Prism Geo · city intelligence · pilot
Prism Geo · Rankings · Air Quality Improvement
Environment Pollution · evidence ranking · 2021–2025

Which Indian cities show the strongest air quality improvement reporting signal?

A comparison of 45 Indian cities covered by Prism Geo. 17 pass the evidence gates and are ranked by exact air_quality_improvement-tagged news reports per 10,000 civic reports. This measures the prominence of a topic in coverage—not real-world incidence, prevalence, or safety.

Geographic view · 17 city-linked districts

Where the air quality improvement reporting signal is concentrated

Every highlighted polygon is the 2021 administrative district containing a ranked city's coordinate. Color shows the city's reporting-signal rank band—not a measured district-wide rate, prevalence, or severity assessment.

Ranks 1–5Ranks 6–10Ranks 11–17 Not ranked
Indian districts containing cities in the air quality improvement reporting ranking India's national silhouette has a soft boundary shadow. District lines are subdued, while the 17 districts containing ranked cities are highlighted by rank. #3 Indore — Indore district proxy — 7.06 tagged reports per 10,000 civic reports#2 Surat — Surat district proxy — 9.54 tagged reports per 10,000 civic reports#16 Patna — Patna district proxy — 1.15 tagged reports per 10,000 civic reports#10 Gurugram — Gurgaon district proxy — 3.36 tagged reports per 10,000 civic reports#14 Chandigarh — Chandigarh district proxy — 1.34 tagged reports per 10,000 civic reports#6 Kolkata — Kolkata district proxy — 5.11 tagged reports per 10,000 civic reports#8 Ludhiana — Ludhiana district proxy — 3.89 tagged reports per 10,000 civic reports#15 Bengaluru — Bangalore district proxy — 1.20 tagged reports per 10,000 civic reports#7 Pune — Pune district proxy — 4.14 tagged reports per 10,000 civic reports#12 Mumbai — Mumbai Suburban district proxy — 2.43 tagged reports per 10,000 civic reports#11 Jaipur — Jaipur district proxy — 2.47 tagged reports per 10,000 civic reports#9 Bareilly — Bareilly district proxy — 3.61 tagged reports per 10,000 civic reports#17 Lucknow — Lucknow district proxy — 0.85 tagged reports per 10,000 civic reports#4 Ghaziabad — Ghaziabad district proxy — 6.47 tagged reports per 10,000 civic reports#5 Noida — Gautam Buddha Nagar district proxy — 6.38 tagged reports per 10,000 civic reports#13 Chennai — Chennai district proxy — 1.80 tagged reports per 10,000 civic reports#1 New Delhi — Central district proxy — 12.08 tagged reports per 10,000 civic reports

Boundary geometry: geoBoundaries, ADM2, 2021 representation, Open Data Commons Open Database License 1.0. Districts are visual locators for city-ranked data and may not reflect later administrative changes.

How to read this ranking

New Delhi leads the normalized comparison at 12.08 tagged reports per 10,000 civic reports. New Delhi leads raw volume with 359 reports. The two leaders can differ because normalization controls for each city's overall civic-news footprint.

Cities evaluated
45
existing India profiles
Cities ranked
17
passed both evidence gates
Normalized leader
New Delhi
12.08 per 10K
Raw-volume leader
New Delhi
359 tagged reports
Largest recent rise
Ghaziabad
+3.40 per-10K points
National comparison
-0.53
recent per-10K change
Computed findings
What stands out
Complete ranking
Primary and companion measures

Air Quality Improvement reporting signal by city

The primary rank uses tagged reports per 10,000 civic reports. Raw rank, recent change, and active years show whether a result depends on city size, timing, or a narrow burst.

