Begusarai vs Katihar
Side-by-side air quality comparison between Begusarai and Katihar.
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 | Begusarai | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 93.40 | 105.90 |
| PM10(µg/m³) | 103.60 | 109.00 |
| NO₂(µg/m³) | 41.50 | 25.20 |
| SO₂(µg/m³) | 17.90 | 20.10 |
| O₃(µg/m³) | 64.00 | 67.00 |
| CO(µg/m³) | 637.00 | 727.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Katihar averaged 123 — a 5-point (4%) gap, with Begusarai the more polluted and Katihar the cleaner of the two. On 293 days when both cities reported, Katihar was cleaner on 201 of them; the average daily gap was 64 AQI points.
Seasonality & days
Begusarai peaks in January, while Katihar peaks in December. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Katihar 19 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Begusarai has better air quality with an AQI of 212 compared to Katihar's 253.