Bettiah vs Katihar
Side-by-side air quality comparison between Bettiah 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 | Bettiah | Katihar |
|---|---|---|
| PM2.5(µg/m³) | 105.00 | 105.90 |
| PM10(µg/m³) | 116.60 | 109.00 |
| NO₂(µg/m³) | 41.60 | 25.20 |
| SO₂(µg/m³) | 13.00 | 20.10 |
| O₃(µg/m³) | 55.00 | 67.00 |
| CO(µg/m³) | 1389.00 | 727.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Katihar averaged 123 — a 4-point (3%) gap, with Bettiah the more polluted and Katihar the cleaner of the two. On 694 days when both cities reported, Bettiah was cleaner on 401 of them; the average daily gap was 61 AQI points.
Seasonality & days
Bettiah peaks in November, while Katihar peaks in December. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Katihar was 3.1% Severe and 26.9% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Katihar 19 days.
Year-over-year progress
Bettiah has improved by 73 AQI points (36.5%) from 2021 to 2024; Katihar has improved by 188 AQI points (60.5%) over the same window. The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Katihar hit AQI 465 at Mirchaibari (BSPCB) on 2023-01-23.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Katihar spans 1 stations with a 0-point spread (min 185, max 185).
Verdict
🏆 Bettiah has better air quality with an AQI of 251 compared to Katihar's 253.