Nephelometer PM 2.5

Contact: Mark Gibson ( )

Original plots and converted images can be found in the pdf and png folders, respectively.

Text files with more information on each image can be found in txt. That information is also (usually) reproduced below this directory listing.

[ICO]NameLast modifiedSize

[DIR]Parent Directory  -
[DIR]pdf/07-Sep-2010 14:17 -
[DIR]png/07-Sep-2010 14:17 -
[DIR]txt/07-Sep-2010 12:31 -


    PM2.5 mass concentration data presented below is obtained using a PDR-1500 light-scattering photometer (nephelometer). The instrument is positioned on the roof of the Dunn building on Dalhousie campus. PM2.5 data is represented in 1-minute intervals, along with relative humidity and pressure data. Plots of PM2.5 are presented in 1-hour intervals, with sampling periods indicated in the file names.