What is the air quality trend in Santa Ana Chiautempan?

Over the past 15 days, Santa Ana Chiautempan had an average AQI of 40 based on station measurements. The worst day was 2026-10-21 with AQI 69.

How is Santa Ana Chiautempan air quality measured?

Air quality in Santa Ana Chiautempan is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Santa Ana Chiautempan, Mexico

Name: Santa Ana Chiautempan Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Santa Ana Chiautempan, Mexico.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

293h

PM2.5 Station

293h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	69	39–113	21.1 µg/m³	5h	2
2026-10-20	46	13–167	14.4 µg/m³	24h	2
2026-10-19	32	3–99	8.6 µg/m³	18h	2
2026-10-18	22	5–43	5.3 µg/m³	18h	1
2026-10-17	37	5–74	9.6 µg/m³	21h	2
2026-10-16	35	3–85	9.3 µg/m³	18h	1
2026-10-15	41	10–88	10.9 µg/m³	14h	1
2026-10-14	37	5–133	10.0 µg/m³	17h	2
2026-10-13	48	19–128	14.1 µg/m³	24h	2
2026-10-12	35	2–94	9.3 µg/m³	23h	2
2026-10-11	38	2–78	10.3 µg/m³	24h	2
2026-10-10	44	13–136	12.4 µg/m³	23h	2
2026-10-09	45	10–140	13.0 µg/m³	24h	2
2026-10-08	47	9–95	13.5 µg/m³	24h	2
2026-10-07	36	8–100	10.5 µg/m³	16h	2

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