role in the remedy of illnesses but, these elements at high levels; can also be dangerous and toxic. the aim of this study was to determine the concentration of macro (mg, ca, p, and k) and micro (cu, zn, fe and mn) essential elements in seven indigenous pharmacological plants growing in fars province, southern iran. they ...

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