Kalyān vs Kochi
Side-by-side air quality comparison between Kalyān and Kochi.
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 | Kalyān | Kochi |
|---|---|---|
| PM2.5(µg/m³) | 23.70 | 8.80 |
| PM10(µg/m³) | 40.90 | 11.60 |
| NO₂(µg/m³) | 20.60 | 8.90 |
| SO₂(µg/m³) | 23.00 | 2.70 |
| O₃(µg/m³) | 23.00 | 30.00 |
| CO(µg/m³) | 186.00 | 119.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kalyān averaged an AQI of 95 while Kochi averaged 91 — a 4-point (4%) gap, with Kalyān the more polluted and Kochi the cleaner of the two. On 715 days when both cities reported, Kochi was cleaner on 482 of them; the average daily gap was 61 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kalyān logged 0.1% Severe days and 46.4% Good-or-Satisfactory days; Kochi was 0% Severe and 70.9% Good-or-Satisfactory. Longest clean-air streaks: Kalyān 78 days, Kochi 80 days.
Year-over-year progress
Kalyān has improved by 4 AQI points (4%) from 2019 to 2024; Kochi has worsened by 7 AQI points (8.3%) over the same window. The worst recorded day for Kalyān reached AQI 414 at Khadakpada (MPCB) on 2022-01-24; Kochi hit AQI 293 at Vyttila Kochi (PCB) on 2022-12-08.
Station-level disparity
Kalyān spans 2 CPCB stations with a 18-point spread (min 98, max 116); Kochi spans 1 stations with a 0-point spread (min 88, max 88).
Verdict
🏆 Kochi has better air quality with an AQI of 15 compared to Kalyān's 41.