Madurai vs Siliguri
Side-by-side air quality comparison between Madurai 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 | Madurai | Siliguri |
|---|---|---|
| PM2.5(µg/m³) | 13.70 | 82.20 |
| PM10(µg/m³) | 15.40 | 105.70 |
| NO₂(µg/m³) | 23.90 | 15.40 |
| SO₂(µg/m³) | 4.60 | 6.50 |
| O₃(µg/m³) | 10.00 | 95.00 |
| CO(µg/m³) | 188.00 | 539.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Madurai averaged an AQI of 48 while Siliguri averaged 81 — a 33-point (69%) gap, with Siliguri the more polluted and Madurai the cleaner of the two. On 76 days when both cities reported, Madurai was cleaner on 66 of them; the average daily gap was 38 AQI points.
Seasonality & days
Madurai peaks in December, while Siliguri peaks in February. Madurai logged 0% Severe days and 98.7% Good-or-Satisfactory days; Siliguri was 0.1% Severe and 61.8% Good-or-Satisfactory. Longest clean-air streaks: Madurai 17 days, Siliguri 180 days.
Year-over-year progress
The worst recorded day for Madurai reached AQI 105 at Uchapatti (TNPCB) on 2024-11-26; Siliguri hit AQI 415 at Ward-32 Bapupara (WBPCB) on 2018-02-08.
Station-level disparity
Madurai spans 1 CPCB stations with a 0-point spread (min 48, max 48); Siliguri spans 1 stations with a 0-point spread (min 107, max 107).
Verdict
🏆 Madurai has better air quality with an AQI of 23 compared to Siliguri's 174. That's a significant difference of 151 points.