scholarly journals Comparative Cytotoxicity Study of PM2.5 and TSP Collected from Urban Areas

Toxics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 167
Author(s):  
Ilseob Shim ◽  
Woong Kim ◽  
Haewon Kim ◽  
Yeon-Mi Lim ◽  
Hyejung Shin ◽  
...  
Keyword(s):  
Urban Areas ◽  
Inductively Coupled Plasma ◽  
A549 Cells ◽  
Chemical Compositions ◽  
Related Factor ◽  
Airborne Pollutants ◽  
Alveolar Epithelial ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
High Concentrations

Ambient particulate matter 2.5 (PM2.5) and total suspended particles (TSPs) are common airborne pollutants that cause respiratory and cardiovascular diseases. We investigated the differences of cytotoxicity and mechanism between PM2.5 and TSP activity in human alveolar epithelial A549 cells. Atmospheric samples from the central district of Seoul were collected and their chemical compositions were analyzed by inductively-coupled plasma mass spectrometry and ion chromatography. PM2.5 and TSP contained high concentrations of heavy metals (Cu, Fe, Zn, and Pb). The most abundant ions in PM2.5 were SO42−, NH4+, and NO3−. A549 cells were exposed to PM2.5 and TSP (25–200 µg/mL) for 24 h. TSP was more cytotoxic than PM2.5 per unit mass. PM2.5 induced oxidative stress, as evidenced by increased levels of a glutamate-cysteine ligase modifier, whereas low-concentration TSP increased hemeoxygenase-1 levels. PM2.5 and TSP did not affect c-Jun N-terminal kinase expression. The levels of nuclear factor erythroid 2-related factor 2 (Nrf2) in PM2.5- and TSP-treated cells decreased significantly in the cytosol and increased in the nucleus. Thus, Nrf2 may be a key transcription factor for detoxifying environmental airborne particles in A549 cells. TSP and PM2.5 could activate the protective Kelch-like ECH-associated protein 1/Nrf2 pathway in A549 cells.

scholarly journals Determination of Essential and Toxic Elements in Cattle Blood: Serum vs Plasma

Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 465 ◽  
Author(s):  
Diego Luna ◽  
Marta López-Alonso ◽  
Yolanda Cedeño ◽  
Lucas Rigueira ◽  
Víctor Pereira ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Toxic Elements ◽  
Serum Samples ◽  
Element Analysis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Essential And Toxic Elements ◽  
High Concentrations

This study was designed to evaluate the influence of type of blood sample (serum or plasma) on essential and toxic element analysis in cattle. Paired plasma and serum samples (n = 20) were acid digested, and the concentrations of As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, Li, Mg, Mn. Mo, Ni, P, Pb, Sb, Se, Sr and Zn were determined by inductively coupled plasma mass spectrometry (ICP-MS). The study findings indicate that plasma and serum samples appear suitable and interchangeable for the determination of most of the essential and toxic elements in blood in cattle. The only exceptions are Cu and Se, the concentrations of which were significantly lower (40.9 and 29.9% respectively) in serum than in plasma. Some of the Cu in blood samples from bovine ruminants is known to be sequestered during clotting. However, further research on Se in ruminants and other animal species is warranted. Finally, the significantly higher Mn (9.9%) concentrations in serum than in plasma may have been caused by haemolysis of some samples. Special attention should be paid to preventing haemolysis of samples during collection and processing, in order to prevent overestimation of elements present at high concentrations inside erythrocytes (i.e., Fe, Mn and Zn).

scholarly journals Seasonal Variability in the Composition of Particulate Matter and the Microclimate in Cultural Heritage Areas

Atmosphere ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 595 ◽  
Author(s):  
Radulescu ◽  
Stihi ◽  
Ion ◽  
Dulama ◽  
Stanescu ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Inductively Coupled Plasma ◽  
Chemical Compositions ◽  
Potential Health ◽  
Museum Exhibits ◽  
Inductively Coupled ◽  
Chemical Measurements ◽  
Low Concentrations ◽  
High Concentrations ◽  
Indoor And Outdoor

