New Mexico Register / Volume XXXV, Issue 21 / November 5, 2024

 

 

This is an amendment to 20.11.8 NMAC, Sections 11, 12, and 13, effective November 5, 2024.

 

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 [January 12, 2009] October 9, 2024, 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]

 

20.11.8.12             INCORPORATION OF STATE AMBIENT AIR QUALITY STANDARDS:  Except as otherwise provided, the state Ambient Air Quality Standards of the environmental improvement board codified at 20.2.3 NMAC, as amended through October 9, 2024, 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.

[20.11.8.12 NMAC - N, 7/1/2004; A, 9/14/2009; A, 11/05/2024]

 

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

1-hour average

40 CFR 50.8

35 ppm

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

100 ppb

none

 none

Annual arithmetic mean

40 CFR 50.11

0.053 ppm

0.053 ppm

0.05 ppm

 

Ozone (O3)

 

8-hour average

40 CFR 50.10

[0.8 ppm] 0.070 ppm

[0.8 ppm] 0.070 ppm

none

[(Effective May 27, 2008)] (Effective December 28, 2015)

 

Sulfur Dioxide (SO2)

1-hour average

40 CFR 50.4

0.75 ppb

none

none

3-hour average

40 CFR 50.5

none

0.5 ppm

none

24-hour average

[40 CFR 50.4] 20.2.3.110 NMAC

[0.14 ppm] none

none

0.10 ppm

Annual (arithmetic mean)

[40 CFR 50.4] 20.2.3.110 NMAC

[0.030 ppm] none

none

0.02 ppm

 

Particulate Matter (PM2.5)

24-hour average

40 CFR 50.13

35 µg/m3

35 µg/m3

none

(Effective December 18, 2006)

Annual (arithmetic mean)

40 CFR 50.7 &

40 CFR 50.13

[15.0 µg/m3] 9.0 µg/m3

[15.0 µg/m3] 9.0 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

[150 µg/m3] none

7-day average

20.2.3.109 NMAC

none

none

[110 µg/m3] none

30-day average

20.2.3.109 NMAC

none

none

[90 µg/m3] none

Annual geometric mean

20.2.3.109 NMAC

none

none

[60 µg/m3] none

[20.11.8.13 NMAC - N, 7/1/2004; A, 9/14/2009; A, 11/05/2024]