SmogRank / Canada / British Columbia / Kitimat

Kitimat, month by month

Kitimat has a measured daily mean on 1,295 days since 1 January 2023. Its worst month was August 2023, at 51 US AQI (9.1 µg/m³), 762nd of 1,980 cities on that month's world ranking. Its cleanest was October 2024, at 13 US AQI (2.4 µg/m³). 2025 averaged 22 US AQI (3.9 µg/m³), against 18 US AQI (3.3 µg/m³) in 2024.

Every month since 2023

202627 so far278 days measured2,664th of 2,791 in the world

Jan27#2,370 Feb22#2,737 Mar23#2,779 Apr29#2,423 May27#2,385 Jun24#2,245 Jul30#2,540 Aug28#2,749 Sep31#2,060 Oct30#2,029

202522 for the year349 days measured2,638th of 2,681 in the world

Jan22#2,372 Feb26#2,429 Mar21#2,691 Apr22#2,801 May17#2,761 Jun17#2,482 Jul18#2,830 Aug22#2,816 Sep29#2,508 Oct22#2,417 Nov21#2,603 Dec22#2,855

202418 for the year362 days measured2,078th of 2,097 in the world

Jan17#2,349 Feb21#2,352 Mar22#1,502 Apr17#2,430 May16#2,605 Jun18#2,471 Jul16#2,533 Aug31#1,816 Sep14#2,001 Oct13#2,010 Nov18#2,541 Dec22#2,454

202329 for the year306 days measured1,242nd of 1,355 in the world

Jan21#1,187Feb1 dayMar11 daysApr24#1,445 May31#1,375 Jun23#1,483 Jul31#1,162 Aug51#762 Sep29#1,955 Oct33#1,492 Nov23#2,103 Dec18#2,195

Each square is a month's mean PM2.5 in US AQI from Kitimat'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 Kitimat 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

2 months

Month	Why
Mar 2023	11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive.
Feb 2023	1 of 28 days measured; a month needs 20. The others: 2 with readings for part of the day (a day needs 18 hours), 25 missing from OpenAQ's archive.

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

Kitimat's worst months

Month	US AQI	Days measured	World rank
August 2023	519.1 µg/m³	30 of 31	762ndof 1,980
October 2023	336.0 µg/m³	31 of 31	1,492ndof 2,012
August 2024	315.6 µg/m³	31 of 31	1,816thof 2,010
May 2023	315.5 µg/m³	31 of 31	1,375thof 1,600
July 2023	315.5 µg/m³	30 of 31	1,162ndof 1,432
September 2026	315.5 µg/m³	29 of 30	2,060thof 2,981

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.

Kitimat's worst days

Day	US AQI
26 Aug 2023	12444.8 µg/m³
27 Aug 2023	10537.1 µg/m³
28 Aug 2023	8728.3 µg/m³
17 Aug 2024	7723.3 µg/m³
25 Aug 2023	7321.1 µg/m³
4 Sept 2025	6416.3 µg/m³
5 Sept 2025	6416.3 µg/m³
29 Aug 2023	6114.3 µg/m³
22 Aug 2023	6114.2 µg/m³
6 Sept 2025	6013.8 µg/m³

Daily means, the highest since 1 Jan 2023; 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, Kitimat, Canada, 1 Jan 2023 – 11 Oct 2026. Monitor data from AirNow, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/ca/kitimat/history (accessed 12 Oct 2026).

Download chart (PNG)

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.

Kitimat 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).