SmogRank / India / Maharashtra / Thāne

Thāne, month by month

Thāne has a measured daily mean on 525 days since 19 February 2025. Its worst month was December 2025, at 136 US AQI (49.9 µg/m³), 202nd of 3,006 cities on that month's world ranking. Its cleanest was August 2025, at 62 US AQI (15.0 µg/m³).

Every month since 2025

202688 so far236 days measured201st of 2,791 in the world
Jan21 daysFeb18 daysMar97#199Apr90#228May88#184Jun90#145Jul76#258Aug77#191Sep74#243Oct6 days
202596 for the year289 days measured135th of 2,681 in the world
JanFeb10 daysMar136#86Apr107#103May89#152Jun82#160Jul74#178Aug62#355Sep67#262Oct90#197Nov124#189Dec136#202
Each square is a month's mean PM2.5 in US AQI from Thāne'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 Thāne 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

4 months
MonthWhy
Oct 20266 of 12 days measured; a month needs 9. The others: 4 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours), 1 with under 18 hours of readings or readings that failed our checks.
Feb 202618 of 28 days measured; a month needs 20. The others: 10 with under 18 hours of readings or readings that failed our checks.
Jan 202621 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks.
Feb 202510 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.

Thāne's worst months

MonthUS AQIDays measuredWorld rank
December 2025 13649.9 µg/m³31 of 31202ndof 3,006
March 2025 13649.7 µg/m³31 of 3186thof 2,862
November 2025 12444.9 µg/m³27 of 30189thof 2,715
April 2025 10737.8 µg/m³24 of 30103rdof 2,951
March 2026 9734.0 µg/m³30 of 31199thof 2,971
June 2026 9030.2 µg/m³26 of 30145thof 2,497

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.

Thāne's worst days

DayUS AQIEpisode
22 Dec 2025 17487.7 µg/m³–
11 Oct 2025 17285.5 µg/m³India and Pakistan, October 2025
12 Oct 2025 17082.0 µg/m³India and Pakistan, October 2025
21 Dec 2025 16880.2 µg/m³–
8 Mar 2025 16778.4 µg/m³–
30 Dec 2025 16777.9 µg/m³–
25 Nov 2025 16676.6 µg/m³–
10 Mar 2025 16575.9 µg/m³–
9 Mar 2025 16574.9 µg/m³–
12 Nov 2025 16474.4 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, Thāne, India, 19 Feb 2025 – 7 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/thane/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.

Thāne 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).