RankCitySignal / 10KTagged reportsRaw rankRecent changeActive years
1New Delhi
Delhi
12.083591-0.245/5
2Surat
Gujarat
9.54413+28.992/5
3Indore
Madhya Pradesh
7.0688-0.314/5
4Ghaziabad
Uttar Pradesh
6.47116+3.405/5
5Noida
Uttar Pradesh
6.38135-2.725/5
6Kolkata
West Bengal
5.11163-7.574/5
7Pune
Maharashtra
4.14154-2.725/5
8Ludhiana
Punjab
3.89511-0.714/5
9Bareilly
Uttar Pradesh
3.61314-2.132/5
10Gurugram
Haryana
3.3687-4.004/5
11Jaipur
Rajasthan
2.47412+1.443/5
12Mumbai
Maharashtra
2.43292+1.884/5
13Chennai
Tamil Nadu
1.80510-1.823/5
14Chandigarh
Chandigarh
1.34315+0.073/5
15Bengaluru
Karnataka
1.2079-1.674/5
16Patna
Bihar
1.15317+1.043/5
17Lucknow
Uttar Pradesh
0.85316-1.411/5

A city qualifies with at least 3 exact-tag reports and 300 total civic reports across complete years 2021–2025.

City-by-city evidence
Normalized #1 · raw-volume #1 · high coverage base

New Delhi: Air Quality Improvement reporting profile

359 tagged reports appeared within 297,207 civic reports in 2021–2025, equal to 12.08 per 10,000. The recent-period comparison shows a broadly stable share of local civic coverage: 12.17 in 2021–2023 versus 11.93 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
12.08
per 10K civic reports
Tagged coverage
359
5 active years
Recent change
-0.24
per-10K points
Action marker
9.2%
classifier coverage
20212025
Annual evidence
2021 · 19.43/10K (88 reports)2022 · 5.40/10K (35 reports)2023 · 13.74/10K (97 reports)2024 · 7.15/10K (44 reports)2025 · 17.29/10K (95 reports)
Classifier category mix
Environment Pollution · 314Public health · 38Infrastructure & utilities · 6

The classifier marked authority or institutional action in 33 reports (9.2%) and conclusion language in 33 (9.2%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open New Delhi's broader civic problems analysis →
Normalized #2 · raw-volume #13 · qualified coverage base

Surat: Air Quality Improvement reporting profile

4 tagged reports appeared within 4,191 civic reports in 2021–2025, equal to 9.54 per 10,000. The recent-period comparison shows a rising share of local civic coverage: 0.00 in 2021–2023 versus 28.99 in 2024–2025. The city's peak normalized year was 2024.

Normalized signal
9.54
per 10K civic reports
Tagged coverage
4
2 active years
Recent change
+28.99
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 0.00/10K (0 reports)2022 · 0.00/10K (0 reports)2023 · 0.00/10K (0 reports)2024 · 29.85/10K (2 reports)2025 · 28.17/10K (2 reports)
Classifier category mix
Environment Pollution · 4

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Surat's broader civic problems analysis →
Normalized #3 · raw-volume #8 · qualified coverage base

Indore: Air Quality Improvement reporting profile

8 tagged reports appeared within 11,332 civic reports in 2021–2025, equal to 7.06 per 10,000. The recent-period comparison shows a broadly stable share of local civic coverage: 7.18 in 2021–2023 versus 6.87 in 2024–2025. The city's peak normalized year was 2022.

Normalized signal
7.06
per 10K civic reports
Tagged coverage
8
4 active years
Recent change
-0.31
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 0.00/10K (0 reports)2022 · 11.71/10K (3 reports)2023 · 7.07/10K (2 reports)2024 · 10.98/10K (2 reports)2025 · 3.93/10K (1 reports)
Classifier category mix
Environment Pollution · 8

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Indore's broader civic problems analysis →
Normalized #4 · raw-volume #6 · qualified coverage base

Ghaziabad: Air Quality Improvement reporting profile

11 tagged reports appeared within 17,010 civic reports in 2021–2025, equal to 6.47 per 10,000. The recent-period comparison shows a rising share of local civic coverage: 5.05 in 2021–2023 versus 8.45 in 2024–2025. The city's peak normalized year was 2024.

