Noida vs Siliguri
Side-by-side air quality comparison between Noida 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 | Noida | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 67.50 | 82.20 |
| PM10(µg/m³) | 134.10 | 105.70 |
| NO₂(µg/m³) | 34.90 | 15.40 |
| SO₂(µg/m³) | 17.50 | 6.50 |
| O₃(µg/m³) | 48.00 | 95.00 |
| CO(µg/m³) | 554.00 | 539.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Noida averaged an AQI of 182 while Siliguri averaged 81 — a 101-point (125%) gap, with Noida the more polluted and Siliguri the cleaner of the two. On 1906 days when both cities reported, Siliguri was cleaner on 1745 of them; the average daily gap was 129 AQI points.
Seasonality & days
Noida peaks in November, while Siliguri peaks in February. Noida logged 8.9% Severe days and 16.5% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Noida 14 days, Siliguri 180 days.
Year-over-year progress
Noida has improved by 79 AQI points (30.3%) from 2017 to 2024; Siliguri has improved by 39 AQI points (32.5%) over the same window. The worst recorded day for Noida reached AQI 500 at Sector-1 (UPPCB) on 2019-11-01; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Noida spans 4 CPCB stations with a 15-point spread (min 195, max 210); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Noida has better air quality with an AQI of 126 compared to Siliguri's 174.