Outside the usual range29 September 2026Environment
Telangana: highest city air quality index over the 7 days to 29 September 2026 was 56, below the 5-year median of 66 for the same week (−15%).
What happened
- 7-day mean to 29 September 2026
- 56
- That day alone: 59
- 5-year median, same week
- 66
- Change
- −10
- Change, per cent
- −15%
Why it matters
Daily figures mostly reflect the weather, so the observatory compares the mean of the last seven days with the same week in up to five earlier years. A breach means this week sits well outside what those years would lead you to expect, and by at least 15%. It is reported when an unusual run begins and for the latest day while it lasts, not every day.
For highest city air quality index, lower is better. This movement is therefore assessed as an improvement.
Historical context
Same week in earlier years: 2025 69, 2024 58, 2023 67, 2022 66, 2021 40. Daily values are compared as 7-day means because a single day mostly reflects weather.
The underlying data
| Period | Value | Release | Where in the document |
|---|---|---|---|
| 29 September 2026 | 59 | CPCB National Air Quality Index bulletin, 29 September 2026 (252 cities) | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 110 (p.6), Satisfactory |
| 28 September 2026 | 58 | CPCB National Air Quality Index bulletin, 28 September 2026 (238 cities) | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 99 (p.5), Satisfactory |
| 27 September 2026 | 57 | CPCB National Air Quality Index bulletin, 27 September 2026 (235 cities) | AQI bulletin p.5, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 96 (p.5), Satisfactory |
| 26 September 2026 | 54 | CPCB National Air Quality Index bulletin, 26 September 2026 (243 cities) | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 104 (p.6), Satisfactory |
| 25 September 2026 | 60 | CPCB National Air Quality Index bulletin, 25 September 2026 (244 cities) | AQI bulletin p.6, Index Value column: highest of 1 city row placed in Telangana — Hyderabad, S.No 104 (p.6), Satisfactory |
| 24 September 2026 |
Source and method
- Release
- CPCB National Air Quality Index bulletin, 29 September 2026 (252 cities)Archived fileOriginal URLFirst seen 3 Oct 2026
More signals for highest city air quality index in Telangana
- Telangana: highest city air quality index of 83 on 30 September 2026 is the highest since 16 May 2026.
- Telangana: highest city air quality index of 70 on 22 September 2026 is the highest since 18 June 2026.
- Telangana: highest city air quality index over the 7 days to 2 September 2026 was 50, below the 5-year median of 62 for the same week (−19%).
Cite this
According to the India Health Observatory, Telangana: highest city air quality index over the 7 days to 29 September 2026 was 56, below the 5-year median of 66 for the same week (−15%). Source: Central Pollution Control Board, Ministry of Environment, Forest and Climate Change, CPCB National Air Quality Index bulletin, 29 September 2026 (252 cities). https://indiahealthobservatory.com/signals/worst-city-aqi--telangana--2026-09-29--baseline_breach
See also Telangana and 59 AQI in context.