This study is the first attempt to decipher the effect of particulate matter (PM) composition on people’s health and on historic sites, in correlation with the daily and seasonal microclimate monitoring of the indoor and outdoor areas of the Roman Mosaic Edifice museum (the maritime port of Constanta, Romania). More specifically, the increase of metal concentrations in particulate matter during the summer of 2018 and spring of 2019 in the museum under investigation could possibly be associated with the microclimates of both seasons, with coastal factors, as well as with the anthropic activities specific to the port of Constanta. FTIR and inductively coupled plasma mass spectroscopy (ICP-MS) techniques, used for the investigation of PM2.5–10 samples, revealed high concentrations of Fe, Al-rich, and soluble particles inside the investigated museum area. In this respect, the chemical measurements of the PM2.5–10 masses highlighted high concentrations of heavy metals (i.e., Al, Fe, Zn, Mn, and Pb) and low concentrations of trace metals (i.e., Cr, Ni, Cu, and Cd). Statistical analysis showed that the chemical compositions of the particulate matter in the indoor and outdoor areas of the Roman Mosaic Edifice were influenced by microclimatic conditions, mainly temperature and relative humidity (RH). A potential health risk for tourists is the thermal and humid conditions, alongside the toxic components of the particulate matter. This research seeks to provide solutions for improving the environmental conditions inside the Roman Mosaic Edifice and to offer useful suggestions concerning health promotion and the protection of museum exhibits against possible future deterioration.

Trace Elements of Precipitation in the Shigatse Region, Southern Tibetan Plateau

2012 ◽  
Vol 518-523 ◽  
pp. 1652-1656 ◽  
Author(s):  
Jun Qing Liu ◽  
Yong Jie Yang ◽  
Yi’an Di ◽  
Jun Yang ◽  
Wei Wei Huang ◽  
...  
Keyword(s):  
Trace Elements ◽  
Tibetan Plateau ◽  
Urban Areas ◽  
Inductively Coupled Plasma ◽  
Enrichment Factors ◽  
Inductively Coupled ◽  
Sources Of Pollution ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Southern Tibetan Plateau

In order to investigate trace elements of precipitation on Tibetan Plateau, a total of 34 precipitation samples have been collected from individual precipitation events at the Shigatse Meteorological Station located in the south Tibetan Plateau in 2008. All samples were analyzed for 12 elements (V, Cr, Mn, Fe, Co, Ni, Cu, As, Se, Ag, Ba and Pb) by using inductively coupled plasma mass spectrometry (ICP-MS). The result showed that the average concentrations of V, Cr, Mn, Fe, Co, Ni, Cu, As, Se, Ag, Ba and Pb were 0.22 μg L-1, 0.17 μg L-1, 2.47 μg L-1, 16.52 μg L-1, 0.07 μg L-1, 1.04 μg L-1, 2.52 μg L-1, 0.29 μg L-1, 0.09 μg L-1, 0.04 μg L-1, 31.54 μg L-1 and 0.10μg L-1, respectively. The concentrations of elements were generally comparable to other background sites, and much lower than urban areas. The enrichment factors indicated that coal combustion along with vehicle and industry emissions may be the main sources of pollution elements.

scholarly journals Seed Mineral Composition and Protein Content of Faba Beans (Vicia faba L.) with Contrasting Tannin Contents

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 511 ◽  
Author(s):  
Hamid Khazaei ◽  
Albert Vandenberg
Keyword(s):  
Protein Content ◽  
Inductively Coupled Plasma ◽  
Near Infrared ◽  
Nir Spectroscopy ◽  
Mineral Elements ◽  
Inductively Coupled ◽  
Faba Beans ◽  
Plasma Mass Spectrometry ◽  
High Concentrations ◽  
Mineral Concentrations

Two-thirds of the world’s population are at risk of deficiency in one or more essential mineral elements. The high concentrations of essential mineral elements in pulse seeds are fundamentally important to human and animal nutrition. In this study, seeds of 25 genotypes of faba bean (12 low-tannin and 13 normal-tannin genotypes) were evaluated for mineral nutrients and protein content in three locations in Western Canada during 2016–2017. Seed mineral concentrations were examined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and the protein content was determined by Near-Infrared (NIR) spectroscopy. Location and year (site-year) effects were significant for all studied minerals, with less effect for calcium (Ca) and protein content. Genotype by environment interactions were found to be small for magnesium (Mg), cobalt (Co), Ca, zinc (Zn), and protein content. Higher seed concentrations of Ca, manganese (Mn), Mg, and cadmium (Cd) were observed for low-tannin genotypes compared to tannin-containing genotypes. The protein content was 1.9% higher in low-tannin compared to tannin-containing genotypes. The high estimated heritability for concentrations of seed Mg, Ca, Mn, potassium (K), sulphur (S), and protein content in this species suggests that genetic improvement is possible for mineral elements.

scholarly journals Where do elements bind within the otoliths of fish?

