N.M. Admin. Code § 20.2.3.111 - OTHER AIR CONTAMINANTS
The maximum allowable concentrations of the following air contaminants in the ambient air are as follows:
A. Carbon Monoxide:
(1) 8-hour average: 8.7 ppm;
(2) 1-hour average: 13.1 ppm;
B. Nitrogen Dioxide:
(1) 24-hour average: 0.10 ppm;
(2) Annual arithmetic average: 0.05 ppm.
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