Kollam vs Varanasi
Side-by-side air quality comparison between Kollam and Varanasi.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Kollam averaged an AQI of 84 while Varanasi averaged 56 — a 28-point (50%) gap, with Kollam the more polluted and Varanasi the cleaner of the two. On 1101 days when both cities reported, Kollam was cleaner on 713 of them; the average daily gap was 61 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Kollam logged 0% Severe days and 81% Good-or-Satisfactory days; Varanasi was 2.8% Severe and 36% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Varanasi 87 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Varanasi has improved by 169 AQI points (75.1%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Varanasi hit AQI 500 at Ardhali Bazar (UPPCB) on 2017-07-11.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Varanasi spans 4 stations with a 94-point spread (min 71, max 165).