Madurai vs Purnia
Side-by-side air quality comparison between Madurai and Purnia.
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 | Purnia |
|---|---|---|
| PM2.5(µg/m³) | 15.50 | 105.90 |
| PM10(µg/m³) | 16.70 | 109.00 |
| NO₂(µg/m³) | 19.40 | 25.20 |
| SO₂(µg/m³) | 4.80 | 20.10 |
| O₃(µg/m³) | 20.00 | 67.00 |
| CO(µg/m³) | 212.00 | 707.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Madurai averaged an AQI of 48 while Purnia averaged 133 — a 85-point (177%) gap, with Purnia the more polluted and Madurai the cleaner of the two. On 69 days when both cities reported, Madurai was cleaner on 67 of them; the average daily gap was 120 AQI points.
Seasonality & days
Madurai peaks in December, while Purnia peaks in January. Madurai logged 0% Severe days and 98.7% Good-or-Satisfactory days; Purnia was 3.7% Severe and 33.699999999999996% Good-or-Satisfactory. Longest clean-air streaks: Madurai 17 days, Purnia 14 days.
Year-over-year progress
The worst recorded day for Madurai reached AQI 105 at Uchapatti (TNPCB) on 2024-11-26; Purnia hit AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15.
Station-level disparity
Madurai spans 1 CPCB stations with a 0-point spread (min 48, max 48); Purnia spans 1 stations with a 0-point spread (min 176, max 176).
Verdict
🏆 Madurai has better air quality with an AQI of 26 compared to Purnia's 253. That's a significant difference of 227 points.