Outside the usual range12 September 2026Environment

Haryana: average air quality index over the 7 days to 12 September 2026 was 98, above the 5-year median of 70 for the same week (+40%).

DeterioratingStrength 3.2 of 10Detected 3 Oct 2026, 21:15 IST

What happened

7-day mean to 12 September 2026: 98; That day alone: 77
5-year median, same week: 70
Change: +28
Change, per cent: +40%

100

150

200

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 average air quality index, lower is better. This movement is therefore assessed as a deterioration.

Historical context

Same week in earlier years: 2025 61, 2024 62, 2023 72, 2022 106, 2021 70. Daily values are compared as 7-day means because a single day mostly reflects weather.

Full history of average air quality index in Haryana

The underlying data

The stored observations this signal was computed from. Each opens its release.

Period	Value	Release	Where in the document
12 September 2026	77	CPCB National Air Quality Index bulletin, 12 September 2026 (245 cities)	AQI bulletin p.1–13, Index Value column: mean of 22 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Bhiwani (p.3), Charkhi dadri (p.3), Faridabad (p.5), Fatehabad (p.5), Gurugram (p.5), Hisar (p.6), Jind (p.6), Kaithal (p.6), Karnal (p.7), Kurukshetra (p.8), Manesar (p.8), Narnaul (p.9), Palwal (p.9), Panchgaon (p.9), Panchkula (p.9), Rohtak (p.11), Sirsa (p.11), Sonipat (p.11), Yamuna nagar (p.13)
11 September 2026	125	CPCB National Air Quality Index bulletin, 11 September 2026 (242 cities)	AQI bulletin p.1–11, Index Value column: mean of 21 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Charkhi dadri (p.3), Dharuhera (p.4), Faridabad (p.5), Fatehabad (p.5), Gurugram (p.5), Hisar (p.6), Jind (p.6), Kaithal (p.7), Karnal (p.7), Kurukshetra (p.8), Manesar (p.8), Narnaul (p.9), Panchgaon (p.9), Panchkula (p.9), Panipat (p.9), Rohtak (p.11), Sirsa (p.11), Sonipat (p.11)
10 September 2026	126	CPCB National Air Quality Index bulletin, 10 September 2026 (243 cities)	AQI bulletin p.1–13, Index Value column: mean of 23 city rows placed in Haryana — Ambala (p.1), Bahadurgarh (p.2), Ballabgarh (p.2), Bhiwani (p.3), Charkhi dadri (p.4), Faridabad (p.5), Fatehabad (p.5), Gurugram (p.5), Hisar (p.6), Jind (p.6), Kaithal (p.7), Karnal (p.7), Kurukshetra (p.8), Manesar (p.8), Narnaul (p.9), Palwal (p.9), Panchgaon (p.9), Panchkula (p.9), Panipat (p.9), Rohtak (p.11), Sirsa (p.11), Sonipat (p.11), Yamuna nagar (p.13)
9 September 2026

Source and method

Publisher: Central Pollution Control Board, Ministry of Environment, Forest and Climate Change
Release: CPCB National Air Quality Index bulletin, 12 September 2026 (245 cities)Archived file Original URLFirst seen 3 Oct 2026
Method: How a outside the usual range signal is computedHow average air quality index is measured

More signals for average air quality index in Haryana

Haryana: average air quality index over the 7 days to 21 September 2026 was 100, above the 5-year median of 81 for the same week (+23%).

Cite this

According to the India Health Observatory, Haryana: average air quality index over the 7 days to 12 September 2026 was 98, above the 5-year median of 70 for the same week (+40%). Source: Central Pollution Control Board, Ministry of Environment, Forest and Climate Change, CPCB National Air Quality Index bulletin, 12 September 2026 (245 cities). https://indiahealthobservatory.com/signals/air-quality-index--haryana--2026-09-12--baseline_breach