N.M. Code R. § 20.2.74.503
Current through Register Vol. 35, No. 11, June 11, 2024
| POLLUTANT | AIR QUALITY CONCENTRATION micrograms per cubic meter | AVERAGING TIME | |
| Carbon monoxide | 575 | 8 hours | |
| Fluorides | 0.25 | 24 hours | |
| Lead | 0.1 | 3 months | |
| Nitrogen dioxide | 14 | Annual | |
| Ozone | b | ||
| PM10 | 10 | 24 hours | |
| PM2.5 | 0c | ||
| Sulfur compounds | |||
| Hydrogen sulfide (H2S) | 0.20 | 1 hour | |
| Reduced sulfur compounds (incl. H2S) | 10 | 1 hour | |
| Sulfur dioxide | 13 | 24 hours | |
| Sulfuric acid mist | a | ||
| Total reduced sulfur (incl. H2S) | 10 | 1 hour | |
| a - No acceptable monitoring techniques available at this time. Therefore, monitoring is not required until acceptable techniques are available. | |||
| b - No de minimis air quality level is provided for ozone. However, any net increase of 100 tons per year or more of volatile organic compounds or nitrogen oxides subject to PSD would be required to perform an ambient impact analysis, including the gathering of ambient air quality data. | |||
| c - In accordance with Sierra Club v. EPA, 706 F.3d 428 (DC Cir. 2013), no exemption is available with regard to PM2.5. | |||
N.M. Code R. § 20.2.74.503