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Air Monitoring Methods -
Open Path Monitoring

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"FT-IR Open-Path Monitoring Guidance Document," EPA-600/R-96/040, April 1996 (PDF) (8.0 MB) - posted 6/24/1999

Open Path Siting Criteria Proposal (PDF) (105 kb) - 6/24/1999

ICR for "Ambient Air Quality Surveillance Siting Criteria for Open Path Analyzers" Final Rule (PDF) (33 kb) - 6/24/1999

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