SmogRank / Hacienda Santa Fe / León de los Aldama

Hacienda Santa Fe vs León de los Aldama: PM2.5 compared

Over the last year, Hacienda Santa Fe's air was about 1.8× as polluted as León de los Aldama's: PM2.5 averaged 31.0 µg/m³ against 16.9, on the 271 days both cities were measured. Hacienda Santa Fe had the dirtier air on 260 of those days, León de los Aldama on 11. Hacienda Santa Fe was over the WHO's daily guideline of 15 µg/m³ on 266 of them, León de los Aldama on 165.

Right now

Hacienda Santa Fe–not on the 24-hour board right now
León de los Aldama#506on the 24-hour board of 2,351, at 56 US AQI (11.8 µg/m³)

The last year, day by day

Hacienda Santa Fe
León de los Aldama
Each city's daily mean from 9 Oct 2025 to 8 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Hacienda Santa Fe, Nov 2025: 41.1 µg/m³León de los Aldama, Nov 2025: 19.3 µg/m³Nov2025Hacienda Santa Fe, Dec 2025: 49.8 µg/m³León de los Aldama, Dec 2025: 18.4 µg/m³DecHacienda Santa Fe, Jan 2026: 41.1 µg/m³León de los Aldama, Jan 2026: 20.4 µg/m³Jan2026Hacienda Santa Fe, Feb 2026: 32.8 µg/m³León de los Aldama, Feb 2026: 19.4 µg/m³FebHacienda Santa Fe, Mar 2026: 25.7 µg/m³León de los Aldama, Mar 2026: 17.1 µg/m³MarHacienda Santa Fe, Apr 2026: 23.5 µg/m³León de los Aldama, Apr 2026: 16.9 µg/m³AprHacienda Santa Fe, May 2026: 33.8 µg/m³León de los Aldama, May 2026: 18.7 µg/m³MayHacienda Santa Fe, Jun 2026: 27.2 µg/m³León de los Aldama, Jun 2026: 12.6 µg/m³JunHacienda Santa Fe, Jul 2026: 25.2 µg/m³León de los Aldama, Jul 2026: 16.2 µg/m³JulHacienda Santa Fe, Aug 2026: 26.3 µg/m³León de los Aldama, Aug 2026: 15.6 µg/m³AugHacienda Santa Fe, Sep 2026: 24.1 µg/m³León de los Aldama, Sep 2026: 13.4 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Hacienda Santa Fe. Faded: León de los Aldama. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

YearHacienda Santa FeLeón de los AldamaDays both measuredDays Hacienda Santa Fe was worse
2026 so far8765209201
20259066176159
2023110753733

Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Hacienda Santa Fe

León de los Aldama

Daily means in US AQI, with µg/m³ beside them, since the index stops at its top value, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Hacienda Santa Fe

Side by side with Santa Anita (the nearest), Mexicali (Mexico's 2nd worst on 30 days), Gujranwala (the world's worst on 30 days).

León de los Aldama

Side by side with Silao de la Victoria (the nearest), Gujranwala (the world's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Hacienda Santa Fe and León de los Aldama, 9 Oct 2025 – 8 Oct 2026, smogrank.com/compare/mx-hacienda-santa-fe/mx-leon-de-los-aldama (accessed 9 Oct 2026).

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-09 07:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).