نتایج جستجو برای: lead and cadmium

تعداد نتایج: 16850888  

Journal: :international journal of marine science and engineering 2012
l. vahdatiraad h. khara

wetlands are often considered sinks for contaminants, and aquatic plants have been shown to play important roles in wetland biogeochemistry through their active and passive circulation of elements. in this research, in order to evaluate the concentration level of heavy metals released by the urban, industrial and agricultural activities at the margin of the rivers flowing into anzali lagoon, as...

Journal: :Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 1998
E De-Castro-e-Silva C P Luz C Sarmento T Nascimento V Gonzalez C A Marinho L Castro P Oliveira P Santana Júnior I R De-Oliveira S De-Paula A K Lima J B Fregoneze

We have previously demonstrated that acute third ventricle injections of both lead and cadmium prevent the dipsogenic response elicited by dehydration or by central injections of dipsogenic agents such as angiotensin II, carbachol and isoproterenol in rats. We have also shown that the antidipsogenic action of cadmium may be due, at least in part, to activation of thirst-inhibitory central serot...

ژورنال: علوم آب و خاک 2015
امینی, میترا, فرقانی, اکبر,

Any change in the characteristics of air, soil, water and food that adversely affect the health of the ecosystem, activities of human and other organismsis called contamination. Heavy metal uptake by plants depends on the type and concentration of metalin soil, its bioavailability, and plant species. The use of new sciences such as geostatistics is useful for fast and simple determination of so...

2015
Lukman Adewale Alli

This study was designed to assess the blood levels of cadmium and lead in some occupationally exposed individuals and compare the values with non-exposed individuals, with the aim of increasing the awareness of health risk caused by these heavy metals. A total of 120 subjects (64 occupationally exposed and 56 non-exposed subjects) with the age range of 15-40 years were studied in cross-sectiona...

2014
C.M. Taylor J. Golding A.M. Emond

The aim of this study was to evaluate the effect of prenatal exposure to lead, cadmium and mercury levels on the secondary sex ratio. Whole blood samples were collected from pregnant women enrolled in the Avon Longitudinal Study of Parents and Children (ALSPAC) study at a median gestational age of 11 weeks and were analyzed for lead, cadmium and mercury. Regression analysis was used to identify...

2010
Nina Bilandžić Marija Sedak Maja Đokić Branimir Šimić

Concentrations of cadmium, mercury and lead were analysed by atomic absorption spectrometry in the kidney and muscle of free-living wild boar (n = 169) from hunting grounds in seven counties of continental Croatia. Mean levels of metals (mg/kg) in muscle and kidney of boars ranged as follows: Cd: 0.005-0.016 and 0.866-4.58, Pb: 0.033-0.15 and 0.036-0.441, Hg: 0.004-0.012 and 0.04-0.152. In all ...

2010
Fangquan Xia Xin Zhang Changli Zhou Danzi Sun Yanmin Dong Zhen Liu

A new method was developed for simultaneous determination of copper, lead, and cadmium, based on their voltammetric response at a carbon paste electrode modified with hexagonal mesoporous silica (HMS) immobilized quercetin (HMS-Qu/CPE). Compared with quercetin modified carbon paste electrode (Qu/CPE) and quercetin ionic liquid modified carbon paste electrode (Qu-IL/CPE), the HMS-Qu/CPE exhibite...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003
Zhangjie Huang Guangyu Yang Qiufen Hu Jiayuan Yin

A new method for the simultaneous determination of lead, cadmium and mercury ions in microwave-digested foodstuffs by reversed-phase high-performance liquid chromatography combined with on-line enrichment technique has been developed. The foodstuff samples were digested by microwave digestion. The lead, cadmium and mercury ions can be precolumn derivatized with 5,10,15,20-tetrakis(3-aminophenyl...

2017
Hany M. Fahmy M. M. Sharaf M. Fahmy

Lead and cadmium are reported as heavy metals that induce blood disorders and immunological effects. This study was performed to determine the hematological toxicity and biochemical alterations in male albino rats as affected by the oral administration of a single dose equivalent to 1/20 from LD50 of lead acetate and cadmium chloride individually for 30 days, and evaluated the protective antiox...

Journal: :مدیریت خاک و تولید پایدار 0
عبدالامیر بستانی هیات علمی ندا صفاری انارکی دانشگاه شاهد حشمت امیدی دانشگاه شاهد

to evaluate the effect of application of municipal solid waste compost (mswc) on the accumulation of heavy metals of lead, nickel and cadmium in the soil under maize cultivation, a factorial experiment in base randomized complete block design (rcbd) with four different amounts of municipal solid waste compost (zero, 15, 30 and 60 tons ha-1) and time (compost applied once or twice) was performed...

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