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TE-WILBUR OPERATIONS MANUAL REV 002.22 4/27/2017
Tisch Environmental 1-TSP-AND-PM10 sales@tisch-env.com www.tisch-env.com Page 24 of 185
2.6 Siting
Siting is important for proper collection of PM2.5 or PM10 particulate matter.
Refer to 40CFR Part 58, Appendix D and the guidance document for network
design and optimum site exposure for PM2.5 and PM10 published by the US EPA
Office of Air Quality Planning and Standards (OAQPS).
The following installation guidelines should be observed:
o The sampler must have an unobstructed air flow for a minimum of 2
meters in all directions. Provide sufficient area for a collocated FRM
sampler and for installation of a portable FRM performance evaluation
(PE) sampler.
o The sampler’s inlet should be placed at a height of 2-15m above ground
level.
o If the sampler is collocated with any other samplers, the spacing
between sampler inlets must be greater or equal to 1m if the other
samplers are low-volume (16.67 Lpm and below). If high-volume
samplers are collocated next to the sampler, the spacing between
sampler inlets must be greater or equal to 2m. The spacing between any
air inlets should be no more than 4m.
o Location safety ensure to locate the unit in a safe location that can be
accessed easily and that routine maintenance can be performed by the
operator easily and safely. The unit weighs over 40lbs so care must be
taken if ladders are needed to access the sampling site.
o Location security ensure to locate the units in areas that are well
secured such as on rooftops with locked access and ground level sites
with fencing. If the ground level site has fencing, ensure it is chain link
and does not impede air flow. The sampler’s inlet should extend above
the fence.
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