PM10 Definitions
This is great. 194 definitions of PM10. Now that can cause some confusion.
PM10 Definitions
This is great. 194 definitions of PM10. Now that can cause some confusion.
Extract from http://www.aerosols.eas.gatech.edu/EAS%20Graduate%20Lab/Class%20Notes%20Aerosols%20and%20Size%20Distrn.pdf
“PM10: The mass concentration of particles smaller than 10 µm. In practice, PM10 samplers do not
provide perfectly sharp cuts at 10 µm. Instead, size-dependent collection efficiencies typically decrease
from 100 percent at ~ 1.5 µm to 0 percent at ~15 µm, and are equal to 50 percent at 10 µm.”
PM10 Particle Size Discussion – Interesting Link
http://diamondenv.wordpress.com/2010/12/10/particulate-pollution-pm10-and-pm2-5/
Great article – What are the impacts of outdoor particulate matter
http://www.ijehse.com/content/12/1/27/abstract – Exposure and health impacts of outdoor particulate matter in two urban and industrialized area of Tabriz, Iran
A great article on www.health24.com – http://www.health24.com/Lifestyle/Environmental-health/21st-century-life/Mining-disasters-and-rescues-20120721
Analysing for various chemicals and elements in the air using Drager
Q. What would be the recommendation for doing the following: (Conduct once off sampling of CO, Lead, Manganese, Mercury, Arsenic, Chromium, Nickel, Benzene, Formaldehyde, Styrene, Toluene and Tetrachloride).
A. That is quite a list. As it is from an air quality report, I assume that they want it measured in the air at one or more locations. Units of measurement mg/m3 or parts per million in the air (ppm)
None of these can be determined from the fallout dust samples. It is possible to do elemental analysis on the dust to determine the Lead, Manganese, Mercury, Arsenic, Chromium, and Nickel concentrations but this will not meet the requirements or recommendations of the report as the results are given in parts per million or ppm or mass concentration, mg/kg.
My recommendation would be to research how to measure the airborne quantity of each of those chemicals and elements and then do the tests internally following the procedures.
Drager would be my starting point – http://www.draeger.com
Some of the test could be done using tubes from Drager. The tests that cannot be done in this way would then be done in other ways.
From my experience Drager have a list of chemicals that can be tested for using their pump, and the results are very useful to provide an indication of elevated levels if there are any.
By searching google for drager detection selection you will be able to download the pdf that contains the detection selection that Drager offers and if you Google Drager tube handbook then you will be able to download the handbook if required.
Please contact us regarding any queries.
DustWatch CC – Precipitant Dust Monitoring
082 875 0209 or 021 785 6999 (Chris)
083 308 4764 (Gerry)
0866 181 421 (Fax)
www.dustwatch.com
http://www.totalimpact.co.za/index.php/blog/50-new-dust-control-regulations