Ghaziabad vs Siliguri
Side-by-side air quality comparison between Ghaziabad and Siliguri.
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 | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 71.90 | 82.20 |
| PM10(µg/m³) | 97.30 | 105.70 |
| NO₂(µg/m³) | 36.60 | 15.40 |
| SO₂(µg/m³) | 11.50 | 6.50 |
| O₃(µg/m³) | 36.00 | 95.00 |
| CO(µg/m³) | 522.00 | 539.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ghaziabad averaged an AQI of 177 while Siliguri averaged 81 — a 96-point (119%) gap, with Ghaziabad the more polluted and Siliguri the cleaner of the two. On 1900 days when both cities reported, Siliguri was cleaner on 1768 of them; the average daily gap was 142 AQI points.
Seasonality & days
Ghaziabad peaks in November, while Siliguri peaks in February. Ghaziabad logged 12.2% Severe days and 13.700000000000001% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Ghaziabad 19 days, Siliguri 180 days.
Year-over-year progress
Ghaziabad has improved by 115 AQI points (39.4%) from 2017 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Ghaziabad reached AQI 500 at Vasundhara (UPPCB) on 2017-12-21; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Ghaziabad spans 4 CPCB stations with a 30-point spread (min 198, max 228); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Ghaziabad has better air quality with an AQI of 140 compared to Siliguri's 174.