Nagapattinam vs Patna
Side-by-side air quality comparison between Nagapattinam and Patna.
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 | Nagapattinam | Patna |
|---|---|---|
| PM2.5(µg/m³) | 12.00 | 99.00 |
| PM10(µg/m³) | 15.60 | 111.80 |
| NO₂(µg/m³) | 10.70 | 49.30 |
| SO₂(µg/m³) | 3.80 | 18.10 |
| O₃(µg/m³) | 35.00 | 19.00 |
| CO(µg/m³) | 206.00 | 704.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nagapattinam averaged an AQI of 60 while Patna averaged 172 — a 112-point (187%) gap, with Patna the more polluted and Nagapattinam the cleaner of the two. On 47 days when both cities reported, Nagapattinam was cleaner on 47 of them; the average daily gap was 239 AQI points.
Seasonality & days
Nagapattinam peaks in November, while Patna peaks in December. Nagapattinam logged 0% Severe days and 91.5% Good-or-Satisfactory days; Patna was 7.5% Severe and 19.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Nagapattinam 8 days, Patna 30 days.
Year-over-year progress
The worst recorded day for Nagapattinam reached AQI 113 at Velippalayam (TNPCB) on 2024-12-16; Patna hit AQI 491 at IGSC Planetarium Complex (BSPCB) on 2016-01-01.
Station-level disparity
Nagapattinam spans 1 CPCB stations with a 0-point spread (min 60, max 60); Patna spans 6 stations with a 39-point spread (min 154, max 193).
Verdict
🏆 Nagapattinam has better air quality with an AQI of 20 compared to Patna's 231. That's a significant difference of 211 points.