Normalized signal
6.47
per 10K civic reports
Tagged coverage
11
5 active years
Recent change
+3.40
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 6.02/10K (2 reports)2022 · 2.89/10K (1 reports)2023 · 6.41/10K (2 reports)2024 · 12.37/10K (5 reports)2025 · 3.27/10K (1 reports)
Classifier category mix
Environment Pollution · 10Governance & policy · 1

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Ghaziabad's broader civic problems analysis →
Normalized #5 · raw-volume #5 · qualified coverage base

Noida: Air Quality Improvement reporting profile

13 tagged reports appeared within 20,361 civic reports in 2021–2025, equal to 6.38 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 7.50 in 2021–2023 versus 4.78 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
6.38
per 10K civic reports
Tagged coverage
13
5 active years
Recent change
-2.72
per-10K points
Action marker
7.7%
classifier coverage
20212025
Annual evidence
2021 · 21.56/10K (7 reports)2022 · 2.16/10K (1 reports)2023 · 2.43/10K (1 reports)2024 · 1.96/10K (1 reports)2025 · 9.17/10K (3 reports)
Classifier category mix
Environment Pollution · 13

The classifier marked authority or institutional action in 1 reports (7.7%) and conclusion language in 1 (7.7%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Noida's broader civic problems analysis →
Normalized #6 · raw-volume #3 · qualified coverage base

Kolkata: Air Quality Improvement reporting profile

16 tagged reports appeared within 31,282 civic reports in 2021–2025, equal to 5.11 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 8.86 in 2021–2023 versus 1.29 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
5.11
per 10K civic reports
Tagged coverage
16
4 active years
Recent change
-7.57
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 17.69/10K (7 reports)2022 · 6.21/10K (4 reports)2023 · 5.55/10K (3 reports)2024 · 0.00/10K (0 reports)2025 · 3.88/10K (2 reports)
Classifier category mix
Environment Pollution · 15Public health · 1

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Kolkata's broader civic problems analysis →
Normalized #7 · raw-volume #4 · qualified coverage base

Pune: Air Quality Improvement reporting profile

15 tagged reports appeared within 36,239 civic reports in 2021–2025, equal to 4.14 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 5.30 in 2021–2023 versus 2.58 in 2024–2025. The city's peak normalized year was 2023.

Normalized signal
4.14
per 10K civic reports
Tagged coverage
15
5 active years
Recent change
-2.72
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 3.29/10K (2 reports)2022 · 4.11/10K (3 reports)2023 · 8.13/10K (6 reports)2024 · 1.23/10K (1 reports)2025 · 4.07/10K (3 reports)
Classifier category mix
Environment Pollution · 15

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Pune's broader civic problems analysis →
Normalized #8 · raw-volume #11 · qualified coverage base

Ludhiana: Air Quality Improvement reporting profile

5 tagged reports appeared within 12,851 civic reports in 2021–2025, equal to 3.89 per 10,000. The recent-period comparison shows a broadly stable share of local civic coverage: 4.06 in 2021–2023 versus 3.35 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
3.89
per 10K civic reports
Tagged coverage
5
4 active years
Recent change
-0.71
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 8.15/10K (2 reports)2022 · 2.40/10K (1 reports)2023 · 3.09/10K (1 reports)2024 · 0.00/10K (0 reports)2025 · 6.37/10K (1 reports)
Classifier category mix
Environment Pollution · 5

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Ludhiana's broader civic problems analysis →
Normalized #9 · raw-volume #14 · qualified coverage base

Bareilly: Air Quality Improvement reporting profile

3 tagged reports appeared within 8,318 civic reports in 2021–2025, equal to 3.61 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 4.63 in 2021–2023 versus 2.50 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
3.61
per 10K civic reports
Tagged coverage
3
2 active years
Recent change
-2.13
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 13.56/10K (2 reports)2022 · 0.00/10K (0 reports)2023 · 0.00/10K (0 reports)2024 · 0.00/10K (0 reports)2025 · 5.42/10K (1 reports)
Classifier category mix
Environment Pollution · 3

