Kochi vs Nārnaul
Side-by-side air quality comparison between Kochi and Nārnaul.
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 | Nārnaul |
|---|---|---|
| PM2.5(µg/m³) | 6.60 | 32.90 |
| PM10(µg/m³) | 10.40 | 112.90 |
| NO₂(µg/m³) | 3.20 | 0.40 |
| SO₂(µg/m³) | 2.40 | 4.00 |
| O₃(µg/m³) | 63.00 | 137.00 |
| CO(µg/m³) | 109.00 | 264.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kochi averaged an AQI of 91 while Nārnaul averaged 94 — a 3-point (3%) gap, with Nārnaul the more polluted and Kochi the cleaner of the two. On 1040 days when both cities reported, Kochi was cleaner on 709 of them; the average daily gap was 67 AQI points.
Seasonality & days
Kochi peaks in January, while Nārnaul peaks in November. Kochi logged 0% Severe days and 70.9% Good-or-Satisfactory days; Nārnaul was 0.1% Severe and 40.8% Good-or-Satisfactory. Longest clean-air streaks: Kochi 80 days, Nārnaul 63 days.
Year-over-year progress
Kochi has worsened by 7 AQI points (8.3%) from 2020 to 2024; Nārnaul has improved by 37 AQI points (28.2%) over the same window. The worst recorded day for Kochi reached AQI 293 at Vyttila Kochi (PCB) on 2022-12-08; Nārnaul hit AQI 435 at Shastri Nagar (HSPCB) on 2023-11-16.
Station-level disparity
Kochi spans 1 CPCB stations with a 0-point spread (min 88, max 88); Nārnaul spans 1 stations with a 0-point spread (min 130, max 130).
Verdict
🏆 Kochi has better air quality with an AQI of 11 compared to Nārnaul's 110. That's a significant difference of 99 points.