Kingston upon Hull vs London: PM2.5 compared

Over the last year, Kingston upon Hull and London had about the same air: PM2.5 averaged 9.3 and 9.7 µg/m³, on the 150 days both cities were measured. Kingston upon Hull had the dirtier air on 52 of those days, London on 96. Kingston upon Hull was over the WHO's daily guideline of 15 µg/m³ on 24 of them, London on 16.

Right now

Kingston upon Hull#675on the 24-hour board of 738, at 13 US AQI (2.4 µg/m³)

London#546on the 24-hour board of 738, at 18 US AQI (3.3 µg/m³)

The last year, day by day

Kingston upon Hull

London

Each city's daily mean from 8 Oct 2025 to 7 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Monthly means in µg/m³ over the days both cities were measured. Solid: Kingston upon Hull. Faded: London. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

Year	Kingston upon Hull	London	Days both measured	Days Kingston upon Hull was worse
2026 so far	54	53	93	31
2025	42	49	240	64
2024	43	44	261	91
2023	43	49	223	60

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

Kingston upon Hull

26 Jan 20269331.8 µg/m³
5 Mar 20269231.1 µg/m³
3 Feb 20268728.5 µg/m³

London

26 Jan 202610838.5 µg/m³
4 Mar 20269532.5 µg/m³
9 Mar 20269231.2 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

Kingston upon Hull

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

London

Side by side with Borehamwood (the nearest), Birmingham (United Kingdom's 2nd worst on 30 days), Gujranwala (the world's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Kingston upon Hull and London, 8 Oct 2025 – 7 Oct 2026, smogrank.com/compare/gb-kingston-upon-hull/gb-london (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).