Kollam vs Madikeri
Side-by-side air quality comparison between Kollam and Madikeri.
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 | Kollam | Madikeri |
|---|---|---|
| PM2.5(µg/m³) | 4.60 | 1.30 |
| PM10(µg/m³) | 7.10 | 1.50 |
| NO₂(µg/m³) | 4.40 | 4.20 |
| SO₂(µg/m³) | 1.50 | 1.00 |
| O₃(µg/m³) | 30.00 | 33.00 |
| CO(µg/m³) | 89.00 | 111.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Madikeri averaged 35 — a 49-point (140%) gap, with Kollam the more polluted and Madikeri the cleaner of the two. On 1209 days when both cities reported, Madikeri was cleaner on 1150 of them; the average daily gap was 44 AQI points.
Seasonality & days
Kollam peaks in January, while Madikeri peaks in February. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Madikeri was 0% Severe and 98.8% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Madikeri 126 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Madikeri has improved by 26 AQI points (42.6%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Madikeri hit AQI 163 at Stuart Hill (KSPCB) on 2020-12-27.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Madikeri spans 1 stations with a 0-point spread (min 42, max 42).
Verdict
🏆 Madikeri has better air quality with an AQI of 2 compared to Kollam's 8.