Kollam vs Malegaon
Side-by-side air quality comparison between Kollam and Malegaon.
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 | Malegaon |
|---|---|---|
| PM2.5(µg/m³) | 4.80 | 20.70 |
| PM10(µg/m³) | 7.50 | 45.10 |
| NO₂(µg/m³) | 1.80 | 1.40 |
| SO₂(µg/m³) | 0.70 | 3.90 |
| O₃(µg/m³) | 50.00 | 123.00 |
| CO(µg/m³) | 104.00 | 138.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Malegaon averaged 114 — a 30-point (36%) gap, with Malegaon the more polluted and Kollam the cleaner of the two. On 412 days when both cities reported, Kollam was cleaner on 281 of them; the average daily gap was 48 AQI points.
Seasonality & days
Kollam peaks in January, while Malegaon peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Malegaon was 0% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Malegaon 51 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Malegaon has worsened by 16 AQI points (16.3%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Malegaon hit AQI 298 at Mahesh Nagar (MPCB) on 2024-07-07.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Malegaon spans 1 stations with a 0-point spread (min 109, max 109).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Malegaon's 45.