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Current as of October 02, 2022 | Updated by FindLaw Staff
Pollutant | Concentration range, parts per million (ppm) | Simultaneous measurements required | Maximum | |||
---|---|---|---|---|---|---|
1-hour | 24-hour | discrepancy | ||||
First set | Second set | First set | Second set | specification, per million | ||
Ozone | Low 0.06 to 0.10 | 5 | 6 | 0.02 | ||
Med. 0.15 to 0.25 | 5 | 6 | 0.03 | |||
High 0.35 to 0.46 | 4 | 6 | 0.04 | |||
Total | 14 | 18 | ||||
Carbon monoxide | Low 7 to 11 | 5 | 6 | 1.5 | ||
Med. 20 to 30 | 5 | 6 | 2.0 | |||
High 25 to 45 | 4 | 6 | 3.0 | |||
Total | 14 | 18 | ||||
Sulfur dioxide | Low 0.02 to 0.05 | 5 | 6 | 3 | 3 | 0.02 |
Med. 0.10 to 0.15 | 5 | 6 | 2 | 3 | 0.03 | |
High 0.30 to 0.50 | 4 | 6 | 2 | 2 | 0.04 | |
Total | 14 | 18 | 7 | 8 | ||
Nitrogen dioxide | Low 0.02 to 0.08 | 3 | 3 | 0.02 | ||
Med. 0.10 to 0.20 | 2 | 2 | 0.02 | |||
High 0.25 | 2 | 2 | 0.03 | |||
Total | 7 | 8 |
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment Pt. 53, Subpt. C, Tbl. C-1 Table C–1 to Subpart C of Part 53—Test Concentration Ranges, Number of Measurements Required, and Maximum Discrepancy Specifications - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-pt-40-53-subpt-c-tbl-c-1/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature or via Westlaw before relying on it for your legal needs.
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