SmogRank / Bhutan / Chukha / Phuntsholing

Phuntsholing, month by month

Phuntsholing has a measured daily mean on 281 days since 4 January 2026. Its worst month was February 2026, at 158 US AQI (65.2 µg/m³), 44th of 2,866 cities on that month's world ranking. Its cleanest was July 2026, at 42 US AQI (7.6 µg/m³).

Every month since 2026

202693 so far281 days measured170th of 2,791 in the world

Jan137#41 Feb158#44 Mar134#88 Apr103#161 May79#226 Jun93#134 Jul42#1,988 Aug56#599 Sep64#339 Oct88#41

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

Phuntsholing's worst months

Month	US AQI	Days measured	World rank
February 2026	15865.2 µg/m³	28 of 28	44thof 2,866
January 2026	13750.3 µg/m³	28 of 31	41stof 2,617
March 2026	13449.0 µg/m³	31 of 31	88thof 2,971
April 2026	10336.5 µg/m³	30 of 30	161stof 2,941
June 2026	9331.6 µg/m³	30 of 30	134thof 2,497
May 2026	7924.2 µg/m³	31 of 31	226thof 2,874

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.

Phuntsholing's worst days

Day	US AQI
9 Mar 2026	18198.8 µg/m³
30 Jan 2026	18198.3 µg/m³
12 Mar 2026	17488.3 µg/m³
8 Mar 2026	17387.4 µg/m³
11 Mar 2026	17387.4 µg/m³
1 Mar 2026	17285.5 µg/m³
31 Jan 2026	17285.1 µg/m³
10 Mar 2026	17082.6 µg/m³
8 Feb 2026	17082.5 µg/m³
16 Feb 2026	17082.0 µg/m³

Daily means, the highest since 4 Jan 2026; 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, Phuntsholing, Bhutan, 4 Jan 2026 – 11 Oct 2026. Monitor data from AirGradient via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/bt/phuntsholing/history (accessed 12 Oct 2026).

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

Updated 2026-10-12 17:07 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).