New Mexico Register / Volume XXXVI, Issue 13
/ July 15, 2025
This is an
amendment to 20.11.8 NMAC, Sections 11 and 13, effective 7/15/2025.
20.11.8.11 INCORPORATION OF FEDERAL AMBIENT AIR
QUALITY STANDARDS: Except as
otherwise provided, the National Primary and Secondary Ambient Air Quality
Standards of the United States environmental protection agency including the
General Provisions thereto, codified at 40 CFR Part 50 (including appendices),
as amended through [November 5, 2024] March 24, 2025, are hereby
incorporated into 20.11.8 NMAC. Section
20.11.8.13 NMAC is a summary of the federal and state standards incorporated in
20.11.8 NMAC.
[20.11.8.11 NMAC -
N, 7/1/2004; A, 9/14/2009; A, 11/05/2024; A, 7/15/2025]
20.11.8.13 SUMMARY OF FEDERAL AND STATE AMBIENT
AIR QUALITY STANDARDS:
|
Pollutant
|
Standards
|
|
|
Reference
|
Federal Primary
|
Federal Secondary
|
New Mexico State
|
|
Carbon
Monoxide (CO)
|
|
8-hour average
|
40 CFR 50.8
|
9 ppm
|
none
|
[8.7 ppm] none
|
|
1-hour average
|
40 CFR 50.8
|
35 ppm
|
none
|
[13.1 ppm]
none
|
|
8-hour average
|
20.2.3.111
NMAC
|
none
|
none
|
8.7 ppm
|
|
1-hour average
|
20.2.3.111
NMAC
|
none
|
none
|
13.1 ppm
|
|
Nitrogen
Dioxide (NO2)
|
|
[24-hour
average]
|
[20.2.3.111
NMAC]
|
[none]
|
[none]
|
[0.10 ppm]
|
|
1-hour average
|
40 CFR [50]
50.11
|
100 ppb
|
none
|
none
|
|
Annual arithmetic
mean
|
40 CFR 50.11
|
0.053 ppm
|
0.053 ppm
|
[0.05 ppm]
none
|
|
24-hour
average
|
20.2.3.111
NMAC
|
none
|
none
|
0.10 ppm
|
|
Annual
arithmetic average
|
20.2.3.111
NMAC
|
none
|
none
|
0.05 ppm
|
|
Ozone (O3)
|
|
|
|
8-hour average
|
40 CFR [50.15]
50.19
|
0.070 ppm
|
0.070 ppm
|
none
|
|
(Effective
December 28, 2015)
|
|
Sulfur Dioxide
(SO2)
|
|
1-hour average
|
40 CFR [50.4]
50.17
|
[0.75] 75
ppb
|
none
|
none
|
|
3-hour average
|
40 CFR 50.5
|
none
|
0.5 ppm
|
none
|
|
Annual (arithmetic
mean)
|
40 CFR 50.21
|
none
|
10 ppb
|
none
|
|
24-hour average
|
20.2.3.110 NMAC
|
none
|
none
|
0.10 ppm
|
|
Annual
(arithmetic mean)
|
20.2.3.110 NMAC
|
none
|
none
|
0.02 ppm
|
|
Particulate
Matter (PM2.5)
|
|
24-hour average
|
40 CFR 50.13; 40
CFR 50.18; 40 CFR 50.20
|
35 µg/m3
|
35 µg/m3
|
none
|
|
(Effective
December 18, 2006)
|
|
Annual
(arithmetic mean)
|
40 CFR [50.7
&
40 CFR 50.13]
50.20
|
9.0 µg/m3
|
[9,0] 15.0
µg/m3
|
none
|
|
Particulate
Matter (PM10)
|
|
24-hour average
|
40 CFR 50.6
|
150 µg/m3
|
150 µg/m3
|
none
|
|
Lead (Pb)
|
|
Rolling 3-month average
|
40 CFR 50.16
|
0.15µg/m3
|
0.15µg/m3
|
none
|
|
(Effective 1 year after date of area
attainment designation)
|
|
Hydrogen
Sulfide
|
|
1-hr average
|
20.2.3.110 NMAC
|
none
|
none
|
0.010 ppm
|
|
Total Reduced
Sulfur
|
|
1/2-hour average
|
20.2.3.110 NMAC
|
none
|
none
|
0.003 ppm
|
|
[Particulate
Matter (TSP)
|
|
24-hour
average
|
20.2.3.109
NMAC
|
none
|
none
|
none
|
|
7-day average
|
20.2.3.109
NMAC
|
none
|
none
|
none
|
|
30-day average
|
20.2.3.109
NMAC
|
none
|
none
|
none
|
|
Annual
geometric mean
|
20.2.3.109
NMAC
|
none
|
none
|
None]
|
[20.11.8.13 NMAC - N, 7/1/2004; A, 9/14/2009; A,
11/05/2024; A, 7/15/2025]