SmogRank / Mexico / Nuevo León

Air quality in Ciudad Apodaca

Nuevo León, Mexico. PM2.5 from 2 reference monitors, updated hourly.

14.0 µg/m³
Moderate

Latest hour (13:00 UTC), 0.9× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#896
of 2,333 · 8.2 µg/m³
30 days
#323
of 2,331 · 11.7 µg/m³
Year
#344
of 2,173 · 14.6 µg/m³

Last 4 days, hour by hour

15302026-09-30 21:00 UTC: 19.0 µg/m³2026-10-01 12:00 UTC: 13.0 µg/m³2026-10-01 13:00 UTC: 14.0 µg/m³Sep 28Sep 29Sep 30Oct 1

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: 12.0 µg/m³2025-09-30: 14.9 µg/m³2025-10-01: 14.8 µg/m³2025-10-02: 12.1 µg/m³2025-10-03: 14.1 µg/m³2025-10-04: 12.4 µg/m³2025-10-05: 7.1 µg/m³2025-10-06: 9.8 µg/m³2025-10-07: 13.4 µg/m³2025-10-08: 5.7 µg/m³2025-10-09: 8.2 µg/m³2025-10-10: 8.9 µg/m³2025-10-11: 10.2 µg/m³2025-10-12: no data2025-10-13: 13.2 µg/m³2025-10-14: 7.5 µg/m³2025-10-15: 4.8 µg/m³2025-10-16: no data2025-10-17: 16.4 µg/m³2025-10-18: 19.2 µg/m³2025-10-19: 21.8 µg/m³2025-10-20: 18.6 µg/m³2025-10-21: 21.0 µg/m³2025-10-22: 20.6 µg/m³2025-10-23: 12.9 µg/m³2025-10-24: 14.4 µg/m³2025-10-25: 17.5 µg/m³2025-10-26: 19.8 µg/m³2025-10-27: 22.3 µg/m³2025-10-28: 22.0 µg/m³2025-10-29: 8.0 µg/m³2025-10-30: 11.5 µg/m³2025-10-31: 17.1 µg/m³2025-11-01: 12.3 µg/m³2025-11-02: no data2025-11-03: 14.5 µg/m³2025-11-04: 12.7 µg/m³2025-11-05: 16.1 µg/m³2025-11-06: 28.9 µg/m³2025-11-07: 30.7 µg/m³2025-11-08: 27.7 µg/m³2025-11-09: 27.9 µg/m³2025-11-10: 5.8 µg/m³2025-11-11: 11.7 µg/m³2025-11-12: 24.2 µg/m³2025-11-13: 21.1 µg/m³2025-11-14: 16.8 µg/m³2025-11-15: 17.0 µg/m³2025-11-16: 28.3 µg/m³2025-11-17: 19.5 µg/m³2025-11-18: 30.4 µg/m³2025-11-19: 35.4 µg/m³2025-11-20: 26.8 µg/m³2025-11-21: 24.1 µg/m³2025-11-22: 28.0 µg/m³2025-11-23: 15.9 µg/m³2025-11-24: 17.0 µg/m³2025-11-25: 20.2 µg/m³2025-11-26: 10.0 µg/m³2025-11-27: 8.9 µg/m³2025-11-28: 6.5 µg/m³2025-11-29: 16.6 µg/m³2025-11-30: 17.0 µg/m³2025-12-01: 13.4 µg/m³2025-12-02: 13.8 µg/m³2025-12-03: 26.6 µg/m³2025-12-04: 21.5 µg/m³2025-12-05: 9.0 µg/m³2025-12-06: 25.7 µg/m³2025-12-07: 23.1 µg/m³2025-12-08: 7.9 µg/m³2025-12-09: no data2025-12-10: 16.7 µg/m³2025-12-11: 10.6 µg/m³2025-12-12: 26.4 µg/m³2025-12-13: 27.0 µg/m³2025-12-14: 16.5 µg/m³2025-12-15: no data2025-12-16: no data2025-12-17: 18.2 µg/m³2025-12-18: 24.2 µg/m³2025-12-19: 15.5 µg/m³2025-12-20: 32.5 µg/m³2025-12-21: 24.5 µg/m³2025-12-22: 18.7 µg/m³2025-12-23: 10.1 µg/m³2025-12-24: 11.0 µg/m³2025-12-25: 12.2 µg/m³2025-12-26: 13.8 µg/m³2025-12-27: 17.9 µg/m³2025-12-28: 17.6 µg/m³2025-12-29: 8.4 µg/m³2025-12-30: 5.5 µg/m³2025-12-31: 13.7 µg/m³2026-01-01: 29.7 µg/m³2026-01-02: 31.7 µg/m³2026-01-03: 16.5 µg/m³2026-01-04: 13.8 µg/m³2026-01-05: 16.9 µg/m³2026-01-06: 24.0 µg/m³2026-01-07: 32.1 µg/m³2026-01-08: 38.6 µg/m³2026-01-09: 24.7 µg/m³2026-01-10: 9.6 µg/m³2026-01-11: 4.7 µg/m³2026-01-12: 8.1 µg/m³2026-01-13: 14.2 