Record1 October 2026Environment
Tripura: highest city air quality index of 146 on 1 October 2026 is the highest since 10 May 2026.
What happened
- 1 October 2026
- 146
- 2026-05-10
- 152
Why it matters
A record says how long it has been since the series was this high or this low. It puts a single value in the context of the whole published history.
For highest city air quality index, lower is better. This movement is therefore assessed as a deterioration.
Historical context
127 consecutive earlier days were lower.
The underlying data
| Period | Value | Release | Where in the document |
|---|---|---|---|
| 1 October 2026 | 146 | CPCB National Air Quality Index bulletin, 1 October 2026 (247 cities) | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Tripura — Agartala, S.No 1 (p.1), Moderate |
| 10 May 2026 | 152 | CPCB National Air Quality Index bulletin, 10 May 2026 (235 cities) | AQI bulletin p.1, Index Value column: highest of 1 city row placed in Tripura — Agartala, S.No 1 (p.1), Moderate |
Source and method
More signals for highest city air quality index in Tripura
- Tripura: highest city air quality index of 151 on 3 October 2026 is the highest since 10 May 2026.
- Tripura: highest city air quality index of 140 on 15 September 2026 is the highest since 10 May 2026.
- Tripura: highest city air quality index over the 7 days to 11 September 2026 was 84, above the 5-year median of 38 for the same week (+122%).
- Tripura: highest city air quality index over the 7 days to 6 September 2026 was 72, above the 4-year median of 41 for the same week (+76%).
- Tripura: highest city air quality index over the 7 days to 4 September 2026 was 64, above the 3-year median of 44 for the same week (+44%).
- Tripura: highest city air quality index over the 7 days to 26 August 2026 was 68, above the 3-year median of 28 for the same week (+142%).
Cite this
According to the India Health Observatory, Tripura: highest city air quality index of 146 on 1 October 2026 is the highest since 10 May 2026. Source: Central Pollution Control Board, Ministry of Environment, Forest and Climate Change, CPCB National Air Quality Index bulletin, 1 October 2026 (247 cities). https://indiahealthobservatory.com/signals/worst-city-aqi--tripura--2026-10-01--record
See also Tripura and 146 AQI in context.