SmogRank / India / Kerala / Alangad

Alangad, month by month

Alangad has a measured daily mean on 300 days since 19 February 2025. Its worst month was March 2025, at 102 US AQI (35.8 µg/m³), 208th of 2,862 cities on that month's world ranking. Its cleanest was July 2025, at 88 US AQI (29.0 µg/m³).

Every month since 2025

2026too few days for a mean (a year needs 200)90 days measured
Jan15 daysFeb14 daysMar18 daysAprnoneMaynoneJunnoneJulnoneAug18 daysSep99#92Oct4 days
2025too few days for a mean (a year needs 256)210 days measured
JanFeb8 daysMar102#208Apr20 daysMay94#127Jun19 daysJul88#92Aug96#71Sep19 daysOct21 daysNov14 daysDec15 days
Each square is a month's mean PM2.5 in US AQI from Alangad'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 Alangad 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

16 months
MonthWhy
Oct 20264 of 12 days measured; a month needs 9. The others: 5 with no readings from the monitor, 3 with readings for part of the day (a day needs 18 hours).
Aug 202618 of 31 days measured; a month needs 22. The others: 13 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.
Mar 202618 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks.
Feb 202614 of 28 days measured; a month needs 20. The others: 14 with under 18 hours of readings or readings that failed our checks.
Jan 202615 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Dec 202515 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Nov 202514 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Oct 202521 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Sep 202519 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jun 202519 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Apr 202520 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
Feb 20258 of 28 days measured; a month needs 20. The others: 2 with under 18 hours of readings or readings that failed our checks.

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

Alangad's worst months

MonthUS AQIDays measuredWorld rank
March 2025 10235.8 µg/m³25 of 31208thof 2,862
September 2026 9935.0 µg/m³21 of 3092ndof 2,981
August 2025 9633.2 µg/m³23 of 3171stof 2,901
May 2025 9432.3 µg/m³22 of 31127thof 2,826
July 2025 8829.0 µg/m³24 of 3192ndof 2,889

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.

Alangad's worst days

DayUS AQI
20 Feb 2026 17284.9 µg/m³
30 Jan 2026 16980.7 µg/m³
30 Dec 2025 16879.1 µg/m³
10 Feb 2026 16676.2 µg/m³
1 Jan 2026 16575.2 µg/m³
13 Feb 2026 16574.9 µg/m³
22 Jan 2026 16474.7 µg/m³
29 Jan 2026 16474.5 µg/m³
31 Dec 2025 16373.0 µg/m³
21 Jan 2026 16372.7 µg/m³

Daily means, the highest since 19 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, Alangad, India, 19 Feb 2025 – 7 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/alangad/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.

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

Updated 2026-10-12 22:07 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).