Ghaziabad vs Silchar
Side-by-side air quality comparison between Ghaziabad and Silchar.
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 | Silchar |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 53.00 |
| PM10(µg/m³) | 96.40 | 63.80 |
| NO₂(µg/m³) | 27.40 | 13.90 |
| SO₂(µg/m³) | 11.00 | 7.50 |
| O₃(µg/m³) | 65.00 | 95.00 |
| CO(µg/m³) | 542.00 | 276.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ghaziabad averaged an AQI of 177 while Silchar averaged 52 — a 125-point (240%) gap, with Ghaziabad the more polluted and Silchar the cleaner of the two. On 352 days when both cities reported, Silchar was cleaner on 344 of them; the average daily gap was 157 AQI points.
Seasonality & days
Ghaziabad peaks in November, while Silchar peaks in February. Ghaziabad logged 12.2% Severe days and 13.700000000000001% Good-or-Satisfactory days; Silchar was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Ghaziabad 19 days, Silchar 87 days.
Year-over-year progress
Ghaziabad has improved by 115 AQI points (39.4%) from 2017 to 2024; Silchar has worsened by 11 AQI points (26.8%) over the same window. The worst recorded day for Ghaziabad reached AQI 500 at Vasundhara (UPPCB) on 2017-12-21; Silchar hit AQI 89 at Tarapur (PCBA) on 2023-04-29.
Station-level disparity
Ghaziabad spans 4 CPCB stations with a 30-point spread (min 198, max 228); Silchar spans 1 stations with a 0-point spread (min 47, max 47).
Verdict
🏆 Silchar has better air quality with an AQI of 89 compared to Ghaziabad's 133.