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Bareilly's broader civic problems analysis →
Normalized #10 · raw-volume #7 · qualified coverage base

Gurugram: Air Quality Improvement reporting profile

8 tagged reports appeared within 23,841 civic reports in 2021–2025, equal to 3.36 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 5.01 in 2021–2023 versus 1.01 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
3.36
per 10K civic reports
Tagged coverage
8
4 active years
Recent change
-4.00
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 7.28/10K (2 reports)2022 · 5.24/10K (3 reports)2023 · 3.64/10K (2 reports)2024 · 0.00/10K (0 reports)2025 · 2.12/10K (1 reports)
Classifier category mix
Environment Pollution · 7Public health · 1

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Gurugram's broader civic problems analysis →
Normalized #11 · raw-volume #12 · qualified coverage base

Jaipur: Air Quality Improvement reporting profile

4 tagged reports appeared within 16,200 civic reports in 2021–2025, equal to 2.47 per 10,000. The recent-period comparison shows a rising share of local civic coverage: 1.94 in 2021–2023 versus 3.38 in 2024–2025. The city's peak normalized year was 2024.

Normalized signal
2.47
per 10K civic reports
Tagged coverage
4
3 active years
Recent change
+1.44
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 3.68/10K (1 reports)2022 · 0.00/10K (0 reports)2023 · 2.46/10K (1 reports)2024 · 7.70/10K (2 reports)2025 · 0.00/10K (0 reports)
Classifier category mix
Environment Pollution · 3Public health · 1

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Jaipur's broader civic problems analysis →
Normalized #12 · raw-volume #2 · established coverage base

Mumbai: Air Quality Improvement reporting profile

29 tagged reports appeared within 119,517 civic reports in 2021–2025, equal to 2.43 per 10,000. The recent-period comparison shows a rising share of local civic coverage: 1.73 in 2021–2023 versus 3.61 in 2024–2025. The city's peak normalized year was 2025.

Normalized signal
2.43
per 10K civic reports
Tagged coverage
29
4 active years
Recent change
+1.88
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 0.00/10K (0 reports)2022 · 0.35/10K (1 reports)2023 · 5.12/10K (12 reports)2024 · 1.91/10K (4 reports)2025 · 5.14/10K (12 reports)
Classifier category mix
Environment Pollution · 23Public health · 4Infrastructure & utilities · 2

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Mumbai's broader civic problems analysis →
Normalized #13 · raw-volume #10 · qualified coverage base

Chennai: Air Quality Improvement reporting profile

5 tagged reports appeared within 27,784 civic reports in 2021–2025, equal to 1.80 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 2.62 in 2021–2023 versus 0.80 in 2024–2025. The city's peak normalized year was 2022.

Normalized signal
1.80
per 10K civic reports
Tagged coverage
5
3 active years
Recent change
-1.82
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 3.36/10K (1 reports)2022 · 6.31/10K (3 reports)2023 · 0.00/10K (0 reports)2024 · 0.00/10K (0 reports)2025 · 1.53/10K (1 reports)
Classifier category mix
Environment Pollution · 5

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Chennai's broader civic problems analysis →
Normalized #14 · raw-volume #15 · qualified coverage base

Chandigarh: Air Quality Improvement reporting profile

3 tagged reports appeared within 22,311 civic reports in 2021–2025, equal to 1.34 per 10,000. The recent-period comparison shows a broadly stable share of local civic coverage: 1.32 in 2021–2023 versus 1.39 in 2024–2025. The city's peak normalized year was 2024.

