Gorakhpur vs Kollam
Side-by-side air quality comparison between Gorakhpur 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 | Gorakhpur | Kollam |
|---|---|---|
| PM2.5(µg/m³) | 85.00 | 5.50 |
| PM10(µg/m³) | 96.60 | 7.90 |
| NO₂(µg/m³) | 49.30 | 3.80 |
| SO₂(µg/m³) | 15.60 | 1.60 |
| O₃(µg/m³) | 45.00 | 33.00 |
| CO(µg/m³) | 488.00 | 96.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gorakhpur averaged an AQI of 109 while Kollam averaged 84 — a 25-point (30%) gap, with Gorakhpur the more polluted and Kollam the cleaner of the two. On 1018 days when both cities reported, Kollam was cleaner on 541 of them; the average daily gap was 45 AQI points.
Seasonality & days
Gorakhpur peaks in November, while Kollam peaks in January. Gorakhpur logged 0% Severe days and 57.099999999999994% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Gorakhpur 62 days, Kollam 65 days.
Year-over-year progress
Gorakhpur has worsened by 7 AQI points (6.9%) from 2021 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Gorakhpur reached AQI 393 at Madan Mohan Malaviya University of Technology (UPPCB) on 2021-11-09; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Gorakhpur spans 1 CPCB stations with a 0-point spread (min 99, max 99); 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 Gorakhpur's 184. That's a significant difference of 175 points.