Hanumāngarh vs Kollam
Side-by-side air quality comparison between Hanumāngarh and Kollam.
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 | Hanumāngarh | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 39.90 | 5.50 |
| PM10(µg/m³) | 67.10 | 7.90 |
| NO₂(µg/m³) | 16.50 | 3.80 |
| SO₂(µg/m³) | 10.10 | 1.60 |
| O₃(µg/m³) | 83.00 | 33.00 |
| CO(µg/m³) | 339.00 | 96.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hanumāngarh averaged an AQI of 178 while Kollam averaged 84 — a 94-point (112%) gap, with Hanumāngarh the more polluted and Kollam the cleaner of the two. On 484 days when both cities reported, Kollam was cleaner on 444 of them; the average daily gap was 111 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Hanumāngarh logged 2.8% Severe days and 20% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Hanumāngarh 22 days, Kollam 65 days.
Year-over-year progress
Hanumāngarh has improved by 13 AQI points (6.8%) from 2023 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Hanumāngarh reached AQI 447 at Housing Board (RSPCB) on 2023-11-25; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Hanumāngarh spans 1 CPCB stations with a 0-point spread (min 184, max 184); Kollam spans 1 stations with a 0-point spread (min 84, max 84).
Verdict
🏆 Kollam has better air quality with an AQI of 9 compared to Hanumāngarh's 68. That's a significant difference of 59 points.