Normalized signal
1.34
per 10K civic reports
Tagged coverage
3
3 active years
Recent change
+0.07
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 0.00/10K (0 reports)2022 · 1.73/10K (1 reports)2023 · 1.99/10K (1 reports)2024 · 2.60/10K (1 reports)2025 · 0.00/10K (0 reports)
Classifier category mix
Environment Pollution · 2Public health · 1

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Chandigarh's broader civic problems analysis →
Normalized #15 · raw-volume #9 · qualified coverage base

Bengaluru: Air Quality Improvement reporting profile

7 tagged reports appeared within 58,199 civic reports in 2021–2025, equal to 1.20 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 2.02 in 2021–2023 versus 0.35 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
1.20
per 10K civic reports
Tagged coverage
7
4 active years
Recent change
-1.67
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 3.17/10K (2 reports)2022 · 2.78/10K (3 reports)2023 · 0.79/10K (1 reports)2024 · 0.00/10K (0 reports)2025 · 0.66/10K (1 reports)
Classifier category mix
Environment Pollution · 6Public health · 1

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Bengaluru's broader civic problems analysis →
Normalized #16 · raw-volume #17 · qualified coverage base

Patna: Air Quality Improvement reporting profile

3 tagged reports appeared within 26,153 civic reports in 2021–2025, equal to 1.15 per 10,000. The recent-period comparison shows a rising share of local civic coverage: 0.69 in 2021–2023 versus 1.73 in 2024–2025. The city's peak normalized year was 2022.

Normalized signal
1.15
per 10K civic reports
Tagged coverage
3
3 active years
Recent change
+1.04
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 0.00/10K (0 reports)2022 · 1.86/10K (1 reports)2023 · 0.00/10K (0 reports)2024 · 1.75/10K (1 reports)2025 · 1.70/10K (1 reports)
Classifier category mix
Environment Pollution · 3

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Patna's broader civic problems analysis →
Normalized #17 · raw-volume #16 · qualified coverage base

Lucknow: Air Quality Improvement reporting profile

3 tagged reports appeared within 35,340 civic reports in 2021–2025, equal to 0.85 per 10,000. The recent-period comparison shows a falling share of local civic coverage: 1.41 in 2021–2023 versus 0.00 in 2024–2025. The city's peak normalized year was 2021.

Normalized signal
0.85
per 10K civic reports
Tagged coverage
3
1 active years
Recent change
-1.41
per-10K points
Action marker
0.0%
classifier coverage
20212025
Annual evidence
2021 · 4.50/10K (3 reports)2022 · 0.00/10K (0 reports)2023 · 0.00/10K (0 reports)2024 · 0.00/10K (0 reports)2025 · 0.00/10K (0 reports)
Classifier category mix
Environment Pollution · 3

The classifier marked authority or institutional action in 0 reports (0.0%) and conclusion language in 0 (0.0%). These are article-level signals: repeated coverage can refer to the same underlying event, and the markers do not prove official resolution.

Open Lucknow's broader civic problems analysis →
National trend and methodology
All 45 cities

Annual normalized signal

20212025
2021 · 7.89/10K (123)2022 · 2.85/10K (62)2023 · 6.05/10K (131)2024 · 3.17/10K (65)2025 · 6.57/10K (127)

Annual values use all covered cities, including cities that do not pass the page-level ranking gate.

Transparent limits

How Prism Geo built this ranking

  • Universe: 45 Indian cities with an existing Prism Geo city manifest; conservative legacy names such as Bangalore/Bengaluru are merged.
  • Window: complete calendar years 2021–2025. Partial 2026 data is excluded.
  • Signal: the exact source tag air_quality_improvement; topic variants are not silently combined.
  • Score: tagged reports ÷ all civic reports × 10,000; raw volume is shown alongside it.
  • Coverage, action, and conclusion figures are classifier outputs. Multiple reports can concern one event, and absence of coverage is not absence of a problem.

Source: marketai.civic_geo_agg. This dataset supports comparison of reporting patterns only; it cannot establish actual case counts, risk, prevalence, or official performance.

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