SmogRank / United Kingdom / England / Sunderland

Sunderland, month by month

Sunderland has a measured daily mean on 320 days since 30 March 2025. Its worst month was January 2026, at 56 US AQI (12.0 µg/m³), 928th of 2,617 cities on that month's world ranking. Its cleanest was September 2025, at 27 US AQI (4.8 µg/m³).

Every month since 2025

2026too few days for a mean (a year needs 199)90 days measured
Jan56#928Feb52#1,532Mar53#1,620AprnoneMaynoneJunnoneJulnoneAugnoneSep1 dayOct18#2,616
2025too few days for a mean (a year needs 256)230 days measured
JanFebMar2 daysApr47#1,655May41#1,527Jun32#2,206Jul29#2,545Aug34#2,476Sep27#2,690Oct32#1,732Nov12 daysDec37#2,244
Each square is a month's mean PM2.5 in US AQI from Sunderland's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Sunderland marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

8 months
MonthWhy
Sep 20261 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Nov 202512 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
Mar 20252 of 31 days measured; a month needs 22.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Sunderland's worst months

MonthUS AQIDays measuredWorld rankEpisode
January 2026 5612.0 µg/m³29 of 31928thof 2,617Europe, January and February 2026
March 2026 5310.2 µg/m³22 of 311,620thof 2,971Europe, 1 to 12 March 2026
February 2026 529.5 µg/m³27 of 281,532ndof 2,866Europe, January and February 2026
April 2025 478.4 µg/m³27 of 301,655thof 2,951–
May 2025 417.3 µg/m³28 of 311,527thof 2,826–
December 2025 376.7 µg/m³29 of 312,244thof 3,006–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Sunderland's worst days

DayUS AQIEpisode
24 Jan 2026 8929.3 µg/m³Europe, January and February 2026
23 Jan 2026 8627.9 µg/m³Europe, January and February 2026
5 Mar 2026 8627.7 µg/m³Europe, 1 to 12 March 2026
25 Jan 2026 8527.1 µg/m³Europe, January and February 2026
9 Mar 2026 7823.4 µg/m³Europe, 1 to 12 March 2026
21 Mar 2026 7723.2 µg/m³–
6 Mar 2026 7220.3 µg/m³Europe, 1 to 12 March 2026
1 May 2025 7120.0 µg/m³–
3 Feb 2026 7120.0 µg/m³Europe, January and February 2026
22 Jan 2026 6919.0 µg/m³Europe, January and February 2026

Daily means, the highest since 30 Mar 2025; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Sunderland, United Kingdom, 30 Mar 2025 – 11 Oct 2026. Monitor data from UK-AIR (Defra), read from the publisher; sources listed at smogrank.com/sources. smogrank.com/gb/sunderland/history (accessed 12 Oct 2026).

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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.

Sunderland now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 18:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).