Begusarai vs Kollam
Side-by-side air quality comparison between Begusarai 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Kollam averaged 84 — a 44-point (52%) gap, with Begusarai the more polluted and Kollam the cleaner of the two. On 276 days when both cities reported, Kollam was cleaner on 245 of them; the average daily gap was 152 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Kollam was 0% Severe and 81% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Kollam 65 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Kollam has improved by 2 AQI points (2.3%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Kollam hit AQI 272 at Polayathode Kollam (PCB) on 2024-04-06.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Kollam spans 1 stations with a 0-point spread (min 84, max 84).