Gwalior vs Kolār
Side-by-side air quality comparison between Gwalior and Kolār.
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 | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 39.10 | 5.10 |
| PM10(µg/m³) | 89.40 | 6.20 |
| NO₂(µg/m³) | 12.30 | 8.80 |
| SO₂(µg/m³) | 6.20 | 4.30 |
| O₃(µg/m³) | 61.00 | 34.00 |
| CO(µg/m³) | 248.00 | 183.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gwalior averaged an AQI of 136 while Kolār averaged 65 — a 71-point (109%) gap, with Gwalior the more polluted and Kolār the cleaner of the two. On 736 days when both cities reported, Kolār was cleaner on 672 of them; the average daily gap was 106 AQI points.
Seasonality & days
Gwalior peaks in November, while Kolār peaks in September. Gwalior logged 0.4% Severe days and 31.5% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Gwalior 47 days, Kolār 17 days.
Year-over-year progress
Gwalior has improved by 12 AQI points (8.1%) from 2020 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Gwalior reached AQI 450 at City Center (MPPCB) on 2021-11-09; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Gwalior spans 4 CPCB stations with a 53-point spread (min 112, max 165); Kolār spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Kolār has better air quality with an AQI of 9 compared to Gwalior's 90. That's a significant difference of 81 points.