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Measurements and Instruments

Various instruments and methodologies are used to conduct the aerosol measurements:

The following table provides a summary of all aerosol measurements and instruments at the four Canadian sites.

Aerosol samples for chemical analyses are collected onto various filter matrices.

Site &
Size-cut
Light
Absorption
Light
Scattering
EC/OC
Conc. &
isotope
Inorganics and Metal
Speciation
Particle
# & size
Alert
1 & 10 µm
1-w PSAP
3-w PSAP
TSI 3-w
Nephelometer
(with backsplatter)
Quartz
filter-pack

*14-days
integrated
high-volume sampler-
Whatman 41D

*seven days
integrated; TSP
CPC-3010
DMA
BERMS
2.5 µm

1.0 µm
(Sept. 2009)
1-w PSAPEcotech
1-w Nephelometer
2005-Aug 2008
TSI 3-w Nephelometer
from Sept 2008
Quartz
filter-pack

*seven days
integrated
Quartz filter-pack –

*seven days
integrated
None
Whistler
2.5 µm
1-w PSAPAlquihst-
3-w Nephelometer
(no backscatter),
2005-March 2008

TSI 3-w Nephelometer
from March 2008
Quartz
filter-pack

*seven days
integrated

*seven days
integrated
day & night separated
Teflon filter-pack

*2 days
integrated-
day & night
separate
UCPC 3025 DMA
OPC
Egbert
2.5 µm

1.0 µm
(Oct. 2009)
1-w PSAPRadiance
1-w Nephelometer,
2005-Oct 2008

TSI 3-w Nephelometer
from Oct 2009
Quartz
filter-pack


*seven days
Teflon filter-pack


*daily
CPC
DMA
APS
*Sample frequency
w = wavelength