µg/m³2026-01-14: 12.7 µg/m³2026-01-15: 12.9 µg/m³2026-01-16: 16.2 µg/m³2026-01-17: 6.0 µg/m³2026-01-18: 9.0 µg/m³2026-01-19: 15.9 µg/m³2026-01-20: 11.3 µg/m³2026-01-21: 17.9 µg/m³2026-01-22: 19.0 µg/m³2026-01-23: 23.9 µg/m³2026-01-24: 12.3 µg/m³2026-01-25: 6.3 µg/m³2026-01-26: 8.9 µg/m³2026-01-27: 11.0 µg/m³2026-01-28: 19.8 µg/m³2026-01-29: 18.5 µg/m³2026-01-30: 7.9 µg/m³2026-01-31: 10.3 µg/m³2026-02-01: 10.8 µg/m³2026-02-02: 8.3 µg/m³2026-02-03: 14.6 µg/m³2026-02-04: 9.4 µg/m³2026-02-05: 11.5 µg/m³2026-02-06: 19.0 µg/m³2026-02-07: 20.6 µg/m³2026-02-08: 12.5 µg/m³2026-02-09: 17.2 µg/m³2026-02-10: 20.4 µg/m³2026-02-11: 17.7 µg/m³2026-02-12: 20.2 µg/m³2026-02-13: 19.8 µg/m³2026-02-14: 19.3 µg/m³2026-02-15: 8.8 µg/m³2026-02-16: 11.9 µg/m³2026-02-17: 15.1 µg/m³2026-02-18: 14.8 µg/m³2026-02-19: 25.2 µg/m³2026-02-20: 41.4 µg/m³2026-02-21: 30.5 µg/m³2026-02-22: 5.5 µg/m³2026-02-23: 8.4 µg/m³2026-02-24: 13.7 µg/m³2026-02-25: 19.0 µg/m³2026-02-26: 18.9 µg/m³2026-02-27: 16.5 µg/m³2026-02-28: 27.0 µg/m³2026-03-01: 21.2 µg/m³2026-03-02: 20.2 µg/m³2026-03-03: 20.9 µg/m³2026-03-04: 17.4 µg/m³2026-03-05: 16.9 µg/m³2026-03-06: 18.5 µg/m³2026-03-07: 24.2 µg/m³2026-03-08: 9.6 µg/m³2026-03-09: 19.5 µg/m³2026-03-10: 20.8 µg/m³2026-03-11: 11.0 µg/m³2026-03-12: 9.5 µg/m³2026-03-13: 12.1 µg/m³2026-03-14: 12.7 µg/m³2026-03-15: 11.5 µg/m³2026-03-16: 10.5 µg/m³2026-03-17: 8.1 µg/m³2026-03-18: 10.0 µg/m³2026-03-19: 12.8 µg/m³2026-03-20: 12.5 µg/m³2026-03-21: 10.5 µg/m³2026-03-22: 8.1 µg/m³2026-03-23: 9.6 µg/m³2026-03-24: 15.2 µg/m³2026-03-25: 15.9 µg/m³2026-03-26: 14.4 µg/m³2026-03-27: 15.3 µg/m³2026-03-28: 11.7 µg/m³2026-03-29: 10.5 µg/m³2026-03-30: 12.2 µg/m³2026-03-31: 11.7 µg/m³2026-04-01: 14.2 µg/m³2026-04-02: 15.9 µg/m³2026-04-03: 15.2 µg/m³2026-04-04: 19.9 µg/m³2026-04-05: no data2026-04-06: 5.7 µg/m³2026-04-07: 8.5 µg/m³2026-04-08: 8.1 µg/m³2026-04-09: 5.2 µg/m³2026-04-10: 5.5 µg/m³2026-04-11: 6.8 µg/m³2026-04-12: 12.3 µg/m³2026-04-13: 11.4 µg/m³2026-04-14: 14.6 µg/m³2026-04-15: 17.1 µg/m³2026-04-16: 14.9 µg/m³2026-04-17: 16.2 µg/m³2026-04-18: 14.0 µg/m³2026-04-19: no data2026-04-20: 5.8 µg/m³2026-04-21: no data2026-04-22: no data2026-04-23: 16.9 µg/m³2026-04-24: 24.0 µg/m³2026-04-25: 30.1 µg/m³2026-04-26: 27.7 µg/m³2026-04-27: 26.3 µg/m³2026-04-28: 34.3 µg/m³2026-04-29: 27.8 µg/m³2026-04-30: 21.5 µg/m³2026-05-01: 6.5 µg/m³2026-05-02: 5.0 µg/m³2026-05-03: 6.6 µg/m³2026-05-04: 10.0 µg/m³2026-05-05: 16.0 µg/m³2026-05-06: 25.4 µg/m³2026-05-07: 27.5 µg/m³2026-05-08: 17.1 µg/m³2026-05-09: 12.1 µg/m³2026-05-10: 13.6 µg/m³2026-05-11: 7.6 µg/m³2026-05-12: 12.0 µg/m³2026-05-13: 12.9 µg/m³2026-05-14: 11.8 µg/m³2026-05-15: 11.7 µg/m³2026-05-16: 14.3 µg/m³2026-05-17: 25.9 µg/m³2026-05-18: 33.2 µg/m³2026-05-19: 31.0 µg/m³2026-05-20: 12.1 µg/m³2026-05-21: 9.2 µg/m³2026-05-22: 12.0 µg/m³2026-05-23: 6.7 µg/m³2026-05-24: 8.7 µg/m³2026-05-25: 