Gaya vs Kollam
Side-by-side air quality comparison between Gaya 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 | Gaya | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 42.60 | 4.90 |
| PM10(µg/m³) | 66.80 | 7.80 |
| NO₂(µg/m³) | 0.80 | 1.20 |
| SO₂(µg/m³) | 8.10 | 0.60 |
| O₃(µg/m³) | 165.00 | 48.00 |
| CO(µg/m³) | 239.00 | 99.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gaya averaged an AQI of 110 while Kollam averaged 84 — a 26-point (31%) gap, with Gaya the more polluted and Kollam the cleaner of the two. On 1401 days when both cities reported, Kollam was cleaner on 1100 of them; the average daily gap was 93 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Gaya logged 1.7% Severe days and 32% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Gaya 52 days, Kollam 65 days.
Year-over-year progress
Gaya has improved by 89 AQI points (44.7%) from 2016 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Gaya reached AQI 500 at Collectorate (BSPCB) on 2016-10-15; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Gaya spans 3 CPCB stations with a 85-point spread (min 88, max 173); Kollam spans 1 stations with a 0-point spread (min 84, max 84).
Verdict
🏆 Kollam has better air quality with an AQI of 8 compared to Gaya's 72. That's a significant difference of 64 points.