Kollam vs Moradabad
Side-by-side air quality comparison between Kollam and Moradabad.
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 | Moradabad |
|---|---|---|
| PM2.5(µg/m³) | 4.60 | 72.90 |
| PM10(µg/m³) | 7.10 | 91.00 |
| NO₂(µg/m³) | 4.40 | 37.20 |
| SO₂(µg/m³) | 1.50 | 10.50 |
| O₃(µg/m³) | 30.00 | 34.00 |
| CO(µg/m³) | 89.00 | 1241.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Moradabad averaged 99 — a 15-point (18%) gap, with Moradabad the more polluted and Kollam the cleaner of the two. On 978 days when both cities reported, Kollam was cleaner on 814 of them; the average daily gap was 91 AQI points.
Seasonality & days
Kollam peaks in January, while Moradabad peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Moradabad was 2.8% Severe and 25% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Moradabad 55 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Moradabad has improved by 223 AQI points (69.3%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Moradabad hit AQI 489 at Lajpat Nagar (UPPCB) on 2020-11-05.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Moradabad spans 7 stations with a 114-point spread (min 96, max 210).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Moradabad's 144. That's a significant difference of 136 points.