9.7 µg/m³2026-05-26: 12.7 µg/m³2026-05-27: 12.8 µg/m³2026-05-28: 12.4 µg/m³2026-05-29: 10.6 µg/m³2026-05-30: 12.5 µg/m³2026-05-31: 7.0 µg/m³2026-06-01: 9.6 µg/m³2026-06-02: 17.1 µg/m³2026-06-03: 10.2 µg/m³2026-06-04: 8.8 µg/m³2026-06-05: 6.7 µg/m³2026-06-06: 10.7 µg/m³2026-06-07: 11.3 µg/m³2026-06-08: 13.4 µg/m³2026-06-09: 8.3 µg/m³2026-06-10: 6.8 µg/m³2026-06-11: 6.4 µg/m³2026-06-12: 5.4 µg/m³2026-06-13: 7.2 µg/m³2026-06-14: 7.0 µg/m³2026-06-15: 7.1 µg/m³2026-06-16: 5.7 µg/m³2026-06-17: 12.7 µg/m³2026-06-18: 12.3 µg/m³2026-06-19: 15.3 µg/m³2026-06-20: 11.6 µg/m³2026-06-21: 8.6 µg/m³2026-06-22: 20.9 µg/m³2026-06-23: 14.1 µg/m³2026-06-24: 13.2 µg/m³2026-06-25: 12.7 µg/m³2026-06-26: 12.6 µg/m³2026-06-27: 19.6 µg/m³2026-06-28: 12.8 µg/m³2026-06-29: 15.5 µg/m³2026-06-30: 18.9 µg/m³2026-07-01: 15.8 µg/m³2026-07-02: 13.4 µg/m³2026-07-03: 15.0 µg/m³2026-07-04: 14.4 µg/m³2026-07-05: 13.2 µg/m³2026-07-06: 12.2 µg/m³2026-07-07: 14.7 µg/m³2026-07-08: 11.3 µg/m³2026-07-09: 9.4 µg/m³2026-07-10: 10.4 µg/m³2026-07-11: 13.9 µg/m³2026-07-12: 11.0 µg/m³2026-07-13: 12.5 µg/m³2026-07-14: 21.2 µg/m³2026-07-15: 19.5 µg/m³2026-07-16: 16.0 µg/m³2026-07-17: 14.3 µg/m³2026-07-18: 19.3 µg/m³2026-07-19: 18.5 µg/m³2026-07-20: 23.8 µg/m³2026-07-21: 19.2 µg/m³2026-07-22: 23.6 µg/m³2026-07-23: 24.6 µg/m³2026-07-24: 19.3 µg/m³2026-07-25: 16.3 µg/m³2026-07-26: 13.3 µg/m³2026-07-27: 14.2 µg/m³2026-07-28: 16.7 µg/m³2026-07-29: 19.4 µg/m³2026-07-30: 19.8 µg/m³2026-07-31: 14.1 µg/m³2026-08-01: 10.6 µg/m³2026-08-02: 11.1 µg/m³2026-08-03: 16.4 µg/m³2026-08-04: 25.7 µg/m³2026-08-05: 16.1 µg/m³2026-08-06: 15.4 µg/m³2026-08-07: 12.8 µg/m³2026-08-08: no data2026-08-09: no data2026-08-10: no data2026-08-11: 17.0 µg/m³2026-08-12: 12.6 µg/m³2026-08-13: 16.0 µg/m³2026-08-14: 16.1 µg/m³2026-08-15: 19.2 µg/m³2026-08-16: 13.9 µg/m³2026-08-17: 14.0 µg/m³2026-08-18: 13.4 µg/m³2026-08-19: 13.5 µg/m³2026-08-20: 14.7 µg/m³2026-08-21: 19.4 µg/m³2026-08-22: 18.0 µg/m³2026-08-23: 14.8 µg/m³2026-08-24: 14.4 µg/m³2026-08-25: 14.0 µg/m³2026-08-26: 18.1 µg/m³2026-08-27: 14.9 µg/m³2026-08-28: 14.1 µg/m³2026-08-29: 13.2 µg/m³2026-08-30: 13.7 µg/m³2026-08-31: 21.4 µg/m³2026-09-01: 13.8 µg/m³2026-09-02: 15.4 µg/m³2026-09-03: 18.0 µg/m³2026-09-04: 19.2 µg/m³2026-09-05: 14.7 µg/m³2026-09-06: 13.6 µg/m³2026-09-07: 11.5 µg/m³2026-09-08: 14.1 µg/m³2026-09-09: 10.8 µg/m³2026-09-10: 12.1 µg/m³2026-09-11: 15.1 µg/m³2026-09-12: 16.1 µg/m³2026-09-13: 10.5 µg/m³2026-09-14: 9.6 µg/m³2026-09-15: 21.1 µg/m³2026-09-16: 20.5 µg/m³2026-09-17: 11.0 µg/m³2026-09-18: 6.6 µg/m³2026-09-19: 7.4 µg/m³2026-09-20: 6.7 µg/m³2026-09-21: 7.2 µg/m³2026-09-22: 6.6 µg/m³2026-09-23: 7.7 µg/m³2026-09-24: 7.8 µg/m³2026-09-25: 7.7 µg/m³2026-09-26: 8.3 µg/m³2026-09-27: 6.3 µg/m³2026-09-28: 8.2 µg/m³2026-09-29: 10.7 µg/m³2026-09-30: no data
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

