Ghaziabad vs Kolār
Side-by-side air quality comparison between Ghaziabad 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 | Ghaziabad | Kolār |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 5.10 |
| PM10(µg/m³) | 96.40 | 6.20 |
| NO₂(µg/m³) | 27.40 | 8.80 |
| SO₂(µg/m³) | 11.00 | 4.30 |
| O₃(µg/m³) | 65.00 | 34.00 |
| CO(µg/m³) | 542.00 | 183.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ghaziabad averaged an AQI of 177 while Kolār averaged 65 — a 112-point (172%) gap, with Ghaziabad the more polluted and Kolār the cleaner of the two. On 989 days when both cities reported, Kolār was cleaner on 951 of them; the average daily gap was 184 AQI points.
Seasonality & days
Ghaziabad peaks in November, while Kolār peaks in September. Ghaziabad logged 12.2% Severe days and 13.700000000000001% Good-or-Satisfactory days; Kolār was 0.9% Severe and 85.30000000000001% Good-or-Satisfactory. Longest clean-air streaks: Ghaziabad 19 days, Kolār 17 days.
Year-over-year progress
Ghaziabad has improved by 115 AQI points (39.4%) from 2017 to 2024; Kolār has improved by 56 AQI points (46.3%) over the same window. The worst recorded day for Ghaziabad reached AQI 500 at Vasundhara (UPPCB) on 2017-12-21; Kolār hit AQI 500 at Tamaka Ind Area (KSPCB) on 2018-09-18.
Station-level disparity
Ghaziabad spans 4 CPCB stations with a 30-point spread (min 198, max 228); 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 Ghaziabad's 133. That's a significant difference of 124 points.