scholarly journals DAF Planet/Flat-Top Building: Summary of Unexpected Airborne Radioactivity on Low-Volume Air Samples Due to Ventilation Lineup Changes

2021 ◽  
Author(s):  
Eloura Phelps
1970 ◽  
Vol 24 (3) ◽  
pp. 371-374 ◽  
Author(s):  
Jae Y. Hwang ◽  
Fredric J. Feldman

Trace metallic elements of Cr, Ni, Mn, and Cu in the atmospheric samples were determined by atomic absorption spectroscopy. Organic membranes coupled with a low volume air sampler were utilized to collect air samples since conventional glass fiber filters were found to be unsuitable for this purpose. A new sample preparation technique and flame conditions were discussed to improve the accuracy of the analysis.


2010 ◽  
Vol 2 (3) ◽  
pp. 231 ◽  
Author(s):  
Juana Mari Delgado-Saborit ◽  
Noel Aquilina ◽  
Stephen Baker ◽  
Stuart Harrad ◽  
Claire Meddings ◽  
...  

Author(s):  
Mariana Amaral Dias ◽  
Josafa Magno dos Santos ◽  
Wanderlei Antonio Pignati ◽  
Erika Pereira Felix

Two gas phase sampling systems were validated and compared to each other. The levels of pesticides ranged between 192 and 1731 pg m−3. Human exposure to pesticides was estimated using the gas phase concentrations.


Author(s):  
Peter K. Mueller ◽  
Glenn R. Smith ◽  
Leslie M Carpenter ◽  
Ronald L. Stanley

At the present time the primary objective of the electron microscopy group of the Air and Industrial Hygiene Laboratory is the development of a method suitable for use in establishing an air quality standard for asbestos in ambient air and for use in its surveillance. The main concept and thrust of our approach for the development of this method is to obtain a true picture of fiber occurrence as a function of particle size and asbestos type utilizing light and electron microscopy.We have now available an electron micrographic atlas of all asbestos types including selected area diffraction patterns and examples of fibers isolated from air samples. Several alternative approaches for measuring asbestos in ambient air have been developed and/or evaluated. Our experiences in this regard will be described. The most promising method involves: 1) taking air samples on cellulose ester membrane filters with a nominal pore size of 0.8 micron; 2) ashing in a low temperature oxygen plasma for several hours;


2006 ◽  
Vol 175 (4S) ◽  
pp. 154-154
Author(s):  
Michael Alschibaja ◽  
Joerg Massmann ◽  
Armin Funk ◽  
Heiner Van Randenborgh ◽  
Rudolf Hartung ◽  
...  

2019 ◽  
Author(s):  
M Maida ◽  
G Morreale ◽  
E Sinagra ◽  
M Manganaro ◽  
D Schillaci ◽  
...  

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