scholarly journals Measuring low concentrations of asbestos fibers in environmental air samples from asbestos roofed houses

2003 ◽  
Author(s):  
K.A. Renton ◽  
H.A. Garton
Keyword(s):  
Air Samples ◽  
Asbestos Fibers ◽  
Low Concentrations ◽  
Environmental Air

Design of a New Counting Cell for Monitoring85Kr in Environmental Air Samples

1986 ◽  
Vol 72 (2) ◽  
pp. 212-217 ◽  
Author(s):  
Jiunn-Guang Lo ◽  
Dar-Yeong Chen ◽  
Jen-Zen Wang
Keyword(s):  
Air Samples ◽  
Environmental Air ◽  
Counting Cell

The Automatic Counting of Asbestos Fibers in Air Samples

1978 ◽  
Vol C-27 (3) ◽  
pp. 258-261 ◽  
Author(s):  
Pavlidis ◽  
Steiglitz
Keyword(s):  
Air Samples ◽  
Asbestos Fibers ◽  
Automatic Counting

The measurement of low concentrations of Kr-85 in atmospheric air samples

1994 ◽  
Vol 43-45 (1) ◽  
pp. 725-730 ◽  
Author(s):  
Ludmila Wilhelmová ◽  
Milan Tomášek ◽  
Karel Stukheil
Keyword(s):  
Air Samples ◽  
Atmospheric Air ◽  
Low Concentrations

scholarly journals An improved method for the analysis of volatile polyfluorinated alkyl substances in environmental air samples

2007 ◽  
Vol 387 (3) ◽  
pp. 965-975 ◽  
Author(s):  
Annika Jahnke ◽  
Lutz Ahrens ◽  
Ralf Ebinghaus ◽  
Urs Berger ◽  
Jonathan L. Barber ◽  
...  
Keyword(s):  
Improved Method ◽  
Air Samples ◽  
Environmental Air

POTENTIAL SOURCES OF AIR POLLUTION BY INDUSTRIAL FIBERS

2021 ◽  
Author(s):  
I.M. Tskhomaria ◽  
◽  
E.V. Kovalevskiy ◽  
Keyword(s):  
Air Pollution ◽  
Modern World ◽  
Chrysotile Asbestos ◽  
Air Samples ◽  
Mineral Fibers ◽  
Asbestos Fibers ◽  
Potential Possibility ◽  
The Russian Federation ◽  
Construction Purpose ◽  
High Chance

Abstract: Resume. Currently almost no attention is paid to the potential possibility of air pollution of premises for various purposes by industrial fibers (natural (asbestos) and man-made mineral fibers) in the Russian Federation while there is increasing use of materials containing such fibers in industrial and civil construction. Purpose. To conduct a survey of premises for various purposes to identify materials containing industrial fibers and assess the potential possibility of releasing fibers from them using research methods adopted in modern world practice. Materials and methods. A visual and instrumental survey of premises was carried out; 169 materials samples, 57 dust samples and 45 air samples were sampled and analyzed. Results. The numerical fiber concentrations in air samples did not exceed the standarts for working area air (0.2 f/ml for man-made mineral fibers (MMMF) and 0.01 f/ml for asbestos fibers), used in modern world practice. MMMF were detected in half of the dust samples, chrysotile asbestos fibers (CAF) were detected in 3 dust samples, MMMF together with CAF were detected in 9 dust samples. CAF were presented in 85 of 169 materials samples, MMVF were presented in 34 materials samples, organic fiber were presented in 18 materials samples, no fibers were presented in 32 materials samples. When using the algorithm for estimating the probability of fiber releasing, 43 materials containing CAF had a very low chance of fiber releasing, 18 – low, 21 – medium, and 3 – high chance, and 15 materials containing MMVF had a very low chance of fiber releasing, 11 – low, 7 – medium, 1 – high. Conclusion. Materials containing industrial fibers are widely used in premises for various purposes. Visual and instrumental survey allows detecting such materials and assessing their condition for the development of measures set to control working area air pollution. The detection of fibers in dust samples makes it possible to establish the presence of sources of air pollution, as well as to identify them in most cases.

The first detection ofToxoplasma gondiiDNA in environmental air samples using gelatine filters, real-time PCR and loop-mediated isothermal (LAMP) assays: qualitative and quantitative analysis

Parasitology ◽  
2017 ◽  
Vol 144 (13) ◽  
pp. 1791-1801 ◽  
Author(s):  
ANNA LASS ◽  
BEATA SZOSTAKOWSKA ◽  
KRZYSZTOF KORZENIEWSKI ◽  
PANAGIOTIS KARANIS
Keyword(s):  
Toxoplasma Gondii ◽  
Real Time ◽  
Real Time Pcr ◽  
Microscopic Analysis ◽  
Detection Methods ◽  
Type I ◽  
Air Samples ◽  
Two Samples ◽  
Environmental Air ◽  
Tract Infections

SUMMARYToxoplasma gondiiinfections are acquired through the ingestion of oocysts present in the environment. However, there is no data about their occurrence in the air or about airborne transmission of these infections. In the present paper, we report on the identification ofT. gondiiusing rapid molecular detection methods, supported by microscopic analysis, in environmental air samples. A total of 71 samples were collected, using gelatine filters, from kitchen gardens, recreational areas and sandpits located in northern and north-eastern Poland. Material recovered from the filters was analysed using real-time PCR and loop-mediated isothermal assays targeting theT. gondiiB1 gene.Toxoplasma gondiiDNA was found in two samples, as confirmed by both molecular assays. Genotyping at the SAG2 locus showedToxoplasmaSAG2 type I. Moreover, the presence ofT. gondiioocysts was confirmed in one of the positive samples with the use of microscopy. The results showed thatT. gondiimay be present in environmental air samples and that respiratory tract infections may play a role in the high prevalence of toxoplasmosis in humans and animals. To the best of our knowledge, this is the first epidemiological evidence that oro-fecal and foodborne toxoplasmosis may be traceable to an airborne respiratory origin and that this may represent a new, previously unknown transmission route for this disease.

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