Document Title/Subject:
Use of Collocated PM2.5 Data and Parameter Occurrence Codes
Related Documents:
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Signed by: David Misenheimer
Signature Date: 12/21/99
Contact:
Michael Papp
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Filename(s):
URL(s):
25colo.pdf
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Regulatory Authority:
Title 1 |
Division/Director:
Emissions, Monitoring, and Analysis Division (OAQPS) / David Mobley
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Submitted By:
papp.michael |
OGC Contact:
Kevin McLean
OGC Phone#:
202-564-5564 |
Internet Contact:
Jeff Clark |
Document Type:
Policy & Guidance Memos
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EPA Document Number:
Federal Register:
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Supersedes:
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Subject Category:
AIR
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Keywords:
Particulate matter
Air Quality Monitoring
PM2.5 Collocated Data |
Terms:
Air quality |
Abstract:
The new guidance is intended to clarify any potential ambiguities
in the QA Handbook Method 2.12 and to conform with a July 24, 1989
memorandum on the handling of PM10 collocated data. Accordingly, the
memo reiterates that data from a collocated sampler can be substituted
for the primary sampler if the primary sampler was not operating or
did not produce a valid measurement for that same day. The memo also
suggests that State and local agencies enter the substituted collocated
data as parameter occurrence codes 2 (POC-2). |