151 of 351 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#1846OctNovDecJanFebMarAprMayJunJulAugSep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15Jan 2026: 16.3 µg/m³JanFeb 2026: 17.1 µg/m³FebMar 2026: 14.0 µg/m³MarApr 2026: 16.2 µg/m³AprMay 2026: 13.8 µg/m³MayJun 2026: 11.4 µg/m³JunJul 2026: 16.1 µg/m³JulAug 2026: 15.5 µg/m³AugSep 2026: 11.7 µg/m³SepOct 2025: 14.0 µg/m³OctNov 2025: 19.7 µg/m³NovDec 2025: 17.2 µg/m³Dec

Faded bars: 2025. A month shows once it has 10 measured days.

This week against past years

This weekThis week: 8.2 µg/m³8.220252025: 13.1 µg/m³13.12024no data20232023: 17.3 µg/m³17.3

Mean PM2.5 for 24 Sept to 30 Sept in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
ApodacaMexico SINAICA Terms and ConditionsSinaica MexicoReference
PesqueríaMexico SINAICA Terms and ConditionsSinaica MexicoReference

The city's value is the median of its reference monitors each hour; low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Mexico

San Luis Potosí 31.7Tuxtla 29.1Hacienda Santa Fe 24.0San Salvador Tizatlalli 19.3Ciudad Nezahualcoyotl 18.0Naucalpan de Juárez 17.9Santa Anita 17.8Aguascalientes 17.8Guadalajara 17.5Saltillo 17.3Puebla 15.5Mexico City 14.9

30-day averages, µg/m³. All of Mexico →

Updated 2026-10-01 14:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.