London vs Newton Abbot: PM2.5 compared

Over the last year, London's air was about 1.9× as polluted as Newton Abbot's: PM2.5 averaged 10.1 µg/m³ against 5.3, on the 111 days both cities were measured. London had the dirtier air on 105 of those days, Newton Abbot on 6. London was over the WHO's daily guideline of 15 µg/m³ on 12 of them, Newton Abbot on 5.

Right now

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

Newton Abbot#613on the 24-hour board of 738, at 16 US AQI (2.8 µg/m³)

The last year, day by day

London

Newton Abbot

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: London. Faded: Newton Abbot. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

Year	London	Newton Abbot	Days both measured	Days London was worse
2026 so far	55	32	69	67
2025	48	29	185	173
2024	44	26	246	233
2023	48	28	200	186

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

London

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

Newton Abbot

5 Mar 20268527.3 µg/m³
21 Mar 20268125.0 µg/m³
9 Mar 20267521.8 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

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).

Newton Abbot

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

Use this page

SmogRank, PM2.5 daily means compared, London and Newton Abbot, 8 Oct 2025 – 7 Oct 2026, smogrank.com/compare/gb-london/gb-newton-abbot (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).