scholarly journals MINERALOGICAL AND CHEMICAL CHARACTERIZATION OF SEDIMENTS FROM IMPERVIOUS URBAN STREETS

2017 ◽  
Vol 10 (2) ◽  
pp. 194-200
Author(s):  
Carlos Roberto Juchen ◽  
Cristiano Poleto ◽  
Marcio Antonio Vilas Boas ◽  
Rodrigo Trevisani Juchen
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Average Particle Size ◽  
Chemical Characterization ◽  
Optical Emission ◽  
Mineralogical Composition ◽  
Anthropogenic Sources ◽  
Emission Spectrometry ◽  
Average Particle ◽  
Fine Sediments

This study aimed to determine the granulometric and mineralogical composition and the contents of trace elements Cr, Ni and Pb in sediments collected in impermeable streets located in the urban perimeter of Toledo PR, Brazil. The mineralogical analyses were performed by a diffractometer, the granulometric by integrated sieving methods and laser diffraction, trace elements in sediment quartered fractions by optical emission spectrometry with inductively coupled plasma (ICP-OES). It was concluded that the sediments with an average granulometric greater than 0.09 mm and finer fractions represented by the clay. The mineralogy identified ferruginous substances characteristics of Distroferric Red Latosol - DRL with high presence of quartz and diopside. Statistically it was shown that the concentrations of the trace elements in sediment samples had a significant enrichment for Chromium and Nickel in the central area’s streets and the Lead in lower concentrations in the streets of the periphery areas. The sediments have an average particle size with diameters greater than 0.09 mm, represented by sand, and the fine sediments represent 2 to 6% of samples. The software indicated that the sediments are from different anthropogenic sources. The diffractograms show peaks for quartz and diopside. The enrichment for trace elements was significant for chromium and nickel on the downtown area streets.

scholarly journals MINERALOGICAL AND CHEMICAL CHARACTERIZATION OF SEDIMENTS FROM IMPERVIOUS URBAN STREETS

2017 ◽  
Vol 10 (2) ◽  
pp. 194-200
Author(s):  
Carlos Roberto Juchen ◽  
Cristiano Poleto ◽  
Marcio Antonio Vilas Boas ◽  
Rodrigo Trevisani Juchen
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Average Particle Size ◽  
Chemical Characterization ◽  
Optical Emission ◽  
Mineralogical Composition ◽  
Anthropogenic Sources ◽  
Emission Spectrometry ◽  
Average Particle ◽  
Fine Sediments

This study aimed to determine the granulometric and mineralogical composition and the contents of trace elements Cr, Ni and Pb in sediments collected in impermeable streets located in the urban perimeter of Toledo PR, Brazil. The mineralogical analyses were performed by a diffractometer, the granulometric by integrated sieving methods and laser diffraction, trace elements in sediment quartered fractions by optical emission spectrometry with inductively coupled plasma (ICP-OES). It was concluded that the sediments with an average granulometric greater than 0.09 mm and finer fractions represented by the clay. The mineralogy identified ferruginous substances characteristics of Distroferric Red Latosol - DRL with high presence of quartz and diopside. Statistically it was shown that the concentrations of the trace elements in sediment samples had a significant enrichment for Chromium and Nickel in the central area’s streets and the Lead in lower concentrations in the streets of the periphery areas. The sediments have an average particle size with diameters greater than 0.09 mm, represented by sand, and the fine sediments represent 2 to 6% of samples. The software indicated that the sediments are from different anthropogenic sources. The diffractograms show peaks for quartz and diopside. The enrichment for trace elements was significant for chromium and nickel on the downtown area streets.

scholarly journals Features of quantity elements and essential trace elements concentrations in saliva of young athletes

2015 ◽  
Vol 96 (2) ◽  
pp. 238-241 ◽  
Author(s):  
N A Troegubova ◽  
N V Rylova
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Control Group ◽  
Young Athletes ◽  
Inductively Coupled ◽  
Essential Trace Elements ◽  
The Republic ◽  
Potassium Magnesium

Aim. To explore the concentrations of quantity elements and essential trace elements (calcium, potassium, magnesium, zinc, iron, chromium, and selenium) in saliva of young athletes.Methods. The study included 111 children aged 12-17 years who were allocated to three groups. The first group included 28 schoolchildren, the second group - 36 adolescents (students of the «Kasatka» swimming sports school) and the third group - 47 athletes (students of the Republican specialized youth sports school of Olympic reserve for grass hockey «Dynamo» of the Republic of Tatarstan). Mass spectrometry with inductively coupled plasma was performed on «Elan-9000» mass spectrometer; optical emission spectrometry with inductively coupled plasma was performed on «Optima 2000DV» optical emission spectrometer.Results. In young athletes of cyclic sports, there was a significant reduction of salivary calcium (by 1.16 times) and potassium (by 1.8 times) levels compared to control group. Salivary levels of magnesium, zinc, chromium and selenium were significantly increased in athletes.Conclusion. Revealed differences of quantity elements and essential trace elements salivary concentrations reflect the features of their metabolism at high physical and emotional stress.

scholarly journals Trace element contents in marls of the Ptolemais - Amynteon lignite basin, Western Macedonia, Greece

2001 ◽  
Vol 34 (3) ◽  
pp. 1115 ◽  
Author(s):  
Χ. ΣΑΧΑΝΙΔΗΣ ◽  
Α. ΓΕΩΡΓΑΚΟΠΟΥΛΟΣ ◽  
Α. ΦΙΛΙΠΠΙΔΗΣ ◽  
Α. ΚΑΣΩΛΗ-ΦΟΥΡΝΑΡΑΚΗ
Keyword(s):  
Trace Elements ◽  
Vertical Distribution ◽  
Inductively Coupled Plasma ◽  
Environmental Concern ◽  
Statistical Processing ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Northern Greece ◽  
Mean Values ◽  
Inductively Coupled

Sixty-five marl samples were collected from the outcrops of six active and one abandoned mine of Ptolemais-Amynteon Lignite Center, Northern Greece. Core samples were also collected from the West Field, a Neogene lignite deposit located at the same area. The concentrations of 39 trace elements were determined using Instrumental Neutron Activation analysis (INAA) and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Carbon and sulfur contents and the loss on ignition of the samples were also determined. The classification of the trace elements concentrations in each mine and their statistical processing allows determining the horizontal and vertical distribution in the coal deposits and in the entire basin. Regarding the vertical distribution of elements and geochemical groups, significant variations of the concentrations in both the different marl seams and the upper, intermediate and lower lignite seams were determined. The mining, processing, transportation, storage and utilization of marls release, among others, some amounts of trace elements into the environment. However, the low concentrations of all trace elements, except Pb in the South field, compared to the upper mean values of world rocks Crust (W.C-U.M.V) (enrichement factor <0.8) is of great environmental concern and prove the non hazardous role of the marl during mining, beneficiation and usage.

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