What is the air quality trend in Saltillo?

Over the past 8 days, Saltillo had an average AQI of 76 based on station measurements. The worst day was 2026-10-21 with AQI 130.

How is Saltillo air quality measured?

Air quality in Saltillo 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 Saltillo, Mexico

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

Historical PM2.5 and AQI trend from monitoring stations near Saltillo, Mexico.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

141h

PM2.5 Station

141h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	130	126–138	47.4 µg/m³	58.5	4h	1
2026-10-20	102	65–155	35.7 µg/m³	41.6	24h	1
2026-10-19	84	34–127	27.6 µg/m³	31.5	24h	1
2026-10-18	56	4–80	16.1 µg/m³	17.9	21h	1
2026-10-17	25	4–70	6.4 µg/m³	6.8	10h	1
2026-10-16	81	4–122	27.9 µg/m³	33.5	18h	1
2026-10-15	96	54–129	33.1 µg/m³	39.0	24h	1
2026-10-14	41	4–109	13.0 µg/m³	15.3	16h	1

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