SmogRank / Malta / L-Għarb / Għarb

Għarb, month by month

Għarb has a measured daily mean on 931 days since 13 April 2023. Its worst month was July 2023, at 63 US AQI (15.8 µg/m³), 128th of 1,432 cities on that month's world ranking. Its cleanest was December 2024, at 32 US AQI (5.7 µg/m³).

Every month since 2023

202654 so far204 days measured868th of 2,791 in the world

Jan56#950 Feb54#1,230 Mar44#2,137 Apr61#609 May54#689 Jun52#699 Jul58#775Aug4 daysSep12 daysOct41#1,214

202545 for the year274 days measured1,722nd of 2,681 in the world

Jan39#1,673 Feb41#1,726Mar16 daysApr43#1,816 May36#1,759Jun14 daysJul53#1,271 Aug53#1,233 Sep34#2,012 Oct37#1,326 Nov35#2,100Dec12 days

2024too few days for a mean (a year needs 257)224 days measured

JannoneFeb50#839Mar15 daysApr54#884 May58#390 Jun55#462 Jul62#187Aug15 daysSepnoneOct14 daysNov19 daysDec32#2,139

2023too few days for a mean (a year needs 256)229 days measured

JanFebMarApr9 daysMay52#543 Jun54#709 Jul63#128 Aug62#191 Sep55#414 Oct53#337Nov19 daysDec35#1,743

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

13 months

Month	Why
Sep 2026	12 of 30 days measured; a month needs 21. The others: 12 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours).
Aug 2026	4 of 31 days measured; a month needs 22. The others: 26 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours).
Dec 2025	12 of 31 days measured; a month needs 22. The others: 12 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours).
Jun 2025	14 of 30 days measured; a month needs 21. The others: 6 with no readings from the monitor, 10 with readings for part of the day (a day needs 18 hours).
Mar 2025	16 of 31 days measured; a month needs 22. The others: 8 with no readings from the monitor, 7 with readings for part of the day (a day needs 18 hours).
Nov 2024	19 of 30 days measured; a month needs 21. The others: 9 with no readings from the monitor, 2 with readings for part of the day (a day needs 18 hours).
Oct 2024	14 of 31 days measured; a month needs 22. The others: 1 with no readings from the monitor, 16 with readings for part of the day (a day needs 18 hours).
Sep 2024	No day measured. The others: 18 with no readings from the monitor, 12 with readings for part of the day (a day needs 18 hours).
Aug 2024	15 of 31 days measured; a month needs 22. The others: 2 with no readings from the monitor, 14 with readings for part of the day (a day needs 18 hours).
Mar 2024	15 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitor, 6 with readings for part of the day (a day needs 18 hours).
Jan 2024	No day measured. The others: 31 with no readings from the monitor.
Nov 2023	19 of 30 days measured; a month needs 21. The others: 8 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours).
Apr 2023	9 of 30 days measured; a month needs 21. The others: 3 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours), 3 missing from OpenAQ's archive.

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

Għarb's worst months

Month	US AQI	Days measured	World rank
July 2023	6315.8 µg/m³	25 of 31	128thof 1,432
August 2023	6215.2 µg/m³	28 of 31	191stof 1,980
July 2024	6214.8 µg/m³	26 of 31	187thof 2,566
April 2026	6114.3 µg/m³	21 of 30	609thof 2,941
May 2024	5813.0 µg/m³	29 of 31	390thof 2,684
July 2026	5812.7 µg/m³	29 of 31	775thof 2,784

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.

Għarb's worst days

Day	US AQI
13 Apr 2026	16879.9 µg/m³
27 Mar 2024	15561.1 µg/m³
29 Mar 2024	15560.9 µg/m³
19 Jul 2023	14553.4 µg/m³
14 Apr 2026	12846.4 µg/m³
19 May 2024	11842.3 µg/m³
23 Mar 2025	11742.2 µg/m³
5 Jan 2026	11742.0 µg/m³
18 May 2024	11440.8 µg/m³
20 May 2024	11340.2 µg/m³

Daily means, the highest since 13 Apr 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, Għarb, Malta, 13 Apr 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/mt/gharb/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.

Għarb 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).