Gwalior vs Prayagraj
Side-by-side air quality comparison between Gwalior and Prayagraj.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Gwalior | Prayagraj |
|---|---|---|
| PM2.5(µg/m³) | 40.70 | 76.80 |
| PM10(µg/m³) | 97.60 | 93.80 |
| NO₂(µg/m³) | 14.70 | 59.00 |
| SO₂(µg/m³) | 5.70 | 16.00 |
| O₃(µg/m³) | 49.00 | 8.00 |
| CO(µg/m³) | 247.00 | 252.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Prayagraj averaged 80 — a 56-point (70%) gap, with Gwalior the more polluted and Prayagraj the cleaner of the two. On 901 days when both cities reported, Prayagraj was cleaner on 647 of them; the average daily gap was 61 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Prayagraj 69 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).
Verdict
🏆 Gwalior has better air quality with an AQI of 98 compared to Prayagraj's 156. That's a significant difference of 58 points.