Kollam vs Rajgir
Side-by-side air quality comparison between Kollam and Rajgir.
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 Rajgir averaged 124 — a 40-point (48%) gap, with Rajgir the more polluted and Kollam the cleaner of the two. On 726 days when both cities reported, Kollam was cleaner on 544 of them; the average daily gap was 90 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; Rajgir was 0.6% Severe and 37.9% Good-or-Satisfactory. Longest clean-air streaks: Kollam 65 days, Rajgir 26 days.
Year-over-year progress
Kollam has improved by 2 AQI points (2.3%) from 2020 to 2024; Rajgir has improved by 158 AQI points (56%) over the same window. The worst recorded day for Kollam reached AQI 272 at Polayathode Kollam (PCB) on 2024-04-06; Rajgir hit AQI 461 at Dangi Tola (BSPCB) on 2022-12-31.
Station-level disparity
Kollam spans 1 CPCB stations with a 0-point spread (min 84, max 84); Rajgir spans 1 stations with a 0-point spread (min 154, max 154).