scholarly journals Lichen Sebagai Bioindikator Pencemaran Udara Di Gerbang Kota (Gateway) Kota Jambi

2021 ◽  
Vol 4 (1) ◽  
pp. 6
Author(s):  
Febri Juita Anggraini ◽  
Ria Resti Oktapiani ◽  
Freddy Ilfan ◽  
Zuli Rodhiyah
Keyword(s):  
Air Pollution ◽  
Inductively Coupled Plasma ◽  
Traffic Density ◽  
Sampling Location ◽  
Spectroscopy Analysis ◽  
Inductively Coupled ◽  
Point Of Entry ◽  
Icp Ms ◽  
Measurement Results ◽  
Mass Spectroscopy Analysis

The gateway of city is the point of entry and exit for traffic activities, the high traffic activity that occurs causes air pollution, thereby reducing air quality. The use of lichen as a bioindicator is considered more efficient than using other indicator tools or machines. Purpose of this study was to determine the level of air pollution at the gateway of Jambi city using lichen as a bioindicator and to determine the concentration of Pb metal content in lichen. The research method used is exploration with roaming methods. The location of the research was carried out at the West Gate of Simpang Rimbo, the South Gate of Paal 10, and the East Gate of Aurduri 2. The Pb metal test in lichen was carried out using Inductively Coupled Plasma Mass Spectroscopy analysis method (ICP-MS). Based on the measurement results, the Aurduri 2 location is included in the location of low traffic density with an average number of 18,509 vehicles/ day. The location with moderate traffic density is Paal 10 with an average number of 31,941 vehicles/ day. The vehicle traffic density with the highest number was the Simpang Rimbo location with an average number of 45,041 vehicles/ day. The highest concentration of Pb in lichen was at the Aurduri 2 sampling location with a Pb metal value of 3.01 ppm and the lowest at the Simpang Rimbo location of 2.31 ppm.

scholarly journals The use of multi-criteria method in the process of threat assessment to the environment

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Elwira Zajusz-Zubek ◽  
Zygmunt Korban
Keyword(s):  
Particulate Matter ◽  
Inductively Coupled Plasma ◽  
Power Plants ◽  
Threat Assessment ◽  
Atmospheric Composition ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Measurement Results ◽  
Plasma Mass Spectrometry ◽  
Carcinogenic Metals

AbstractMeasurements of the content of trace elements, including toxic and carcinogenic metals, in various fractions of particulate matter PM are an important element of environmental monitoring and research involving their impact on human health. The article presents the measurement results of atmospheric composition of suspended dust (PM10), respirable fraction (PM2.5) and submicron particulate matter (PM1) collected with the Dekati PM10 cascade impactor. Samples were collected in the vicinity of four working power plants (from 28 May to 23 September 2014) and four coking plants (from 4 May to 28 August 2015) in Upper Silesia, Poland. The qualitative and quantitative analysis of the solutions: arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), antimony (Sb) and selenium (Se) obtained for individual fractions was performed by inductively coupled plasma mass spectrometry, using the apparatus ICP-MS. The research results were used to determine a synthetic assessment of the threat to the anthropogenic environment and for the preparation of the ranking of the measured points.

scholarly journals Provision conditions for increasing the reliability of trace analysis of toxic metals

2021 ◽  
Vol 100 (9) ◽  
pp. 1013-1018
Author(s):  
Marina V. Egorova ◽  
Alexander S. Rodionov ◽  
Julia J. Bogdanova
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Inductively Coupled Plasma ◽  
Fume Hood ◽  
Total Uncertainty ◽  
Inductively Coupled ◽  
Erroneous Decision ◽  
Icp Ms ◽  
Before And After ◽  
Plasma Mass Spectrometry

Introduction. Heavy metals are included in one of the significant groups of ecotoxicants. Determining heavy metals at low levels is one of the main problems in analytical chemistry, which depends on various factors. Ignoring the contribution of these factors to the total uncertainty can increase the probability of distortion of the results due to an erroneous decision on the compliance of the obtained data with a particular standard. The most significant influences include the purity of reagents, dishes, and air in laboratory rooms. Purpose of the work. Search for ways of reducing the listed influences provided that the expense of time, material and labour resources are minimized. Materials and methods. In the course of the work, many experiments were carried out, including the analysis of nitric acid for the content of metals before and after cleaning by distillation, the analysis of washes from new fluoroplastic laboratory glassware and glassware that had been cleaned by steaming, an assessment of the effect of air pollution in the laboratory room based on a study of calibration curves, which were constructed at the analysis of standard iron solutions prepared in the Clean Workplace and in a conventional fume hood. All measurements were performed by inductively coupled plasma mass spectrometry on Agilent 7800 ICP-MS mass spectrometer. Results. The efficiency of the proposed methods for eliminating interfering influences on the analysis has been experimentally proved. Conclusion. The technical and analytical problem, which consists of finding optimal conditions for preparation of reagents, glassware cleaning and decreasing the influence of laboratory air pollution, allows to increase reliability of the obtained results and prevent distortion of information about the observed degree of environmental pollution.

Single Particle Inductively Coupled Plasma Mass Spectrometry: Investigating Nonlinear Response Observed in Pulse Counting Mode and Extending the Linear Dynamic Range by Compensating for Dead Time Related Count Losses on a Microsecond Timescale

2019 ◽  
Author(s):  
Ingo Strenge ◽  
Carsten Engelhard
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Nonlinear Response ◽  
Dynamic Range ◽  
Dead Time ◽  
Inorganic Nanoparticles ◽  
Linear Dynamic Range ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

<p>The article demonstrates the importance of using a suitable approach to compensate for dead time relate count losses (a certain measurement artefact) whenever short, but potentially strong transient signals are to be analysed using inductively coupled plasma mass spectrometry (ICP-MS). Findings strongly support the theory that inadequate time resolution, and therefore insufficient compensation for these count losses, is one of the main reasons for size underestimation observed when analysing inorganic nanoparticles using ICP-MS, a topic still controversially discussed.</p>

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