SmogRank / Mecca / New York City

Mecca vs New York City: PM2.5 compared

Over the last year, Mecca's air was about 2.0× as polluted as New York City's: PM2.5 averaged 12.1 µg/m³ against 6.1, on the 80 days both cities were measured. Mecca had the dirtier air on 57 of those days, New York City on 23. Mecca was over the WHO's daily guideline of 15 µg/m³ on 25 of them, New York City on 4.

Right now

Mecca#87on the 24-hour board of 2,002, at 77 US AQI (23.1 µg/m³)
New York City#1,842on the 24-hour board of 2,002, at 16 US AQI (2.8 µg/m³)

The last year, day by day

Mecca
New York City
Each city's daily mean from 7 Oct 2025 to 6 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Nov2025DecJan2026FebMarMecca, Apr 2026: 6.7 µg/m³New York City, Apr 2026: 6.5 µg/m³AprMecca, May 2026: 16.9 µg/m³New York City, May 2026: 7.5 µg/m³MayJunJulAugMecca, Sep 2026: 11.5 µg/m³New York City, Sep 2026: 4.7 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Mecca. Faded: New York City. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Each city's worst days

Mecca

New York City

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

Mecca

Side by side with Indio (the nearest), Hanford (United States's 2nd worst on 30 days), Gujranwala (the world's worst on 30 days).

New York City

Side by side with Jersey City (the nearest), Gujranwala (the world's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Mecca and New York City, 7 Oct 2025 – 6 Oct 2026, smogrank.com/compare/us-mecca/us-new-york-city (accessed 7 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 2026-10-07 08:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.