N.M. Code R. § 20.11.61.28 Table 3- Significant Monitoring Concentrations

• Library: New Mexico Administrative Code
• Edition: 2023
• Currency: Current through Register Vol. 34, No. 24, December 19, 2023
• Citation: N.M. Code R. § 20.11.61.28
• Year: 2023

POLLUTANT		AIR QUALITY CONCENTRATION micrograms per cubic meter (µg/m3)	AVERAGING TIME
Carbon monoxide		575	8 hours
Fluorides		0.25	24 hours
Lead		0.1	3 months
Nitrogen dioxide		14	Annual
Ozone		b
Particulate matter (PM10)		10	24 hours
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

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