SmogRank / India / Mizoram / Aizawl

Aizawl, month by month

Aizawl has a measured daily mean on 273 days since 21 February 2025. Its worst month was March 2026, at 85 US AQI (27.5 µg/m³), 344th of 2,971 cities on that month's world ranking. Its cleanest was July 2025, at 6 US AQI (1.0 µg/m³).

Every month since 2025

2026too few days for a mean (a year needs 200)113 days measured
Jan19 daysFeb15 daysMar85#344Apr81#300May14 daysJun11 daysJul2 daysAugnoneSepnoneOct2 days
2025too few days for a mean (a year needs 256)160 days measured
JanFeb8 daysMar59#1,069Apr37#2,106May19 daysJun8#2,508Jul6#2,889Aug7 daysSepnoneOctnoneNov3 daysDec76#419
Each square is a month's mean PM2.5 in US AQI from Aizawl'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 Aizawl marked; each year, the year's.
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

14 months
MonthWhy
Oct 20262 of 12 days measured; a month needs 9. The others: 7 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours).
Sep 2026No day measured. The others: 5 with no readings from the monitor, 23 with readings for part of the day (a day needs 18 hours), 2 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 20262 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Jun 202611 of 30 days measured; a month needs 21. The others: 19 with under 18 hours of readings or readings that failed our checks.
May 202614 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks.
Feb 202615 of 28 days measured; a month needs 20. The others: 13 with under 18 hours of readings or readings that failed our checks.
Jan 202619 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Nov 20253 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Oct 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 20257 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks.
May 202519 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Feb 20258 of 28 days measured; a month needs 20.

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

Aizawl's worst months

MonthUS AQIDays measuredWorld rank
March 2026 8527.5 µg/m³24 of 31344thof 2,971
April 2026 8125.3 µg/m³26 of 30300thof 2,941
December 2025 7622.6 µg/m³26 of 31419thof 3,006
March 2025 5913.5 µg/m³31 of 311,069thof 2,862
April 2025 376.7 µg/m³22 of 302,106thof 2,951
June 2025 81.4 µg/m³21 of 302,508thof 2,508

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.

Aizawl's worst days

DayUS AQI
18 Apr 2026 14252.3 µg/m³
17 Apr 2026 14051.5 µg/m³
5 Jan 2026 13147.8 µg/m³
7 Jan 2026 13147.8 µg/m³
3 Jan 2026 13147.7 µg/m³
4 Jan 2026 13147.6 µg/m³
6 Jan 2026 13047.4 µg/m³
12 Apr 2026 12746.0 µg/m³
2 Jan 2026 12545.3 µg/m³
14 Apr 2026 12545.2 µg/m³

Daily means, the highest since 21 Feb 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, Aizawl, India, 21 Feb 2025 – 6 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/aizawl/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.

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

Updated 2026-10-12 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 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).