2016 ◽  
Vol 67 (7) ◽  
pp. 1072 ◽  
Author(s):  
Christopher Izzo ◽  
Zoë A. Doubleday ◽  
Bronwyn M. Gillanders
Keyword(s):  
Inductively Coupled Plasma ◽  
Relative Proportion ◽  
Protein Component ◽  
Mineral Component ◽  
Fish Physiology ◽  
Inductively Coupled ◽  
Mineral Components ◽  
Plasma Mass Spectrometry ◽  
Component Element ◽  
High Concentrations

Otolith element analyses are used extensively to reconstruct environmental histories of fish based on the assumption that elements substitute for calcium within the CaCO3 otolith structure. However, elements may also be incorporated within the protein component of the otolith in addition to the direct substitution for calcium in the mineral component, and this could introduce errors in environmental reconstructions. The aim of the present study was to determine whether elements were incorporated into the protein or mineral components of otoliths and the relative proportion of each element in each component. Element concentrations from whole ground otoliths and the isolated protein component were quantified using solution inductively coupled plasma mass spectrometry (ICP-MS). Of the 12 elements investigated, most were found in both the proteinaceous and mineral components, but always in greater concentrations in the latter. Elements considered ‘non-essential’ to fish physiology with Ca-like properties (i.e. alkaline metals) were present in the mineral component in relatively high concentrations. Elements essential to fish physiology with smaller atomic radii than Ca (i.e. transition metals) were distributed throughout the protein and mineral components of the otolith. These findings enhance our understanding of element incorporation in the otolith and, ultimately, improve interpretations of otolith-based environmental reconstructions.

scholarly journals TephraKam: Geochemical database of glass compositions in tephra and welded tuffs from the Kamchatka volcanic arc (NW Pacific)

2019 ◽  
Author(s):  
Maxim V. Portnyagin ◽  
Vera V. Ponomareva ◽  
Egor A. Zelenin ◽  
Lilia I. Bazanova ◽  
Maria M. Pevzner ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Volcanic Glass ◽  
Volcanic Eruptions ◽  
Chemical Compositions ◽  
Volcanic Arc ◽  
Inductively Coupled ◽  
Geochemical Variations ◽  
Plasma Mass Spectrometry ◽  
Tephra Layers ◽  
Data Files

Abstract. Tephra layers produced by volcanic eruptions are widely used for correlation and dating of various deposits and landforms, for synchronization of disparate paleoenvironmental archives, and for reconstruction of magma origin. Here we present our original database TephraKam, which includes chemical compositions of volcanic glass in tephra and welded tuffs from the Kamchatka volcanic arc. The database contains 7049 major element analyses obtained by electron microprobe and 738 trace element analyses obtained by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) on 487 samples collected in proximity of their volcanic sources in all volcanic zones in Kamchatka. The samples characterize about 300 explosive eruptions, which occurred in Kamchatka from the Pliocene until historic times. Precise or estimated ages for all samples are based on published 39Ar/40Ar dates of rocks and 14C dates of host sediments, statistical age modelling and geologic relationships with dated units. All data in TephraKam is supported by information about source volcanoes and analytical details. Using the data, we present an overview of geochemical variations of Kamchatka volcanic glasses and discuss application of this data for precise identification of tephra layers, their source volcanoes, temporal and spatial geochemical variations of pyroclastic rocks in Kamchatka. The data files described in this paper are available on ResearchGate at https://doi.org/10.13140/RG.2.2.23627.13606 (Portnyagin et al., 2019).

scholarly journals Heavy metal elements in toiletries analyzed by INAA, ICP-MS and SEM-EDX

2011 ◽  
Vol 1 (1) ◽  
pp. 393-398
Author(s):  
E. Furuta ◽  
H. Minowa ◽  
K. Tagami ◽  
Y. Okada ◽  
H. Nakahara
Keyword(s):  
Heavy Metal ◽  
Detection Limit ◽  
Inductively Coupled Plasma ◽  
Particle Sizes ◽  
Metal Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Heavy Metal Elements ◽  
High Concentrations

AbstractRecently, many toiletries claiming inclusion of platinum (Pt), silver (Ag) and gold (Au) as additives are sold in ordinary cosmetics shops. However, their concentrations are not clearly indicated. In the present work, these toiletries were analyzed for heavy metal elements by instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS), and the particle sizes were observed by scanning electron microscope (SEM) and the constitutions of the small particles were analyzed by energy dispersive X-ray spectroscopy (EDX). The concentrations of Pt in the toiletries observed were from 1 to 80 ppm. The lower detection limit of Pt by INAA was about 1 ppm because of the presence of sodium in high concentrations for those samples. Consequently, some toiletries which should have had Pt according to the manufactures were found not to contain Pt probably because it was less than the detection limit. On the other hand, there were a few toiletries that were found to contain Ag although the addition of Ag was not mentioned by the manufactures. It is considered that these non-indicated Ag were included as impurities of the added Au. The concentrations of the non-indicated Ag were even higher than those of the indicated Ag. A very small amount of Sr, which was nominated in the negative list of Japan, was also detected in 2 out of 5 kinds of toiletries analyzed by ICP-MS.

