Kollam vs Sirsa
Side-by-side air quality comparison between Kollam and Sirsa.
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 | Sirsa |
|---|---|---|
| PM2.5(µg/m³) | 5.50 | 70.50 |
| PM10(µg/m³) | 7.90 | 238.00 |
| NO₂(µg/m³) | 3.80 | 27.50 |
| SO₂(µg/m³) | 1.60 | 8.40 |
| O₃(µg/m³) | 33.00 | 54.00 |
| CO(µg/m³) | 96.00 | 316.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Sirsa averaged 115 — a 31-point (37%) gap, with Sirsa the more polluted and Kollam the cleaner of the two. On 1021 days when both cities reported, Kollam was cleaner on 754 of them; the average daily gap was 61 AQI points.
Seasonality & days
Kollam peaks in January, while Sirsa peaks in November. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Sirsa was 0.5% Severe and 41.300000000000004% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Sirsa 40 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Sirsa has improved by 48 AQI points (29.4%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Sirsa hit AQI 462 at F-Block (HSPCB) on 2019-11-01.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Sirsa spans 1 stations with a 0-point spread (min 132, max 132).
Verdict
🏆 Kollam has better air quality with an AQI of 9 compared to Sirsa's 192. That's a significant difference of 183 points.