Prayagraj vs Siliguri
Side-by-side air quality comparison between Prayagraj 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 | Prayagraj | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 61.00 | 77.80 |
| PM10(µg/m³) | 73.80 | 98.30 |
| NO₂(µg/m³) | 45.90 | 11.30 |
| SO₂(µg/m³) | 15.60 | 6.80 |
| O₃(µg/m³) | 36.00 | 115.00 |
| CO(µg/m³) | 240.00 | 523.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Prayagraj averaged an AQI of 80 while Siliguri averaged 81 — a 1-point (1%) gap, with Siliguri the more polluted and Prayagraj the cleaner of the two. On 849 days when both cities reported, Siliguri was cleaner on 645 of them; the average daily gap was 53 AQI points.
Seasonality & days
Prayagraj peaks in November, while Siliguri peaks in February. Prayagraj logged 0.2% Severe days and 48% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Prayagraj 69 days, Siliguri 180 days.
Year-over-year progress
Prayagraj has improved by 42 AQI points (34.4%) from 2021 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Prayagraj reached AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Prayagraj spans 3 CPCB stations with a 9-point spread (min 96, max 105); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Prayagraj has better air quality with an AQI of 104 compared to Siliguri's 160. That's a significant difference of 56 points.