the present study investigates the accumulation of vanadium, iron, and nickel in different depths of soil in collection sites of oil sludge, in masjed soleyman oil and gas exploitation company, located in choob sorkh region. to conduct the research, four sampling points have been selected at the mentioned site, with one sampling point chosen outside the site, as the clean area. soil sampling ha...

BACKGROUND/AIMS This study was performed in order to elucidate the effects of 7-nitroindazole (7-NI) and L-arginine on cognitive functions of rats in a three-panel runway task. METHODS 7-NI (2.5, 5, 10 mg/kg) and L-arginine (200 mg/kg) were injected intraperitoneally into male Wistar rats 30 min before the test. RESULTS 7-NI (5, 10 mg/kg) significantly increased the number of errors (pushes...

materials and methods a total of 40 different bread types such as barbari, sangak, lavash, and baguette produced in 124 bakery shops in rasht city were analyzed for some heavy metals (as, cd, pb, cr, ni, and co) by inductive coupled plasma (icp) instrument (icp-qes). results the mean content of the as, cd, and pb in different breads were respectively as follows: barbari, 0, 0.73, and 0.07; sang...

Heavy metal concentrations in the African giant snail Archachatina marginata (Swainson) from nine localities in southern Nigeria ranged from 0.77 to 7.51 mg kg Pb; 3.06–46.9 mg kg Fe; 0.03–0.40 mg kg Ni; 0.04–0.12 mg kg Cu; 0.71–4.51 mg kg Co; 0.67–1.27 mg kg Mn; 0.99–3.28 mg kg Cd; 0.08–0.22 mg kg Zn; Cr was below the limit of detection. Concentrations of Pb, Fe, Ni, Cu, Co, Cd and Zn in the s...

The distribution, migration and potential risk of heavy metals in water and soil environments, related to city water supply, were investigated. Heavy metal concentrations in waters from the Shima River water ranged from not detected (n.d.) to 749 μg L(-1) for Mn, n.d. to 151 μg L(-1) for Ni, 7.00 to 494 μg L(-1) for Zn, n.d. to 93.0 μg L(-1) for Cu and n.d. to 9860 μg L(-1) for Fe. The highest ...

This paper determines the controlling factors that influence the metals' behavior water-sediment interaction facies and distribution of elemental content ((75)As, (111)Cd, (59)Co, (52)Cr, (60)Ni, and (208)Pb) in water and sediment samples in order to assess the metal pollution status in the Langat River. A total of 90 water and sediment samples were collected simultaneously in triplicate at 30 ...

Background & Aims of the Study: Regarding to development of industry, soil contamination has become a serious problem in many countries, such as Iran. The aim of the present work was the illustration of the accumulation of potentially harmful trace elements and the potential risk which is posed to human health in surface soils of three industrial estates of Aran-o-Bidgol city, Isfah...

The present study investigates the accumulation of vanadium, iron, and nickel in different depths of soil in collection sites of oil sludge, in Masjed Soleyman Oil and Gas Exploitation Company, located in Choob Sorkh Region. To conduct the research, four sampling points have been selected at the mentioned site, with one sampling point chosen outside the site, as the clean area. Soil sampling ha...