ARSENIC CONTAMINATION OF DOMESTIC WATER IN DAKNONG PROVINCE, VIETNAM: SITUATION AND HUMAN HEALTH CONCERNS

2020 ◽  
pp. 124-130
Author(s):  
Viet
Keyword(s):  
Ground Water ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Hazard Quotient ◽  
Domestic Water ◽  
Treated Water ◽  
Inductively Coupled ◽  
Treatment Measures ◽  
Plasma Mass Spectrometry ◽  
High Concentrations

Arsenic (As) is listed as a human carcinogen, and As groundwater contamination is a significant health problem in many regions of the world. In the past few years, high concentrations of As in ground water have been discovered in some areas in Vietnam. In 2017, a report of Preventive Medicine Center of Daknong showed that the high As concentrations were found in both treated and untreated ground water samples in some areas belonged to this province. In this study, a total of 651 water samples (83 treated water, 114 surface water, and 455 ground water samples) and 100 duplicate samples were collected in Daknong. All samples were measured pH before preservation by 2% HNO3 acid until analyzing As by inductively coupled plasma mass spectrometry. According to the results, the high As concentrations, which exceeded the Vietnamese drinking water and domestic water limit for As (10 µg/L) were found in 19 samples. Moreover, one treated water sample from a water supply center presented a high As concentration (greater than 10 µg/L). Three hazard quotient values presented greater than 1 suggested that the water from those wells should not be used for drinking without proper treatment measures.

scholarly journals Extreme enrichment of selenium in the Apliki Cyprus-type VMS deposit, Troodos, Cyprus

2018 ◽  
Vol 82 (3) ◽  
pp. 697-724 ◽  
Author(s):  
Andrew J. Martin ◽  
Iain McDonald ◽  
Christopher J. MacLeod ◽  
Hazel M. Prichard ◽  
Katie McFall
Keyword(s):  
Late Stage ◽  
Inductively Coupled Plasma ◽  
Massive Sulfide ◽  
Stage Iii ◽  
Geochemical Data ◽  
Troodos Ophiolite ◽  
Inductively Coupled ◽  
Significant Enrichment ◽  
Plasma Mass Spectrometry ◽  
High Concentrations

ABSTRACTThe Troodos ophiolite Cyprus hosts the type locality for Cyprus-type, mafic volcanogenic massive sulfide (VMS) deposits. Regional soil geochemical data for Troodos are highly variable with the Solea graben, one of three regional graben structures on Cyprus, showing enrichment in Te and Se. Of the three VMS sampled within the Solea graben, Apliki exhibits the most significant enrichment in Se. Samples from the South Apliki Breccia Zone; a zone of hematite-rich breccia containing euhedral pyrite and chalcopyrite, contain up to 4953 and 3956 ppm Se in pyrite and chalcopyrite, respectively. Four paragenetic stages are identified at Apliki and different generations of pyrite are distinguishable using trace-element chemistry analysed via laser ablation inductively coupled plasma mass spectrometry. Results indicate stage I pyrite formed under reduced conditions at high temperatures >280°C and contains 182 ppm (n = 22 σ = 253) Se. Late stage III pyrite which is euhedral and overprints chalcopyrite and hematite is enriched in Se (averaging 1862 ppm; n = 23 σ = 1394). Sulfide dissolution and hematite formation displaced large amounts of Se as hematite cannot accommodate high concentrations of Se in its crystal structure. The mechanisms proposed to explain the pronounced change in redox are twofold. Fault movement leading to localized seawater ingress coupled with a decreasing magmatic flux that generated locally oxidizing conditions and promoted sulfide dissolution. A Se/S ratio of 9280 indicates a probable magmatic component for late stage III pyrite, which is suggested as a mechanism explaining the transition from oxidizing back to reduced conditions. This study highlights the significance of changes in redox which promote sulfide dissolution, mobilization and enrichment of Se.

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