SmogRank / India / Haryana / Thānesar

Thānesar, month by month

Thānesar has a measured daily mean on 329 days since 30 September 2025. Its worst month was November 2025, at 184 US AQI (102.0 µg/m³), 42nd of 2,715 cities on that month's world ranking. Its cleanest was August 2026, at 95 US AQI (32.9 µg/m³).

Every month since 2025

2026143 so far247 days measured39th of 2,791 in the world
Jan21 daysFeb165#30Mar153#55Apr149#61May150#43Jun152#28Jul109#68Aug95#89Sep109#63Oct6 days
2025too few days for a mean (a year needs 256)82 days measured
JanFebMarAprMayJunJulAugSep1 dayOct162#37Nov184#42Dec181#55
Each square is a month's mean PM2.5 in US AQI from Thānesar'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 Thānesar 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

3 months
MonthWhy
Oct 20266 of 11 days measured; a month needs 8. The others: 4 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours).
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.
Sep 20251 of 30 days measured; a month needs 21.

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

Thānesar's worst months

MonthUS AQIDays measuredWorld rankEpisode
November 2025 184102.0 µg/m³28 of 3042ndof 2,715–
December 2025 18198.0 µg/m³29 of 3155thof 3,006–
February 2026 16576.1 µg/m³21 of 2830thof 2,866–
October 2025 16271.6 µg/m³24 of 3137thof 2,614India and Pakistan, October 2025
March 2026 15357.7 µg/m³30 of 3155thof 2,971–
June 2026 15257.3 µg/m³24 of 3028thof 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.

Thānesar's worst days

DayUS AQIEpisode
2 Nov 2025 263188.0 µg/m³–
20 Oct 2025 252177.0 µg/m³India and Pakistan, October 2025
22 Oct 2025 220145.0 µg/m³India and Pakistan, October 2025
1 Nov 2025 220145.0 µg/m³–
8 Nov 2025 214139.0 µg/m³–
22 Nov 2025 204129.0 µg/m³–
12 Dec 2025 204129.0 µg/m³–
3 Nov 2025 197121.0 µg/m³–
23 Nov 2025 197121.0 µg/m³–
26 Dec 2025 196120.0 µg/m³–

Daily means, the highest since 30 Sept 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, Thānesar, India, 30 Sep 2025 – 7 Oct 2026. Monitor data from CPCB via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/in/thanesar/history (accessed 12 Oct 2026).

Download chart (PNG)

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.

Thānesar 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).