Kochi vs Nagapattinam
Side-by-side air quality comparison between Kochi and Nagapattinam.
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 | Kochi | Nagapattinam |
|---|---|---|
| PM2.5(µg/m³) | 7.80 | 12.00 |
| PM10(µg/m³) | 9.90 | 15.60 |
| NO₂(µg/m³) | 10.00 | 10.70 |
| SO₂(µg/m³) | 2.70 | 3.80 |
| O₃(µg/m³) | 24.00 | 35.00 |
| CO(µg/m³) | 125.00 | 206.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Nagapattinam averaged 60 — a 31-point (52%) gap, with Kochi the more polluted and Nagapattinam the cleaner of the two.
Seasonality & days
Kochi peaks in January, while Nagapattinam peaks in November. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).
Verdict
🏆 Kochi has better air quality with an AQI of 13 compared to Nagapattinam's 20.