Pickering vs York: PM2.5 compared
Over the last year, York's air was 48% more polluted than Pickering's: PM2.5 averaged 8.9 µg/m³ against 6.0, on the 93 days both cities were measured. York had the dirtier air on 83 of those days, Pickering on 9. York was over the WHO's daily guideline of 15 µg/m³ on 14 of them, Pickering on 7.
Right now
The last year, day by day
Month by month
Year by year
| Year | Pickering | York | Days Pickering was worse |
|---|---|---|---|
| 2026 so far | 40 | 54 | 6 |
| 2025 | 26 | 37 | 9 |
| 2024 | 26 | 38 | 8 |
| 2023 | 26 | 43 | 4 |
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
Pickering
- 5 Mar 20267320.8 µg/m³
- 25 Jan 20267120.0 µg/m³
- 26 Jan 20266818.4 µg/m³
York
- 5 Mar 20269130.7 µg/m³
- 9 Mar 20268829.2 µg/m³
- 26 Jan 20268024.8 µg/m³
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
Pickering
Side by side with London (United Kingdom's worst on 30 days), Gujranwala (the world's worst on 30 days).
York
Side by side with Leeds (the nearest), London (United Kingdom's worst on 30 days), Gujranwala (the world's worst on 30 days).
Use this page
SmogRank, PM2.5 daily means compared, Pickering and York, 8 Oct 2025 – 7 Oct 2026, smogrank.com/compare/gb-pickering/gb-york (accessed 8 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 2026-10-08 20:07 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).